Relevant bibliographies by topics / Active deformation

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Active deformation'

Author: Grafiati
Published: 5 June 2025
Last updated: 15 July 2025

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Journal articles on the topic "Active deformation"

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Lu, Yi, Cong Cong, Chen Liwei, and Peng Wang. "Solving elastic deformation of some parallel manipulators with linear active legs using computer-aided design variation geometry." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 12 (2013): 2810–24. http://dx.doi.org/10.1177/0954406213478374.

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It has been a significant and challenging issue to determine the elastic deformation of parallel manipulators for their precision analysis and control. A new method is proposed and studied for solving the elastic deformation of some parallel manipulators with linear active legs using computer-aided design variation geometry. First, an original simulation mechanism of a parallel manipulator is constructed; each of the vectors in the force transformation matrix of the parallel manipulators is constructed by this simulation mechanism. The active/constrained wrench and their pose are determined based on the Newton–Euler formulation. Second, the elastic deformed dimensions of the active legs are determined based on the elastic deformation equation and the active/constrained wrench. Third, a new simulation mechanism of this parallel manipulator is constructed by replacing the original dimensions of active legs with the deformed dimensions of active legs and the elastic deformations of parallel manipulators are solved using the pose difference between the original and new simulation mechanisms. Finally, two parallel manipulators are illustrated and their elastic deformations are solved and verified by both analytic approach and finite element method.
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Tiryakioğlu, Ibrahim, Cemal Ozer Yigit, Caglar Ozkaymak, et al. "Active surface deformations detected by precise levelling surveys in the Afyon-Akşehir Graben, Western Anatolia, Turkey." Geofizika 36, no. 1 (2019): 33–52. http://dx.doi.org/10.15233/gfz.2019.36.4.

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In the actively deforming region of western Anatolia, crustal deformation is accommodated by destructive earthquakes and a variety of aseismic events. In this study, we investigated the 2016–2017 aseismic sequence located in the Bolvadin Fault, one of the segments of the Akşehir-Simav Fault System of western Anatolia by analysing surface deformation derived from detailed geological mapping. Our findings suggest that surface deformation in the Bolvadin Fault is accommodated by aseismic episodes. During the field studies in the Bolvadin area, progressive surface deformations, such as surface faults and earth fissures with a length of 800 meters to 3 kilometres and strike of N15°E to N70°E were mapped on a 1/5000 scale. Furthermore, a levelling network was established to calculate the vertical displacements and deformation rate along the surface deformations. Precision level measurements were undertaken in 2016 and 2017. On the routes to the NW of the Bolvadin settlement, a vertical deformation rate of 30 mm/yr was detected in the period of 2016–2017, and a large deformation rate of 40 mm/yr was detected in the same period.
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England, Philip, and James Jackson. "Active Deformation of the Continents." Annual Review of Earth and Planetary Sciences 17, no. 1 (1989): 197–226. http://dx.doi.org/10.1146/annurev.ea.17.050189.001213.

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Lu, Yi, Zhuohong Dai, and Yang Lu. "Precise Stiffness and Elastic Deformations of Serial–Parallel Manipulators by Considering Inertial Wrench of Moving Links." Robotica 38, no. 12 (2020): 2204–20. http://dx.doi.org/10.1017/s0263574720000041.

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SUMMARYA general serial–parallel manipulator connected in series by two different parallel manipulators with linear active legs is constructed. Its precise stiffness and elastic deformations are studied systematically. Its unified precise stiffness and precise elastic deformation models are established by considering both the moving links inertial wrench and the dynamic active/constrained wrench. A 3SPR+3RPS-type serial–parallel manipulator is illustrated for solving its precise stiffness and precise elastic deformation. The derived formulae of the precise stiffness and the precise elastic deformations of the general serial–parallel manipulator are verified by the theoretical solutions of the 3SPR+3RPS serial–parallel manipulator.
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Bagliuk, G. A., and S. F. Kyryliuk. "Numerical analysis of porous blank die forging in the die with the implementation of active friction forces." Izvestiya vuzov. Poroshkovaya metallurgiya i funktsional’nye pokrytiya, no. 3 (November 16, 2020): 17–24. http://dx.doi.org/10.17073/1997-308x-2020-3-17-24.

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The paper provides the results of simulating the hot die forging of porous powder preforms with active friction forces applied along the lateral surface of the deformable blank by means of internal cohesion in the die-material system. The study covers the evolution of relative density distribution over the blank cross section at different stages of deformation, stress-strain state and total strain force while varying the loading boundary conditions by changing the initial compression force applied to elastic elements that prevent the die from displacement. It is shown that active friction forces acting on the periphery of the forging adjacent to the die inner side result in areas with a significantly higher deformation intensity compared to deformations in the center of the blank volume. At the same time, the volume of the high deformation intensity area and maximum values of deformation increase with a decrease in the spring initial compression force and, accordingly, with an increase in the die displacement value during deformation. Automatic die displacement due to internal cohesion in the die-deformable material system leads to a decrease in the total deformation force, and with a decrease in the die displacement value during deformation, the deformation force increases.
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Zahalak, G. I., V. de Laborderie, and J. M. Guccione. "The Effects of Cross-Fiber Deformation on Axial Fiber Stress in Myocardium." Journal of Biomechanical Engineering 121, no. 4 (1999): 376–85. http://dx.doi.org/10.1115/1.2798334.

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We incorporated a three-dimensional generalization of the Huxley cross-bridge theory in a finite element model of ventricular mechanics to examine the effect of nonaxial deformations on active stress in myocardium. According to this new theory, which assumes that macroscopic tissue deformations are transmitted to the myofilament lattice, lateral myofilament spacing affects the axial fiber stress. We calculated stresses and deformations at end-systole under the assumption of strictly isometric conditions. Our results suggest that at the end of ejection, nonaxial deformations may significantly reduce active axial fiber stress in the inner half of the wall of the normal left ventricle (18–35 percent at endocardium, depending on location with respect to apex and base). Moreover, this effect is greater in the case of a compliant ischemic region produced by occlusion of the left anterior descending or circumflex coronary artery (26–54 percent at endocardium). On the other hand, stiffening of the remote and ischemic regions (in the case of a two-week-old infarct) lessens the effect of nonaxial deformation on active stress at all locations (9–32 percent endocardial reductions). These calculated effects are sufficiently large to suggest that the influence of nonaxial deformation on active fiber stress may be important, and should be considered in future studies of cardiac mechanics.
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Subrahmanya, K. R. "Active intraplate deformation in south India." Tectonophysics 262, no. 1-4 (1996): 231–41. http://dx.doi.org/10.1016/0040-1951(96)00005-4.

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Gorthi, Subrahmanyam, Valérie Duay, Xavier Bresson, et al. "Active deformation fields: Dense deformation field estimation for atlas-based segmentation using the active contour framework." Medical Image Analysis 15, no. 6 (2011): 787–800. http://dx.doi.org/10.1016/j.media.2011.05.008.

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Lohse, Felix, Achyuth Ram Annadata, Eric Häntzsche, Thomas Gereke, Wolfgang Trümper, and Chokri Cherif. "Hinged Adaptive Fiber-Rubber Composites Driven by Shape Memory Alloys—Development and Simulation." Materials 15, no. 11 (2022): 3830. http://dx.doi.org/10.3390/ma15113830.

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Adaptive structures based on fiber-rubber composites with integrated Shape Memory Alloys are promising candidates for active deformation tasks in the fields of soft robotics and human-machine interactions. Solid-body hinges improve the deformation behavior of such composite structures. Textile technology enables the user to develop reinforcement fabrics with tailored properties suited for hinged actuation mechanisms. In this work, flat knitting technology is used to create biaxially reinforced, multilayer knitted fabrics with hinge areas and integrated Shape Memory Alloy wires. The hinge areas are achieved by dividing the structures into sections and varying the configuration and number of reinforcement fibers from section to section. The fabrics are then infused with silicone, producing a fiber-rubber composite specimen. An existing simulation model is enhanced to account for the hinges present within the specimen. The active deformation behavior of the resulting structures is then tested experimentally, showing large deformations of the hinged specimens. Finally, the simulation results are compared to the experimental results, showing deformations deviating from the experiments due to the developmental stage of the specimens. Future work will benefit from the findings by improving the deformation behavior of the specimens and enabling further development for first applications.
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Liu, Yongming, Yujian Rui, Zhuanzhe Zhao, Manman Xu, and Yang Zhou. "Topology Optimization Design of an Active Deformable Mirror Based on Discrete Orthogonal Zernike Polynomials." Symmetry 14, no. 11 (2022): 2469. http://dx.doi.org/10.3390/sym14112469.

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In order to design an active deformation mirror for projection objective aberration imaging quality control, a topology optimization design method of active deformation mirrors based on discrete orthogonal Zernike polynomials is proposed in this paper. Firstly, in order to solve the problem that continuous Zernike polynomials do not have orthogonality on the discrete coordinates inside the unit circle, which causes the instability of topology optimization results, discrete orthogonal Zernike polynomials are used to characterize the active deformation mirror wave aberrations. Then, the optical and structural deformations are combined to establish an optical-mechanical coupling topology optimization model with the help of the variable density method to derive the sensitivity of the mathematical model. Finally, a wave aberration corrected deformation mirror in an optical machine system is used as an arithmetic example for topology optimization, and the results show that the absolute value of the Zernike coefficient Z4 after optimization is improved by nearly one order of magnitude compared with the value before optimization, and the vibration characteristics of the optimized structure meet the design requirements. The optimization effect is significant, which improves the optical performance of the deformed mirror and provides a new scheme for the design of the deformed mirror structure which has a certain practical value for engineering.
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Dissertations / Theses on the topic "Active deformation"

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Lee, Jian-Cheng. "Structure et deformation active d'un orogene : taiwan." Paris 6, 1994. http://www.theses.fr/1994PA066395.

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Afin d'examiner et de caracteriser les structures et les deformations actuelles dans la chaine de taiwan, nous avons effectue plusieurs types d'analyses a differentes echelles en trois volets: d'abord, l'analyse d'imagerie: cette etude, effectuee a l'echelle de l'ile de taiwan, permet de synthetiser les caracteristiques morpho-structurales de la chaine et fournit ainsi un cadre aux etudes plus specifiques. Plusieurs types de structures ont ete reconnus, incluant des structures obliques dans les differentes regions, dont certaines inconnues auparavant. L'analyse de frequences directionnelles met en evidence des differences caracteristiques pour les directions dominantes dans les differentes regions. Une carte morphoneotectonique de taiwan a ete realisee en collaboration. Elle represente ainsi une base multisource de donnees numeriques, qui permet les comparaisons avec les autres analyses plus detaillees. Ensuite, l'analyse des accidents majeurs de la chaine a porte sur les trois principaux exemples: 1) les fronts de chevauchement occidentaux, representant les structures et les deformations recentes dans un systeme de plis et de chevauchements a vergence ouest, dans l'ouest de taiwan ; l'analyse des paleocontraintes et l'etude des relations entre erosion, sedimentation et tectonique dans les fronts de chevauchement occidentaux a ete effectuee afin de caracteriser les structures et les deformations plio-quaternaires (en particulier pleistocenes) et de souligner les differences entre le centre et le sud de taiwan. 2) la faille de lishan, situee dans la chaine, representant un accident majeur qui a subi des deformations complexes des le debut de l'orogenese de taiwan ; nous avons reconstruit des profils a partir d'examens de terrain dans la region de la faille de lishan. L'analyse tectonique dans cette region a permis de mettre en evidence les caracteristiques structurales et l'evolution geodynamique de la faille de lishan. 3) la vallee longitudinale, constituant une frontiere principale entre les plaques, et qui absorbe la deformation dans la region de taiwan. Dans la partie meridionale de la vallee longitudinale, la deformation actuelle est essentiellement absorbee sur un segment de faille active, comme le montre l'analyse des donnees geodesiques. Cette deformation est caracterisee par les deplacements de failles, d'ailleurs confirmees par l'examen geologique de terrain. Enfin, l'analyse des mecanismes regionaux a pu etre effectuee pour toute l'ile: il s'agit d'un essai de synthese sur les contraintes tectoniques dans la region de taiwan, afin de preciser le cadre geodynamique de la collision. A partir de l'etablissement d'une base de donnees tectoniques et de la reconstruction des trajectoires de contraintes, nous avons pu caracteriser les mecanismes regionaux de deformation quaternaire actuelle et l'evolution geodynamique en termes de paleocontraintes plio-quaternaires a taiwan
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Whitfield, Carl A. "Modelling spontaneous motion and deformation of active droplets." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/11704/.

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This thesis investigates symmetry breaking phenomena and motile steady states in droplets driven by stresses generated by active (out-of-equilibrium) liquid crystals. First, we show that in a fluid droplet with active polar liquid crystal an asymmetric polarisation field is sufficient to drive steady state motility. We are able to approximate the forces and flows generated in such a system analytically, and show how the force distribution on the droplet interface is characteristic of this motion. Second, we consider the case of a passive fluid droplet immersed in an active liquid crystal. Here we see that strong anchoring at the droplet interface can create an asymmetric equilibrium configuration, and thus any active stress can drive propulsion of the drop. Third we analytically perform linear stability analysis calculations on two kinds of active droplet to determine how active stresses can make these systems unstable to symmetry breaking events. Finally, we produce 2D simulations of these systems so that we can find the resulting steady states of these systems. We observe a rich phase space of behaviour, with steady state flows in the droplets that result in motion, symmetric deformations and rotation.
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Morewood, Nigel Clifford. "Segment boundaries in active normal fault systems." Thesis, Birkbeck (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249514.

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Koberg, Henrik. "Turbulence control for drag reduction with active wall deformation." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486911.

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Ecological and economical considerations motivate the search for ways to reduce the skin friction drag in turbulent flows. Several numerical studies have shown that wall shear stress can be lowered at low Reynolds numbers by applying a small amount of wall transpiration. In this study it is investigated how another type of actuation, active wall deformation, could be used to yield a similar effect. . Ã??Ã?? First. discrete time-dependent wall deformation is studied in laminar flow. Lacking background turbulence, the baseflow allows clear identification of the flow perturbation. The analysis reveals that a downward moving actuator is surrounded by a region of negative wall-normal velocity and vice versa. Comparably less intuitive are the vorticity fields which often display complicated structures. A similar, subsequent study in turbulent flow shows that, indeed, active wall deformation can restruckJre wall turbulence. Seised on thesA findings, a series of experiments were conducted on opposition control. This scheme . aims at opposing the velocity sensed away from the wall by imposing velocity of opposite direction at the wall. By locally deforming the wall accordingly, skin friction reductions of up to 15% are observed. Parameters critical to the performance of the control scheme, such as actuation scales and deformation limiters, are identified and analysed. As Reynolds number and actuation scales are much smaller than in practical applications, the results are of limited applicability but encouraging for prospective drag reduction at higher Reynolds numbers. In a separate study a novel control method based on non-linear global stabilisation of the perturbed Navier-Stokes equations was tested. Using body forcing over the entire domain as actuation. the flow
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Gregory, Laura C. "Active faulting and deformation of the Mongolian Altay Mountains." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:4bbed5b2-4597-4faa-b08c-c182d148c152.

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In this thesis, I use multiple techniques to investigate the active faulting and deformation of the Altay Mountains, Western Mongolia. The Altay are an intracontinental transpressional mountain range, which are deforming in the far-field of the India-Asia collision. An anastomosing network of dextral faults strikes NNW-SSE, and accommodates NE-SW oriented shortening by rotating anticlockwise about vertical axes. I begin by characterising the Altay faults, and add to what is already known about their surface expression with new observations of active faulting and three previously undescribed ancient earthquake ruptures. I use <sup>10</sup>Be cosmogenic dating and uranium-series dating on pedogenic carbonate to estimate the average Quaternary rate of slip for two of the major fault zones in the Altay. The slip rate on the Ölgiy fault is constrained to 0.3-2.1 mm/yr<sup>-1</sup>. Results from the Hovd fault are ambiguous, demonstrating the complications encountered with application of Quaternary dating techniques. I measure palaeomagnetic directions from Cretaceous to Pliocene-aged sediments in the eastern Altay to constrain the degree of anticlockwise rotation. Results from thermal demagnetisation of specimens indicate that the eastern Altay has not undergone significant rotation, in contrast with previous studies from the Siberian Altay that reveal almost 40 degrees of anticlockwise rotation. This suggests that the eastern-most Altay fault is too young to have experienced significant rotation, or is kinematically different from the Siberian Altay. I apply apatite fission track (AFT) dating and track length modeling to the central Altay. Results from AFT dating show rapid cooling in the late Cretaceous due to the distal assembly of Central Asia, suggesting that there was pre-existing topography at the start of the Late Cenozoic phase of deformation, the timing of which is constrained to have initiated at least 20 Myr ago. My work demonstrates that combining results from techniques that cover a variety of time scales quantifies the evolution of active faulting and deformation in the region.
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Shelef, Eitan Oskin Michael. "Deformation processes adjacent to active faults examples from eastern California /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,2066.

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Thesis (M.S.)--University of North Carolina at Chapel Hill, 2008.<br>Title from electronic title page (viewed Feb. 17, 2009). "... in partial fulfillment of the requirements for the degree Master of Science in the Department of Geological Sciences." Discipline: Geology; Department/School: Geological Sciences. Includes supplemental map.
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Toda, Shigeru. "Typical Deformation Modes of Active Faults in the Kinki Region, Central Japan." 京都大学 (Kyoto University), 1999. http://hdl.handle.net/2433/181438.

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Thompson, Stephen C. "Active tectonics in the central Tien Shan, Kyrgyz Republic /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/6744.

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Tarama, Mitsusuke. "Dynamics of active deformable particle - Two types of active spinning motions and dynamics in external flow field -." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199091.

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JAVED, FARHAN. "Earthquake Transients and Mechanics of Active Deformation: Case Studies from Pakistan and Italy." Doctoral thesis, Università degli Studi di Trieste, 2017. http://hdl.handle.net/11368/2908200.

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The understanding of the dynamics of the lithosphere and dominant physical processes during the earthquake cycle is important to estimate the seismic hazard of a given region. In the present study, we rely on seismology to image the geometry of both lithosphere and seismogenic faults and on geodesy to quantify the surface deformation and then we model the time-dependent dynamics of the coupled lithosphere-fault system. In the first part of the work, we study two earthquake transients, in which, one lasts for a few years following the 2005 Mw 7.6 Kashmir’s earthquake and the second exhibits deformation for a couple of weeks before the 2009 Mw 6.3 L’ Aquila earthquake in the central Apennines, and model the long term inter-seismic deformation across the Idrija fault in the Dinarides (Western Slovenia). In this part of work, we report on the dominant physical process during different phases of the earthquake cycle, namely the postseismic and preseismic phases. In the second part of the work, we investigate the temporal change of stress state over the Dinarides and Eastern Alps through the coseismic stress changes induced by earthquakes in this region, together with the related post-seismic and interseismic changes due to relaxation processes and interseismic loading. In the last part of the work, we study the dynamics of a dense lithosphere over a weak asthenosphere beneath the Adria plate and model the present day crustal deformation in the peri-Adriatic region including the Apennines, the Alps, and the Dinarides. The implications of these investigations stand in the understanding of how deformation at the plate boundary scale is transferred to active faults accounting also for transients in the system.<br>The understanding of the dynamics of the lithosphere and dominant physical processes during the earthquake cycle is important to estimate the seismic hazard of a given region. In the present study, we rely on seismology to image the geometry of both lithosphere and seismogenic faults and on geodesy to quantify the surface deformation and then we model the time-dependent dynamics of the coupled lithosphere-fault system. In the first part of the work, we study two earthquake transients, in which, one lasts for a few years following the 2005 Mw 7.6 Kashmir’s earthquake and the second exhibits deformation for a couple of weeks before the 2009 Mw 6.3 L’ Aquila earthquake in the central Apennines, and model the long term inter-seismic deformation across the Idrija fault in the Dinarides (Western Slovenia). In this part of work, we report on the dominant physical process during different phases of the earthquake cycle, namely the postseismic and preseismic phases. In the second part of the work, we investigate the temporal change of stress state over the Dinarides and Eastern Alps through the coseismic stress changes induced by earthquakes in this region, together with the related post-seismic and interseismic changes due to relaxation processes and interseismic loading. In the last part of the work, we study the dynamics of a dense lithosphere over a weak asthenosphere beneath the Adria plate and model the present day crustal deformation in the peri-Adriatic region including the Apennines, the Alps and the Dinarides. The implications of these investigations stand in the understanding of how deformation at the plate boundary scale is transferred to active faults accounting also for transients in the system.
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Books on the topic "Active deformation"

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United States. National Aeronautics and Space Administration., ed. Viscoelastic deformation near active plate boundaries. National Aeronautics and Space Administration, 1986.

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NATO Advanced Study Institute on Biomechanics of Active Movement and Deformation of Cells (1989 Istanbul, Turkey). Biomechanics of active movement and deformation of cells. Springer-Verlag, 1990.

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Akkaş, Nuri, ed. Biomechanics of Active Movement and Deformation of Cells. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-83631-2.

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United States. National Aeronautics and Space Administration., ed. Viscoelastic deformation near active plate boundaries: Status report, April 1, 1991. National Aeronautics and Space Administration, 1991.

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Scott, Ann-Marie Evelyn. Deformation and diagenesis around recently active extensional fault zones: Central Greece. University of Manchester, 1995.

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I, Baljinnyam, ed. Ruptures of major earthquakes and active deformation in Mongolia and its surroundings. Geological Society of America, 1994.

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Brandon, M. T. Deformational processes affecting unlithified sediments at active margins: A field study and a structuralmodel. UMI Dissertation Inf. Service, 1987.

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Moskalenko, Vladislav, Ivan Druz', Lev Leont'ev, and Valenin Tarasov. Features of the influence of the connection points of the set on the bearing capacity of the side floors of ice navigation vessels. INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1870592.

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The monograph is devoted to the consideration of the problems of damage to the side floors of ice navigation vessels from the action of concentrated ice load. The problems of the ultimate equilibrium of the beams of the on-board set are solved, taking into account the features of the ladder fastening. Extensive model experiments on the supercritical deformation of beams are presented. The methods of designing and defecation of the on-board set of ice navigation vessels, taking into account the cable connections, are proposed.&#x0D; It can be useful to scientists, specialists of ship repair plants, senior students of maritime universities, as well as specialists of research institutes and design bureaus evaluating the structural safety of ships under the influence of ice load.
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Viscoelastic deformation near active plate boundaries. National Aeronautics and Space Administration, 1986.

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National Aeronautics and Space Administration (NASA) Staff. Viscoelastic Deformation near Active Plate Boundaries. Independently Published, 2019.

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Book chapters on the topic "Active deformation"

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Toutain, J. P., P. Bachèlery, P. A. Blum, H. Delorme, and P. Kowalski. "Real-time ground deformation monitoring." In Monitoring Active Volcanoes. Routledge, 2022. http://dx.doi.org/10.4324/9781003327080-4.

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Nunnari, G., and G. Puglisi. "GPS - Monitoring volcanic deformation from space." In Monitoring Active Volcanoes. Routledge, 2022. http://dx.doi.org/10.4324/9781003327080-6.

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Murray, J. B., A. D. Pullen, and S. Saunders. "Ground deformation surveying of active volcanoes." In Monitoring Active Volcanoes. Routledge, 2022. http://dx.doi.org/10.4324/9781003327080-5.

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Yokoi, Hayato, Kohei Matsumura, and Yasuyuki Sumi. "Visualization of Life Patterns through Deformation of Maps Based on Users’ Movement Data." In Active Media Technology. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-02750-0_4.

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Karig, D. E. "Kinematics and Mechanics of Deformation Across Some Accreting Forearcs." In Formation of Active Ocean Margins. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4720-7_7.

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Velez, M. L., P. Euillades, M. Blanco, and L. Euillades. "Ground Deformation Between 2002 and 2013 from InSAR Observations." In Active Volcanoes of the World. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-48005-2_8.

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Skalak, Richard, and Cheng Zhu. "Thermodynamics and Mechanics of Active Cell Motions." In Biomechanics of Active Movement and Deformation of Cells. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-83631-2_5.

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Jackson, James. "Rates of Active Deformation in the Eastern Mediterranean." In Recent Evolution and Seismicity of the Mediterranean Region. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2016-6_2.

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Sharon, Eran. "Shaping by Active Deformation of Soft Elastic Sheets." In Mechanical Self-Assembly. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4562-3_3.

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Kirschner, Matthias, and Stefan Wesarg. "Regularisierung lokaler Deformation im probabilistischen Active Shape Model." In Bildverarbeitung für die Medizin 2012. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28502-8_57.

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Conference papers on the topic "Active deformation"

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Zheng, Tianxiang, Binbin Xiang, Shangmin Lin, Wei Wang, Peiyuan Lian, and Hanwei Cui. "Active Compensation of Reflector Antenna Structural Deformation Based on Deep BP-Neural Network." In 2024 IEEE 7th International Conference on Electronic Information and Communication Technology (ICEICT). IEEE, 2024. http://dx.doi.org/10.1109/iceict61637.2024.10671154.

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Barra, Anna, Ivan Fabregat, Anna Echeverria, et al. "MOMPA: InSAR monitoring in the Eastern Pyrenees." In 5th Joint International Symposium on Deformation Monitoring. Editorial de la Universitat Politècnica de València, 2022. http://dx.doi.org/10.4995/jisdm2022.2022.13846.

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This paper describes the main outcomes of the European research project MOMPA (Monitoring of Ground Movements and Action Protocol). Its objective is to provide useful tools for the prevention and management of risks due to slope movements, based on the satellite monitoring InSAR (Interferometric SAR) technique. The project includes two parts: risk evaluation and the integration of InSAR in an action protocol for Civil Protections. The study area encompasses 4000 km2 including a part of the eastern Pyrenees. The project exploited medium-resolution (Sentinel-1) and high-resolution (COSMO-SkyMed) satellite images to generate ground displacement maps at interregional scale and detect the Active Deformation Areas (ADA). The ADA map was used to select movements with potential risk which were further examined by a local analysis using photo interpretation and fieldwork.
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Yamaguchi, Ichirou, Jiyuan Liu, and Jun-ichi Kato. "Active interferometers for shape and deformation measurements." In Optoelectronic Science and Engineering '94: International Conference, edited by Wang Da-Heng, Anna Consortini, and James B. Breckinridge. SPIE, 1994. http://dx.doi.org/10.1117/12.182149.

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Luzi, Guido, Pedro Espín-López, Michele Crosetto, Oriol Monserrat, Anna Barra, and Qi Gao. "DInSAR deformation measurement using active and passive reflectors." In Microwave Remote Sensing: Data Processing and Applications, edited by Claudia Notarnicola, Nazzareno Pierdicca, Fabio Bovenga, and Emanuele Santi. SPIE, 2021. http://dx.doi.org/10.1117/12.2600130.

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Lagneau, Romain, Alexandre Krupa, and Maud Marchal. "Active Deformation through Visual Servoing of Soft Objects." In 2020 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2020. http://dx.doi.org/10.1109/icra40945.2020.9197506.

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Han, Yi, Wei Hong, and LeAnn E. Faidley. "Rate dependent finite deformation of magneto-active polymers." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Zoubeida Ounaies and Stefan S. Seelecke. SPIE, 2011. http://dx.doi.org/10.1117/12.884620.

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Nishimura, Hidekazu, Dezhang Wang, Yoichi Amano, and Taro Shimogo. "Active Control of Shock." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-85623.

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In this paper we deal with active control of shock in a collision problem between two objects. In order to make it clear how the deformation of the shock-receiving object can be maximized while minimizing the deformation of the shock-giving object and how energy can be transmitted unilaterally, the relationships among contact stiffness, deformation time, deformation ratio and energy balance are discussed. The final-state control is applied to obtain a feedforward input to deform the shock-receiving object by a desired amount in a predetermined time. Thus, the energy balance and the energy efficiency are verified. Furthermore we examine the conditions necessary to realize a ‘dynamical diode’ that can transmit energy unilaterally from the shock-giving object to the shock-receiving object. It is demonstrated experimentally that the appropriate feedforward input can be obtained by final-state control under specified conditions of contact stiffness and deformation time.
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Michelini, Alberto, and Francesco Coppi. "Deformation vector measurement by means of ground based interferometric radar system." In Active and Passive Microwave Remote Sensing for Environmental Monitoring, edited by Claudia Notarnicola, Nazzareno Pierdicca, and Emanuele Santi. SPIE, 2017. http://dx.doi.org/10.1117/12.2279147.

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Brinson, L. Catherine, Alexander M. Bekker, and S. Hwang. "Temperature-induced deformation in shape memory alloys." In Symposium on Active Materials and Smart Structures: Society of Engineering Science 31st Annual Meeting, edited by Gary L. Anderson and Dimitris C. Lagoudas. SPIE, 1995. http://dx.doi.org/10.1117/12.200920.

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Redwine, Joanna, Ralph E. Klinger, Ray E. Wells, et al. "EVIDENCE FOR AN ACTIVE GALES CREEK FAULT - A DYNAMIC DUO ACTIVE DEFORMATION CONFIRMATION." In 115th Annual GSA Cordilleran Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019cd-329712.

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Reports on the topic "Active deformation"

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Urlaub, Morelia. Monitoring and Mapping Active Deformation offshore Etna: Cruise No. AL532. GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, 2020. http://dx.doi.org/10.3289/cr_al532.

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Dr. Shemin Ge. Theoretical and Experimental Studies of Hydrological Properties of Rock Features During Active Deformation. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/838813.

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Mauch, James P., and Joel L. Pederson. Geologic Map of the Southern Half of the Rill Creek and Northern Half of the Kane Springs 7.5' Quadrangles, Grand and San Juan Counties, Utah. Utah Geological Survey, 2023. http://dx.doi.org/10.34191/mp-175dm.

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The adjoining southern half of the Rill Creek and northern half of the Kane Springs 7.5′ quadrangles are southeast of Moab, Utah. This area includes the southeastern half of the Moab-Spanish Valley salt graben and the neighboring bedrock plateaus to the southwest and northeast. Mapping of this quadrangle-sized area is part of a broader effort to understand active salt deformation and the associated landscape evolution and geologic hazards in the ancestral Paradox Basin. Strata from Late Triassic to Late Cretaceous age are exposed in the map area, and Quaternary-age units include alluvial, colluvial, eolian, mass-wasting, and fluvial terrace deposits. Graben subsidence is accommodated by systems of shallowly seated, near-vertical, gravitational faults along the margins of Spanish Valley. The two graben-margin fault zones display contrasting deformation styles and fault geometries. Ongoing Quaternary subsidence in Spanish Valley is documented in the spatial and temporal distribution of terrace deposits along Mill and Pack Creeks, which confirms previous hypotheses of active salt deformation. The hazard of active, aseismic, salt-dissolution collapse and faulting appears to be modest, with greater concern relating to attendant mass-wasting processes along the valley margins.
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Gavillot, Yann. Quaternary fault map of Deer Lodge County, southwest Montana. Montana Bureau of Mines and Geology, 2025. https://doi.org/10.59691/cqib1687.

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The Quaternary Fault Map identifies faults that demonstrate evidence of earthquake surface ruptures based on lidar data, geomorphic and topographic analyses, field checks, and, when available, published geologic maps. Faults are considered potentially seismically active and hazardous if fault activity produced coseismic surface deformation during an earthquake, typically expressed as fault scarps, within the Quaternary period (past 2.6 million years). All Quaternary faults in Deer Lodge County have a predominantly normal sense of slip and accommodate continental extension, associated with the Northern Rockies Basin and Range.
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Zheng. L52044 Effects of Operating Practice on Crack Dormancy and Growth. Pipeline Research Council International, Inc. (PRCI), 2005. http://dx.doi.org/10.55274/r0011334.

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This report describes the output of two phases of the research contract on �Effects of Operating Practice on SCC Crack Growth�, GRI-05/8668, submitted to PRCI in August 2002 (Phase I) and in July 2003 (Phase II). The objective of the first phase of the work was to identify, through literature survey, a correlation model that relates the crack growth rate in low-pH or in high-pH environments to the deformation rate of the line pipe steel. The objective of the second phase of the project was to experimentally validate the correlation model(s) identified in Phase I. The ultimate goal of this work is to define the critical loading condit ions necessary for SCC so that operating practices can be assessed for the purpose of eventual avoidance of SCC. It is also hoped that such a deformation-rate-based model can provide insight for understanding the transition between �active� and �inactive� (or dormant) states of the cracking that is often observed in laboratory SCC tests. Understanding the causes for dormancy of stress corrosion cracks and the mechanism(s) of crack reactivation has significant practical implications. Service life is extended if conditions of dormancy can be maintained and conditions of growth or reactivation can be avoided.
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MIlls, Stephanie E. The Intersection of Framework Geology and Mineral Potential Assessment in the Gold Hill Mining District. Utah Geological Survey, 2025. https://doi.org/10.34191/ss-175.

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The Gold Hill mining district (western Tooele County, Utah) was active from the late 1800s to the mid-1900s and is Utah’s leading historical producer of tungsten and arsenic. The district was also a past producer of other base and precious metals such as lead and silver. In the modern era of intense focus on domestic sources for critical minerals, the historical tungsten and arsenic production in Gold Hill stimulated renewed research interest in this district. The multi-generational geological history of the district includes Cordilleran hinterland Paleozoic bedrock of carbonate shelf to basinal facies that underwent Jurassic contractional deformation and was subsequently dismembered through extensional deformation during the Cenozoic. Two large pulses of magmatism are recognized in the district: a Jurassic quartz monzonite pluton and an Eocene granite stock. Three distinct metallogenic events have been defined: (1) Jurassic skarn, replacement, and vein deposits associated with pluton emplacement; (2) Eocene skarn and vein deposits associated with stock emplacement; and (3) Miocene low-sulfidation epithermal deposits. Many other deposit types, such as sediment-hosted gold, have also been exploration targets within the district. This study utilizes new field observations and new geochemical data supplemented by historical exploration documents plus geochemical and geophysical data from previous minerals exploration. A modern mineral system framework is applied to understand the interaction between the geological history of the district and the complex multi-generational mineralization.
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Kuksenova, L. I., and V. I. Savenko. THE INFLUENCE OF THE LUBRICATING MEDIUM AND ITS SURFACE-ACTIVE COMPONENTS ON THE FORMATION OF THE STRUCTURAL STATE OF THE DEFORMATION ZONE AND THE KINETICS OF DESTRUCTION DURING FRICTION OF METAL TRIBO-JOINTS. DOI CODE, 2023. http://dx.doi.org/10.18411/vntr2023-170-2.

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Robert, Gillian. PR-420-153722-R01 Pipeline Right-of-Way Ground Movement Monitoring from InSAR. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011463.

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Longwall mining induces large surface motion that may impact active pipelines. Typical remediation for longwall mining involves shutting down and exposing the pipeline. The use of InSAR has the potential to provide accurate measurements confirming the expected ground movement that will occur with the mining operations. Used correctly, with an appropriate survey design, InSAR can provide extremely high densities of ground movement over time. Exploiting the wide-area capabilities of InSAR could become an important part of integrity management for pipelines where longwall mining is a consideration. InSAR surveys are well suited to the observation of spatially and temporally smooth movements. These movements can be very small (millimetres in months) or larger in areal extent and movement. We have previously shown the ground movement (of 9.8 ft in 12 years) along a pipeline associated with an enhance oil recovery operation. This work examines some of the design considerations necessary to observe fast, large scale deformation with InSAR. This is accomplished through modelling and through the examination of data captured over a pipeline/longwall mine in Pennsylvania. The qualitative description of the passage of the miner is very good. The local ground conditions in Pennsylvania make a more thorough examination of the ground movement available from SAR less accurate than it would be in regions better suited to InSAR measurements (for instance Wyoming).
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Olsen and Wilson. L52145 Geomechanical Analysis and Design Considerations for Thin-Bedded Salt Caverns. Pipeline Research Council International, Inc. (PRCI), 2005. http://dx.doi.org/10.55274/r0011349.

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he bedded salt formations located throughout the United States are layered and interspersed with non-salt materials such as anhydrite, shale, dolomite and limestone. The salt layers often contain significant impurities. GRI and DOE have initialized this research proposal in order to increase the gas storage capabilities by providing operators with improved geotechnical design and operating guidelines for thin bedded salt caverns. Terralog has summarized the geologic conditions, pressure conditions and critical design factors that may lead to: Fracture in heterogeneous materials; Differential deformation and bedding plane slip; Propagation of damage around single and multiple cavern; Improved design recommendations for single and multiple cavern configurations in various bedded salt environments. The existing caverns within both the Permian Basin Complex and the Michigan and Appalachian Basins are normally found between 300 m to 1,000 m (1,000 ft to 3,300 ft) depth depending on local geology and salt dissolution depth. Currently, active cavern operations are found in the Midland and Anadarko Basins within the Permian Basin Complex and in the Appalachian and Michigan Basins. The Palo Duro and Delaware Basins within the Permian Basin Complex also offer salt cavern development potential. Terralog developed a number of numerical models for caverns located in thin bedded salt. A modified creep viscoplastic model has been developed and implemented in Flac3D to simulate the response of salt at the Permian, Michigan and Appalachian Basins. The formulation of the viscoplastic salt model, which is based on an empirical creep law developed for Waste Isolation Pilot Plant (WIPP) Program, is combined with the Drucker-Prager model to include the formation of damage and failure. The Permian salt lab test data provided by Pfeifle et al. 1983, are used to validate the assumptions made in the material model development. For the actual cavern simulations two baseline models are developed for single and multiple caverns, respectively. Different parameters that affect damage propagation and deformation of salt cavern, such as cavern pressure, operating conditions, cavern height/diameter ratio, overburden stiffness and roof thickness are analyzed and the respective results summarized. For multiple horizontal caverns numerical models are developed to determine the cavern interaction and the minimum safe center to center distance. A step by step methodology for operators to assess critical cavern design parameters for thin bedded salt formations is also presented.
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Ardalan, Hamed. Analysis of Landslides and Slopes Stabilized Using One Row of Piles. Deep Foundations Institute, 2013. http://dx.doi.org/10.37308/cpf-2012-land-1.

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The use of piles to stabilize active landslides or to prevent instability in currently stable slopes has become one of the most important innovative slope reinforcement techniques over the last few decades. Piles have been used successfully in many situations in order to stabilize slopes or to improve slope stability, and numerous methods have been developed for the analysis of piled slopes (Ito et al., 1981; Poulos, 1995; Chen and Poulos, 1997; Zeng and Liang, 2002; Won et al., 2005). The piles used in slope stabilization are usually subjected to lateral force through horizontal movements of the surrounding soil; hence they are considered to be passive piles. The interaction behavior between the piles and the soil is a complicated phenomenon due to its 3-dimensional nature and can be influenced by many factors, such as the characteristics of deformation and the strength parameters of both the pile and the soil. The interaction among piles installed in a slope is complex and depends on the pile and soil strength and stiffness properties, the length of the pile that is embedded in unstable (sliding) and stable soil layers, and the center-to-center pile spacing (S) in a row. Furthermore, the earth pressures applied to the piles are highly dependent upon the relative movement of the soil and the piles. The characterization of the problem of landslides and the use of piles to improve the stability of such slopes requires a better understanding of the integrated effect of laterally loaded pile behavior and the soil-pile-interaction above the sliding surface. Therefore, a representative model for the soil-pile interaction above the failure surface is required to reflect and describe the actual distribution of the mobilized soil driving force along that particular portion of the pile. In addition, the installation of a closely spaced pile row would create an interaction effect (group action) among adjacent piles not only below but also above the slip surface.
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