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Relevant bibliographies by topics / Dams – Foundations

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Academic literature on the topic 'Dams – Foundations'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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Journal articles on the topic "Dams – Foundations"

1

Zhang, Liaojun, Tianxiao Ma, Hanyun Zhang, and Dongsheng Chen. "Dynamic Stability Discrimination Method for Concrete Dam under Complex Geological Conditions." Mathematical Problems in Engineering 2019 (December 19, 2019): 1–16. http://dx.doi.org/10.1155/2019/3702712.

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The instability of dams will bring immeasurable personal and property losses to the downstream, so it has always been a trendy topic worthy of investigation. Currently, the rigid body limit equilibrium method is the most commonly used method for the dynamic stability analysis of dams. However, under the action of earthquakes, the instability of the integral dam-foundation system threatens the safety of the dams and is of great concern. In this paper, a stability analysis method that can reflect the complex geological structural forms of dam foundations is proposed in this paper. The advantages are that this method deals with the difficulty in assuming sliding surfaces and the lack of quantitative criteria for the dynamic instability analysis of dams with complex geological structural forms of dam foundations. In addition, through the method, the sliding channels that may appear in the dam foundations can be automatically searched under random earthquake action, and the safety factors of the dynamic instability of dams be quantitatively obtained. Taking a high RCC gravity dam under construction in China as an example, the proposed method is applied to the three-dimensional finite element model of the dam-foundation system of this dam, and then the dynamic stability calculation is carried out. Through this method, the formation process of the dam foundation’s plastic zone and the failure of sliding channels with different strength reduction coefficients are studied on and analyzed detailedly, and the quantitative acquisition of the safety factors is realized. The results show that the method is reasonable and feasible, and helps provide a new idea and method for the dynamic stability analysis of dams.

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Karlson, A. A. "Horizontal displacements of rock foundations of dams." Hydrotechnical Construction 21, no. 2 (February 1987): 100–104. http://dx.doi.org/10.1007/bf01424913.

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Park, DongSoon, and Tadahiro Kishida. "Seismic Response of Embankment Dams Based on Recorded Strong-Motion Data in Japan." Earthquake Spectra 35, no. 2 (May 2019): 955–76. http://dx.doi.org/10.1193/042918eqs107m.

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It is important to investigate strong-motion time series recorded at dams to understand their complex seismic responses. This paper develops a strong-motion database recorded at existing embankment dams and analyzes correlations between dam dynamic responses and ground-motion parameters. The Japan Commission on Large Dams database used here includes 190 recordings at the crests and foundations of 60 dams during 54 earthquakes from 1978 to 2012. Seismic amplifications and fundamental periods from recorded time series were computed and examined by correlation with shaking intensities and dam geometries. The peak ground acceleration (PGA) at the dam crest increases as the PGA at the foundation bedrock increases, but their ratio gradually decreases. The fundamental period broadly increases with the dam height and PGA at the foundation bedrock. The nonlinear dam response becomes more apparent as the PGA at the foundation bedrock becomes >0.2 g. The prediction models of these correlations are proposed for estimating the seismic response of embankment dams, which can inform the preliminary design stage.

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Yamaguchi, Y., and N. Matsumoto. "Permeability evaluation of soft-rock foundations for dams." Proceedings of the Institution of Civil Engineers - Ground Improvement 3, no. 3 (July 1999): 111–17. http://dx.doi.org/10.1680/gi.1999.030302.

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Gu, Hao, Zhongru Wu, Xiaofei Huang, and Jintao Song. "Zoning Modulus Inversion Method for Concrete Dams Based on Chaos Genetic Optimization Algorithm." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/817241.

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For dams and rock foundations of ages, the actual mechanical parameters sometimes differed from the design and the experimental values. Therefore, it is necessary to carry out the inversion analysis on main physical and mechanical parameters of dams and rock foundations. However, only the integrated deformation modulus can be inversed by utilizing the conventional inversion method, and it does not meet the actual situation. Therefore, a new method is developed in this paper to inverse the actual initial zoning deformation modulus and to determine the inversion objective function for the actual zoning deformation modulus, based on the dam displacement measured data and finite element calculation results. Furthermore, based on the chaos genetic optimization algorithm, the inversion method for zoning deformation modulus of dam, dam foundation and, reservoir basin is proposed. Combined with the project case, the feasibility and validity of the proposed method are verified.

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YAMAGUCHI, Yoshikazu, and Noboru OKABE. "Deformability Evaluation of Soft Rock Foundations for Dams Considering." Journal of the Japan Society of Engineering Geology 41, no. 3 (2000): 141–49. http://dx.doi.org/10.5110/jjseg.41.141.

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Kalustyan, �. S. "Lessons from failures of concrete dams on rock foundations." Hydrotechnical Construction 29, no. 2 (February 1995): 77–81. http://dx.doi.org/10.1007/bf01545000.

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Mgalobelov, Yu B. "On the mating between concrete dams and rock foundations." Hydrotechnical Construction 32, no. 8 (August 1998): 452–58. http://dx.doi.org/10.1007/bf02905979.

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9

Bretas, Eduardo M., José V. Lemos, and Paulo B. Lourenço. "Hydromechanical Analysis of Masonry Gravity Dams and their Foundations." Rock Mechanics and Rock Engineering 46, no. 2 (September 7, 2012): 327–39. http://dx.doi.org/10.1007/s00603-012-0305-3.

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Huang, Bingzhao, and Shengping Gu. "Design of Small, Hard-Shell Overflow Dams on Compressible Foundations." Journal of Energy Engineering 124, no. 1 (April 1998): 20–32. http://dx.doi.org/10.1061/(asce)0733-9402(1998)124:1(20).

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Dissertations / Theses on the topic "Dams – Foundations"

1

Boughoufalah, Mohamed. "Earthquake input mechanisms for dam-foundation interaction." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63932.

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Soliday, Stanley Jr. "Limits of limit equilibrium and finite element techniques applied to cracked debris dams on collapsing foundations." PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/4428.

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Limits of slope stability, limit equilibrium methods, and of the finite element code FEADAM are reached in the application of these methods to the problem of cracked dams constructed on collapsing soils.

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Birch, Kenneth J. "An investigation into increasing the interface strength of concrete dams on rock foundations by grouting." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21278.pdf.

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Oliveira, Antonio Gilberto Simões de. "Análise da eficácia dos dispositivos de vedação e drenagem utilizados em fundações permeáveis de barragens de terra." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-13042010-091918/.

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A construção de barragens de terra sobre formações geológicas permeáveis constitui um dos mais sérios desafios da engenharia de barragens. Neste tipo de projeto, as principais variáveis que devem ser analisadas são a vazão, o gradiente de saída e a subpressão, todas decorrentes da percolação de água pela fundação. Este trabalho apresenta um estudo acerca da eficácia dos dispositivos de controle da percolação a partir de análises paramétricas realizadas em uma barragem típica utilizando o método dos elementos finitos através do programa SEEP/W. Nestas análises foram variadas as características dos dispositivos e a anisotropia hidráulica do maciço de fundação. Verificou-se que a trincheira de vedação parcial é extremamente ineficaz, que o tapete impermeável à montante apresenta cerca de 60% de eficácia para relações entre o comprimento do tapete e a largura da base da barragem da ordem de 1,70 e que a trincheira de vedação total associada aos dispositivos de drenagem constitui a solução mais eficaz no controle das variáveis vazão, gradiente de saída e subpressão.
The construction of earth dams on pervious geologic formations constitutes one of the most serious problems of the engineering of dams. In this type of project, the main variables that must be analyzed are the discharge, the exit gradient and the uplift pressure, all decurrent ones of the water seepage for the foundation. This work presents a study on the effectiveness of devices of control of the seepage from parametric analyses carried through in a typical dam using the method of the finite elements through program SEEP/W. In these analyses the characteristics of the devices and the hydraulic anisotropy of the foundation mass had been varied. It was verified that the cut-off trench of partial is extremely inefficacious, that the impermeable blanket to the sum presents about 60% of effectiveness for relations between the blanket length and the width of the base of the dam of the order of 1.70 and that the cut-off trench of associated to the drainage devices constitues the solution most effective in the control of the variables discharge, exit gradient and the uplift pressure.

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Coy, Tyler K. "Laboratory Modeling of Erosion Potential in Dam Foundations Due to Foundation Voids." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/3899.

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Earthen dams and levees create high gradients and increased hydraulic pressures in the underlying soil, which can lead to erosion and other challenges. Karst formations and other defects such as cracks in the foundation and/or abutments can lead to failure mechanisms such as internal erosion. Generally these voids or cracks are filled with soil, but due to the increased pressures and gradients that dams and levees create, the original soil is pushed out, thus creating a void that acts as a conduit for more soil to follow. Different soils will erode at different rates and some even create a natural filter, preventing further erosion from occurring, but due to these increased gradients and the cyclic changes that can occur throughout the seasons these filters can be broken down, allowing for erosion to continue and potentially lead to complete failure of the structure unless certain reparatory measures are taken. In the lab we have simulated different conditions that exist in the field and the results of testing a variety of soils can be found in this paper.

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Chandrashaker, Rajagopalan Carleton University Dissertation Engineering Civil. "Seismic analysis of gravity dam-reservoir-foundation system using an effective hybrid technique." Ottawa, 1992.

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Wästlund, Dag. "Progressive failure research on foundation surface of the Longtan gravity dam." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-161213.

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The most common failure of concrete gravity dams is sliding along the foundation surface. This thesis studies progressive failure of the Longtan dam on the upper Hongshuie river in china.Two methods are used in this thesis; the Safety Reserve Factor (SRF) method and the Overload method. The SRF-method is used as a tool to study sliding failure along the foundation weak layer of the Longtan dam. Strength reduction coefficients decrease the cohesion and friction angle values for the weak layer of the foundation. Simulations with reduced shear strength parameter values gives information about the development of the plastic zone. The ultimate bearing resistance and the failure path along the foundation are obtained. The safety reserve coefficient is established through the strength reduction coefficients, when the plastic zone of the foundation is totally coalescent. To analyse the development of the plastic zone along the dam foundation with the strength reserve method, the commercial finite element software MSC.Marc is used. The results of the Safety Reserve Factor method (SRF) show that the failure of the dam is highly related to the strength of the interface between the dam and rock foundation. The strength reserve factor is determined to 2.4. The Overload method gives a visual deformation shape of the dam structure and pressure load at the moment of failure.
Dammar har används i mer än 5000 år (Yang et al. 1999) och är fortfarande en viktig källa för energiutvinning. Det största antalet dammar finns i Kina och man tror att det finns över 80,000 dammar i landet (Shapiro 2001). En ökning av dammars kapacitet och antal sker, vilket resulterat i ett behov av bättre sätt för att utvärdera säkerhetsparametrar som betongkvalité, styvhet och homogenitet av bergmassa. Simuleringar av dammkonstruktioner kan ge värdefull information om dessa parametrar och kan därigenom bidra till att förbättra en damms stabilitet och sänka konstruktionskostnader. I det här examensarbetet utvärderas och modelleras Longtan dammen i övre Hongshui floden i Kina. Den vanligaste orsaken till haveri av betongdammar är glidning mellan betonglager och bergmassan. I den här rapporten simuleras ett svagare lager mellan betong och bergmassa och utvecklingen av kontaktbrottsvägen visualiseras och utvärderas med progressiva haveri metoden. Det svagare lagrets hållfasthetskoefficienter; friktionsvinkel och kohesion, reduceras för att analysera utbredningen av den plastiska zonen. Resultaten visar att en överskridning av draghållfastheten för betong börjar vid dammens häl och att kompressionsbristningsgränsen överskrids vid dammens tå när hållfasthetskoefficienterna reduceras. Säkerhetsreservskoefficienten för Longtan dammen erhålls då gränsytan mellan betong och berg är helt plastisk. För att analysera utbredningen av den plastiska zonen längs med dammfundamentet med progressiva haveri metoden används den kommersiella finita element mjukvaran MSC.Marc. Resultaten från säkerhetskoefficientfaktormetoden visar att ett haveri av gravitations dammar är i hög grad relaterad till hållfastheten mellan betongen och bergets gränsyta. Säkerhetskoefficientfaktorn bestäms till 2.4. För att bestämma Longtan dammens maximala vattenbelastningskapacitet används Överbelastningsmetoden. Det maximala vattentryck som Longtan dammen klarar av utan att haverera simuleras med hjälp av en vätska vars densitet ökas mellan modellkörningar. Dammens förskjutning når till sist en punkt där den ökar kraftigt och dammens mutationsdeformationstillstånd har uppnåtts. En visuell deformationsbeskrivning av dammen ges genom modellkörningar och överbelastningsfaktorn bestäms.

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8

Divoux, Patrick. "Modélisation du comportement hydro-mécanique des discontinuités dans les structures et les fondations rocheuses : application aux barrages en béton." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10192.

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Les incidents et les accidents survenus a des barrages en beton, ainsi que les resultats d'auscultation, ont montre que leur stabilite depend tres largement du comportement mecanique des zones les plus faibles de l'ensemble vallee-barrage. Localises au niveau des discontinuites dans la structure et dans le rocher, ces points faibles sont principalement les failles des zones d'appui, les reprises de betonnage dans le barrage, le contact beton-rocher au niveau de la fondation et les joints de plots du barrage. Nous avons travaille a la modelisation du comportement de ces zones avec les elements finis particuliers que sont les elements d'interface. Un grande partie de ce rapport est consacree a la connaissance du comportement de ces elements, aux hypotheses emises lors de leur formulation et aux difficultes numeriques associees a la prise en compte de comportements fortement non-lineaires. Le mode de construction, les techniques de clavage et de drainage des barrages en beton en font des ouvrages particuliers dont la modelisation est rendue difficile avec les codes aux elements finis classiques. Le code de calcul gefdyn a ete le support du developpement d'outils et de methodes d'analyse du comportement des barrages en beton et des fondations rocheuses. Appliquees aux barrages de puyvalador et de puylaurent, ces methodes permettent de prendre en compte les principales non-linearites du comportement des ouvrages et de mieux comprendre leur fonctionnement. Ces calculs fournissent des renseignements exploitables sur le plan pratique et sur le plan theorique.

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Haeri, Seyed Mohsen. "Response of earth and rockfill dams to strong earthquakes including dam-foundation interaction effects." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47094.

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Sharon, Diana M. "Patterns of destiny : narrative structures of foundation and doom in the Hebrew Bible /." Winona Lake (Ind.) : Eisenbrauns, 2002. http://catalogue.bnf.fr/ark:/12148/cb39064532t.

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Books on the topic "Dams – Foundations"

1

Foundations, USSD Committee on. Aging of dam foundations. Denver, CO: U.S. Society on Dams, 2001.

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Schall, Forrest R. Foundation treatment using pneumatically applied concrete. Denver, Colo: Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation, 1986.

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United States. Bureau of Reclamation. Embankment dams. Denver, Colo: U.S. Dept. of the Interior, Bureau of Reclamation, Denver Office, 1989.

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United States. Bureau of Reclamation. Embankment dams. Denver, Colo: U.S. Dept. of the Interior, Bureau of Reclamation, Engineering and Research Center, 1987.

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United States. Bureau of Reclamation. Embankment dams. Denver, Colo: U.S. Dept. of the Interior, Bureau of Reclamation, Denver Office, 1990.

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Reclamation, United States Bureau of. Embankment dams. Denver, Colo: U.S. Dept. of the Interior, Bureau of Reclamation, Assistant Commissioner, Engineering and Research, 1992.

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United States. Bureau of Reclamation. Embankment dams. Denver, Colo: U.S. Dept. of the Interior, Bureau of Reclamation, Denver Office, 1991.

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8

Foundation engineering. 2nd ed. Malabar, Fla: R.E. Krieger Pub. Co., 1987.

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9

Workshop on Investigations and Treatment for Dam Foundations (1992 Dehra Dūn, India). Workshop on Investigations and Treatment for Dam Foundations. New Delhi: Central Soil and Materials Research Station, 1992.

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International, Workshop on Arch Dams (1987 Coimbra Portugal). Arch dams: International Workshop on Arch Dams, Coimbra, 5-9 April 1987. Rotterdam: A.A. Balkema, 1990.

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Book chapters on the topic "Dams – Foundations"

1

Wittke, Walter. "Foundations of Gravity and Arch Dams." In Rock Mechanics, 534–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-88109-1_14.

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Izrailovich, Bronstein Vadim, Vainberg Alexander Isaakovich, Gaziev Erast Grigorievich, Landau Yuri Alexandrovich, Mgalobelov Yuri Borisovich, and Ju B. Mgalobelov. "Interaction of concrete dams with the foundation and improvement of foundations." In Concrete Gravity and Arch Dams on Rock Foundation, 147–92. Boca Raton : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/b22629-5.

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Riemer, Wynfrith, and rer nat. "Investigation and Treatment of Problematic Foundations for Storage Dams: Some Experience." In Engineering Geology for Society and Territory - Volume 6, 773–77. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09060-3_138.

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Izrailovich, Bronstein Vadim, Vainberg Alexander Isaakovich, Gaziev Erast Grigorievich, Landau Yuri Alexandrovich, Mgalobelov Yuri Borisovich, and Ju B. Mgalobelov. "Rock foundation of dams." In Concrete Gravity and Arch Dams on Rock Foundation, 70–146. Boca Raton : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/b22629-4.

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Beeching, Kate, and Annie Fontaine Lewis. "Dans le passé." In Foundations French 2, 41–54. London: Macmillan Education UK, 2008. http://dx.doi.org/10.1007/978-0-230-36659-6_4.

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Izrailovich, Bronstein Vadim, Vainberg Alexander Isaakovich, Gaziev Erast Grigorievich, Landau Yuri Alexandrovich, Mgalobelov Yuri Borisovich, and Ju B. Mgalobelov. "Arch dams." In Concrete Gravity and Arch Dams on Rock Foundation, 386–456. Boca Raton : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/b22629-9.

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Izrailovich, Bronstein Vadim, Vainberg Alexander Isaakovich, Gaziev Erast Grigorievich, Landau Yuri Alexandrovich, Mgalobelov Yuri Borisovich, and Ju B. Mgalobelov. "Gravity dams." In Concrete Gravity and Arch Dams on Rock Foundation, 322–85. Boca Raton : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/b22629-8.

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Portine, Henri. "Subjectivité et sujet objectivé dans l’énonciation." In Foundations of Semiotics, 303. Amsterdam: John Benjamins Publishing Company, 1989. http://dx.doi.org/10.1075/fos.18.27por.

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Izrailovich, Bronstein Vadim, Vainberg Alexander Isaakovich, Gaziev Erast Grigorievich, Landau Yuri Alexandrovich, Mgalobelov Yuri Borisovich, and Ju B. Mgalobelov. "Analysis of concrete dams." In Concrete Gravity and Arch Dams on Rock Foundation, 209–321. Boca Raton : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/b22629-7.

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Deremble, Jean-Paul. "Les marques de l’énonciation dans le vitrail chartrain." In Foundations of Semiotics, 519. Amsterdam: John Benjamins Publishing Company, 1989. http://dx.doi.org/10.1075/fos.20.44der.

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Conference papers on the topic "Dams – Foundations"

1

Llopis, Jose L., Michael K. Sharp, Dwain K. Butler, and Donald E. Yule. "Applied geophysical techniques to evaluate earth dams and foundations." In Nondestructive Evaluation of Aging Infrastructure, edited by Soheil Nazarian and Larry D. Olson. SPIE, 1995. http://dx.doi.org/10.1117/12.209402.

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Aminjavaheri, Amirreza, and Mojtaba Karami. "Application of Shear Keys to Improve the Slope Stability of Earth Dams on Weak Alluvial Foundations." In Geo-Shanghai 2014. Reston, VA: American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413388.067.

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Amini, AliReza, Mohammad Hossein Motamedi, Mohsen Ghaemian, Adolfo Santini, and Nicola Moraci. "The Impact of Dam-Reservoir-Foundation Interaction on Nonlinear Response of Concrete Gravity Dams." In 2008 SEISMIC ENGINEERING CONFERENCE: Commemorating the 1908 Messina and Reggio Calabria Earthquake. AIP, 2008. http://dx.doi.org/10.1063/1.2963887.

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Fernando, Palamandadige, Meng Zhang, Zhijian Pei, and Adam Owens. "Rotary Ultrasonic Machining of Basalt Rock Using Compressed Air As Coolant: A Study on Edge Chipping and Surface Roughness." In ASME 2019 14th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/msec2019-2768.

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Abstract The aim of this study is to investigate the edge chipping and surface roughness of basalt rock processed by rotary ultrasonic machining (RUM) using compressed air as coolant. Basalt rock is commonly used as a building and construction material for foundations and dams, as well as in architectural designs such as constructing thin veneers and facades. Rotary ultrasonic machining, a hybrid process of grinding and ultrasonic machining, is employed to drill difficult-to-machine materials such as ceramics, composites, titanium alloys, stainless steel, etc. RUM has many advantages over conventional machining processes such as twist drilling. These advantages include lower cutting force, higher surface quality, lower tool wear, etc. This paper is the first in literature to report a study on edge chipping and surface roughness on RUM of basalt rock using cold compressed air as coolant. The effects of three input variables (tool rotation speed, feedrate, and ultrasonic power) on cutting force, torque, edge chipping, and surface roughness were studied. Experimental results obtained from this investigation show that RUM with cold air as the coolant has the capability to machine holes in basalt rock with a surface roughness of less than 3.5 μm without severe edge chipping.

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Lo, E., and L. Pelecanos. "Building dams on rock or soft soil – frequency-domain analysis of dynamic dam-foundation interaction." In 20th Biennial Conference of the British Dam Society. ICE Publishing, 2018. http://dx.doi.org/10.1680/sdar.64119.113.

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Mota, R., and M. J. Coelho. "Crosshole Seismic Tomography to Assess Rock Mass Foundation of Dams - Alto Ceira II Dam Case Study." In 24th European Meeting of Environmental and Engineering Geophysics. Netherlands: EAGE Publications BV, 2018. http://dx.doi.org/10.3997/2214-4609.201802528.

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Tupayachi Beisaga, José Luis, and Emilio A. Hernández Chaupis. "Protection Works of Crossings River in the Camisea Pipeline Transport System (STD)." In ASME 2013 International Pipeline Geotechnical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ipg2013-1909.

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The experience gained during the operation and maintenance stages of the Camisea pipeline transportation system (STD) in Peru, crossing from the Tropical jungle in the Cusco region to the coast, in Lima city, has enabled us to develop and apply techniques in construction and maintenance works focused on controlling of the vertical undermining of riverbeds and the erosion of margins at river crossings and creeks crossed by the pipeline carrying NG and NGL. According to the above, a technical assessment study was conducted of the crosses rivers and creeks that have high priority of the Camisea pipeline path, comprising — among other disciplines — hydraulic and undermining analysis, as well as an hydrologic and geo-morphological evaluation and other issues regarding general geology and geo-techniques at each crossing site. A work program was developed using the information obtained in the three sectors travelled by the (STD) in order to develop and complement works at the crossings of rivers and valleys aiming to protect the integrity of the pipeline from erosion produced by major and extraordinary floods in riverbeds and alluvial slides in narrow valleys, by means of confinement and sedimentation works. The jobs performed in rainforest, mountain and coastal terrain crossed by the pipeline considered different river morphology types — being the most common the straight, gravel braided and curved river travels — and regimes in both flow speed and width of the riverbed. From the topographic follow-up and monitoring stage on — before and after the rain season — at crossings beneath the riverbeds, it was determined that the deterioration process affecting the crossing stripe corresponds to erosion consisting in the alteration of the watercourse banks that affects the piping foundations. The works are completed considering the type of resources available at the site of the river crossing — i. e., the engineering is particular to each sector, and designing is performed upon available materials in the area. The most utilized works at river and creeks crossings on the Camisea piping system are as follows: i) protection of riverbeds and creeks slopes using gabion mesh and pads; ii) sedimentation systems on gabion mesh; iii) Energy dissipation devices at creeks crossings; iv) rip-rap–type armoring of riverbeds; v) confinement check dams; vi) marginal protection dikes; vii) marginal protection rock fill dams; viii) protection and sedimentation breakwaters, among others.

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8

Chraibi, A. F., and A. Nombré. "Comoe Dam Lateritic Foundation Treatment." In Grouting 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480786.003.

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9

Zhongkai, Cheng, Ding Yuemei, Huang Yaoying, and Li Xiuwen. "Concrete Arch Dam's Foundation Interception Range Analysis." In 2013 Fourth International Conference on Digital Manufacturing & Automation (ICDMA). IEEE, 2013. http://dx.doi.org/10.1109/icdma.2013.86.

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10

Hall, Ron F., and Paul Krumm. "Remedial Foundation Grouting of Dworshak Dam." In Waterpower Conference 1999. Reston, VA: American Society of Civil Engineers, 1999. http://dx.doi.org/10.1061/40440(1999)20.

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Reports on the topic "Dams – Foundations"

1

Soliday, Stanley. Limits of limit equilibrium and finite element techniques applied to cracked debris dams on collapsing foundations. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.6306.

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2

Eckerlin, Richard D., and Dennis Larson. Wynoochee Dam Foundation Report. Fort Belvoir, VA: Defense Technical Information Center, January 1988. http://dx.doi.org/10.21236/ada207425.

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3

ARMY ENGINEER DISTRICT VICKSBURG MS. Lock and Dam No. 4, Red River Waterway, Louisiana. Foundation Report. Fort Belvoir, VA: Defense Technical Information Center, March 1996. http://dx.doi.org/10.21236/ada315881.

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4

Eckerlin, Richard D., and Edward T. Bailey. Chief Joseph Dam, Columbia River, Washington, Additional Units and Structural Modification Foundation Report. Fort Belvoir, VA: Defense Technical Information Center, January 1988. http://dx.doi.org/10.21236/ada204685.

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5

ARMY ENGINEER DISTRICT VICKSBURG MS. Joe D. Waggonner, Jr. Lock and Dam Red River Waterway, Louisiana. Foundation Report. Fort Belvoir, VA: Defense Technical Information Center, March 1996. http://dx.doi.org/10.21236/ada315643.

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6

Llopis, Jose L., Michael K. Sharp, and Enrique E. Matheu. In Situ Geophysical Surveys for Estimation of Foundation Rock Properties, Concrete Gravity Section, Folsom Dam. Fort Belvoir, VA: Defense Technical Information Center, August 2005. http://dx.doi.org/10.21236/ada438857.

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7

Glynn, M. E., Johannes L. Wibowo, James B. Warriner, and Glenn A. Nicholson. Determination of Rock Mass Rating and Deformation Moduli - 14 Cross Sections of Portugues Dam Foundation - December 1999. Fort Belvoir, VA: Defense Technical Information Center, December 2000. http://dx.doi.org/10.21236/ada392299.

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