Log in

Relevant bibliographies by topics / Pre-grouting / Journal articles

To see the other types of publications on this topic, follow the link: Pre-grouting.

Journal articles on the topic 'Pre-grouting'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Pre-grouting.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Kong, Cun Zhi, Xiang Feng Xu, Jia Long Sun, Guang Zhi Qi, and Yuan Cao. "Application of Impact-Echo Method in Grouting Inspection in Ducts inside Prefabricated Box Girder." Applied Mechanics and Materials 505-506 (January 2014): 24–27. http://dx.doi.org/10.4028/www.scientific.net/amm.505-506.24.

Full text

Abstract:

Based on basic principle of detection using impact-echo method, in combination with urgent demand of grouting quality inspection in ducts inside post tensioning type prefabricated box girder in bridge engineering, impact-echo method has been used for non-destructive detection of grouting compactness in pre-stressed ducts inside prefabricated box girder. Verification by beating away measuring points shows that the impact-echo method can accurately locate metal corrugated pipes and qualitatively judge grouting compactness inside prefabricated box girder ducts, to allow effective inspection of gr

APA, Harvard, Vancouver, ISO, and other styles

2

Wang, Xue Gui, Er Xin Gao, Xian Long Sun, Zhen Yu Hao, and Rong Zheng Zhu. "The Application of Pre-Grouting in the Construction of Vertical Shaft." Advanced Materials Research 402 (November 2011): 643–47. http://dx.doi.org/10.4028/www.scientific.net/amr.402.643.

Full text

Abstract:

The paper introduces the application of surface pre-grouting in the construction of the main coalmine and the auxiliary coalmine of Xuandong No.2 coalmine.The engineering has achieved remarkable results for the grouting into more than 700 meters deep. To the characteristics of shaft deep and aquifer centralized, the practical for sealing and grouting scheme has been introduced in this paper. According to the high water pressure in the special aquifer, the special measure of increasing grouting pressure and increasing grouting quantity has been taken and which ensured the grouting effect. The p

APA, Harvard, Vancouver, ISO, and other styles

3

Sun, Yuantian, Guichen Li, Junfei Zhang, Junbo Sun, Jiandong Huang, and Reza Taherdangkoo. "New Insights of Grouting in Coal Mass: From Small-Scale Experiments to Microstructures." Sustainability 13, no. 16 (2021): 9315. http://dx.doi.org/10.3390/su13169315.

Full text

Abstract:

Pre-grouting as an effective means for improving the stability of roadways can reduce maintenance costs and maintain safety in complex mining conditions. In the Guobei coal mine in China, a cement pre-grouting technique was adopted to enhance the overall strength of soft coal mass and provide sufficient support for the roadway. However, there are very limited studies about the effect of grouting on the overall strength of coal in the laboratory. In this paper, based on the field observation of a coal-grout structure after grouting, a series of direct shear tests were conducted on coal and grou

APA, Harvard, Vancouver, ISO, and other styles

4

Li, Chang Chun, and Li Yun Yi. "On Detection Technologies of Pre-Stressed Duct Grouting Fullness." Advanced Materials Research 933 (May 2014): 71–75. http://dx.doi.org/10.4028/www.scientific.net/amr.933.71.

Full text

Abstract:

Aging and deterioration (such as weakening of concrete strength and loss of prestress) of various degree will inevitably happen to prestressed concrete beam in service. In making the prestressed concrete beam, it is of vital importance to ensure that the prestress tension is sufficient, duct grouting is compact enough and concrete pouring is in good quality. Otherwise, structure will deteriorate faster and safety hazard and even bridge collapse may ensue, causing considerable economic losses.

APA, Harvard, Vancouver, ISO, and other styles

5

Kim, Cheehwan. "Pre-reinforcing Grouting a Sand Gravel Layer for Tunnelling." Tunnel and Underground Space 26, no. 6 (2016): 466–74. http://dx.doi.org/10.7474/tus.2016.26.6.466.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Wang, Hai Bo, Peng Ju Lu, and Qi Zong. "Experimental Study on Highway Tunnel Surrounding Rock Reinforced by Small Pipe Pre-Grouting." Advanced Materials Research 250-253 (May 2011): 2617–21. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.2617.

Full text

Abstract:

Small pipe of staggered by length leading-drilling and grouting support technology was adopted for per-reinforcement of Lion-shaped Tunnel typeII rock, cement paste filled into loose rock mass rock fracture for adglutinate broken rock into a integrality, thus enhance the coherence and solidity of rock. Thesis introduced process flow of small pipe drilling grouting, grouting equipment, grouting parameters selection and practical applications. Through tunnel deformation monitoring and analysis, grouting reinforcement has achieved very good effect.

APA, Harvard, Vancouver, ISO, and other styles

7

Zheng, Weihua, Dengwu Wang, Guijin Li, Lin Qin, Kai Luo, and Jinquan Liu. "Optimizing the Grouting Design for Groundwater Inrush Control in Completely Weathered Granite Tunnel: An Experimental and Field Investigation." Sustainability 11, no. 13 (2019): 3636. http://dx.doi.org/10.3390/su11133636.

Full text

Abstract:

Groundwater and mud inrush disaster from completely weathered granite presents a huge difficulty for tunnel construction, which requires the grouting measurement with favorable performance. To propose the optimal material parameters for grouting, numerous tests, including strength, permeability, and anti-washout, were conducted to evaluate the effects of grouting filling ratio (GFR), curing age and water velocity on the grouting effect. The test results show that: (1) The hydraulic property of completely weathered granite can be significantly improved by increasing the grouting volume and curi

APA, Harvard, Vancouver, ISO, and other styles

8

Geng, Tiesuo, Shuanghua Chen, Liuqun Zhao, and Zhe Zhang. "Research on Bonding Performance of Anchorage Caisson Foundation with Different Contact Surfaces and Grouting Bed." Buildings 11, no. 8 (2021): 365. http://dx.doi.org/10.3390/buildings11080365.

Full text

Abstract:

In view of the first domestic offshore suspension bridge with caisson foundation, this paper mainly studies the bonding properties between underwater pre-filled aggregate grouting bed and anchorage caisson foundation. Through the test, the cohesive force of adding ordinary concrete between the anchorage caisson foundation and the grouting bed, the cohesive force of adding paper base asphalt felt between the anchorage caisson foundation and the grouting bed, and the cohesive force of adding geotextile between the anchorage caisson foundation and the grouting bed are measured, respectively. When

APA, Harvard, Vancouver, ISO, and other styles

9

Zhang, Guo-Hua, Yu-Yong Jiao, and Hao Wang. "Outstanding issues in excavation of deep and long rock tunnels: a case study." Canadian Geotechnical Journal 51, no. 9 (2014): 984–94. http://dx.doi.org/10.1139/cgj-2013-0087.

Full text

Abstract:

Excavation of deep and long tunnels faces several distinctive challenges such as unknown geological structures, high groundwater pressure, and high in situ stress, as compared with conventional tunnels. The deep and long Taining tunnel in Fujian Province, South China, was excavated in complex geological settings. This tunnel had to pass through various squeezing fault zones and intensely jointed zones. Large deformations and high-pressure groundwater were frequently encountered during excavation. To predict the potential adverse geological structures, a comprehensive method, which included tun

APA, Harvard, Vancouver, ISO, and other styles

10

Rabaiotti, Carlo, Cornelia Malecki, Mathias Amstad, and Alexander M. Puzrin. "Pre-stressing of soil and structures due to jet grouting." Proceedings of the Institution of Civil Engineers - Geotechnical Engineering 168, no. 4 (2015): 335–47. http://dx.doi.org/10.1680/geng.14.00112.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Xu, Yong Gang, Chang Ji, Shun Hua Zhou, and Huan Le Zhu. "Influence of Strata Pre-Reinforcement on the Tunnel and the Surrounding Strata while Shield Tunnel Crosses Beneath Intercity High-Speed Rail." Applied Mechanics and Materials 303-306 (February 2013): 2859–65. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.2859.

Full text

Abstract:

In view of that the construction period of shield crossing beneath high-speed rail is apt to cause soil deformation and large differential settlement of ballastless track plate and of the long-term implications on the tunnel structure of the train cycle dynamic load in operating period, with the project of shield crossing intercity in Suzhou as example, the paper determines pre-reinforcement method before crossing project, applies numerical simulation to analyze the influence of pre-reinforcement on the tunnel itself and surrounding strata, then derives the rule of pre-reinforcement on reducin

APA, Harvard, Vancouver, ISO, and other styles

12

Wang, Da Sai, and Ai Qing Liu. "Study on the Performance of Full-Length Pre-Stressed Anchor Bolts." Advanced Materials Research 639-640 (January 2013): 765–69. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.765.

Full text

Abstract:

In order to reveal the the performance of full-length pre-stressed anchor bolts, and research the rock pressure behavior law, a combination method of FLAC3D and situ tests were presented, the conclusions were drawn as following: the prestress of full-length pre-stressed anchor bolt was approximately uniform distribution along the slow anchoring section of the rod, while in the fast anchoringthe segment showed a negative exponential or linear form of attenuation, and the bolt axial load was biggest in the neutral point; the neutral point of full-length pre-stressed anchor bolt move to deeper of

APA, Harvard, Vancouver, ISO, and other styles

13

Guo, Bin, Dongdong Chen, Linsheng Huo, and Gangbing Song. "Monitoring of Grouting Compactness in Tendon Duct Using Multi-Sensing Electro-Mechanical Impedance Method." Applied Sciences 10, no. 6 (2020): 2018. http://dx.doi.org/10.3390/app10062018.

Full text

Abstract:

The structural integrity of post-tensioning prestressed concrete structures with tendon ducts highly depends on the grouting quality in construction. This paper proposes a real-time approach to monitoring the grouting compactness in tendon ducts using the multi-sensing electro-mechanical impedance (EMI) method. When Lead Zirconate Titanate (PZT) transducers with different pre-selected dimensions are serially connected and mounted on a structure at distributed locations, each PZT provides unique resonance frequency coupled with the local structural physical property. Therefore, the impedance wi

APA, Harvard, Vancouver, ISO, and other styles

14

Hognestad, Hans‐Olav, and Scott Kieffer. "Pre‐excavation grouting in rock tunneling – Dealing with high groundwater pressures." Geomechanics and Tunnelling 12, no. 2 (2019): 141–46. http://dx.doi.org/10.1002/geot.201800071.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Yang, Chunlai, and Zongmin Wang. "Surface Pre-grouting and Freezing for Shaft Sinking in Aquifer Formations." Mine Water and the Environment 24, no. 4 (2005): 209–12. http://dx.doi.org/10.1007/s10230-005-0097-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Xiao, Zhicheng, Wenke Huang, Kuanghuai Wu, Guihai Nie, Hafiz Muhammad Zahid Hassan, and Bei Hu. "An Experimental Study on Properties of Pre-Coated Aggregates Grouting Asphalt Concrete for Bridge Deck Pavement." Materials 14, no. 18 (2021): 5323. http://dx.doi.org/10.3390/ma14185323.

Full text

Abstract:

Epoxy asphalt concrete, mortar asphalt concrete and Gussasphalt concrete are commonly used types of deck pavement materials in bridge deck pavement engineering. However, achieving the high-temperature stability and anti-fatigue performance of the deck pavement materials is still challenging. In order to reduce the rutting and cracking risks of the asphalt mixture, this paper proposed pre-coated aggregates grouting asphalt concrete (PGAC) for bridge deck pavement. Laboratory tests were conducted to determine the optimum grouting materials and to evaluate the mechanical performances of the PGAC

APA, Harvard, Vancouver, ISO, and other styles

17

Wu, Kui, and Zhushan Shao. "Effects of Pipe Roof Support and Grouting Pre-Reinforcement on the Track Settlement." Advances in Civil Engineering 2018 (December 26, 2018): 1–9. http://dx.doi.org/10.1155/2018/6041305.

Full text

Abstract:

Based on the first shallow tunnel passing below an active railway station in the loess area in China, studies on the tunnel deformation and track settlement during tunneling are performed by using FLAC3D. It is found that, without adopting other reinforcement measures, the maximum track settlement has far exceeded engineering requirements. To reduce deformations induced by the tunneling, the combined presupport technique of the pipe roof and grouting reinforcement is presented and optimal construction parameters are provided. It is concluded that the installation of the pipe roof support plays

APA, Harvard, Vancouver, ISO, and other styles

18

Wang, Kai, Lianguo Wang, and Bo Ren. "Failure Mechanism Analysis and Support Technology for Roadway Tunnel in Fault Fracture Zone: A Case Study." Energies 14, no. 13 (2021): 3767. http://dx.doi.org/10.3390/en14133767.

Full text

Abstract:

This paper introduces a case study on the failure mechanism and support design of a roadway tunnel in the fault fracture zone of the 106 mining area in the Yuandian no.2 coal mine. Based on the on-site geological conditions (in-situ stress test, borehole television imaging, and lithological analysis), the failure mechanism of the roadway tunnel in the fault fracture zone was studied. The test results showed that the high tectonic stress, fractured rock, and poor lithology are the primary reasons for the roadway instability. According to the support principles of grouting reinforcement, pre-rei

APA, Harvard, Vancouver, ISO, and other styles

19

Li, Ran, Dingli Zhang, Peng Wu, Qian Fang, Ao Li, and Liqiang Cao. "Combined Application of Pipe Roof Pre-SUPPORT and Curtain Grouting Pre-Reinforcement in Closely Spaced Large Span Triple Tunnels." Applied Sciences 10, no. 9 (2020): 3186. http://dx.doi.org/10.3390/app10093186.

Full text

Abstract:

The platform of the Badaling Great Wall Underground Station consisted of large span triple tunnels. The triple tunnels passed through several major faults. Based on preliminary in situ monitoring, the interaction behavior among triple tunnels was significantly severe, and the original supports failed to meet the safety requirement. Therefore, pipe roof pre-support (PRPS) and curtain grouting pre-reinforcement (CGPR) were used as the pre-construction techniques. By numerical investigation, the pipe diameter, the arrangement angle of PRPS, and the grouting thickness of CGPR were optimized as 108

APA, Harvard, Vancouver, ISO, and other styles

20

Li, Heng, Enlin Ma, Jinxing Lai, et al. "Tunnelling-Induced Settlement and Treatment Techniques for a Loess Metro in Xi’an." Advances in Civil Engineering 2020 (November 6, 2020): 1–20. http://dx.doi.org/10.1155/2020/1854813.

Full text

Abstract:

Techniques including pre-grouting, long pipe roof, and parameter optimization were employed to ensure the safety of loess metro tunnelling under an existing glass building. Their effects were proved through monitoring the settlement of building and surface during tunnelling. Besides, division of settlement monitoring according to processes, a new method, was conducted to control settlement in time. The highest surface settlement after construction was 16 mm only, meeting the requirement. The result indicates that it is practicable to control the tunnelling settlement strictly in extremely diff

APA, Harvard, Vancouver, ISO, and other styles

21

NOBUTO, Jun, Shin-ichiro MIKAKE, and Makoto NISHIGAKI. "PROPOSAL OF EFFICIENT PRE-EXCAVATION GROUTING CONCEPT FOR DEEP UNDERGROUND ROCK EXCAVATION." Doboku Gakkai Ronbunshuu C 65, no. 4 (2009): 806–21. http://dx.doi.org/10.2208/jscejc.65.806.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Mao, Dawei, Ming Lu, Zhiye Zhao, and Melvin Ng. "Effects of Water Related Factors on Pre-grouting in Hard Rock Tunnelling." Procedia Engineering 165 (2016): 300–307. http://dx.doi.org/10.1016/j.proeng.2016.11.704.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Xiang, Qingming, Shenghui Qi, Jiaxuan Su, Tianshu Yang, and Xuansheng Cheng. "New Method for Testing the Grouting Compactness in Pre-Stressed Concrete Girder." Recent Patents on Engineering 12, no. 1 (2018): 73–81. http://dx.doi.org/10.2174/1872212111666170418122134.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

He, Wen, and Junxing Xiang. "Design and Research of Pre-grouting technology for 1000m scale blind shaft." IOP Conference Series: Earth and Environmental Science 585 (November 4, 2020): 012148. http://dx.doi.org/10.1088/1755-1315/585/1/012148.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Zhang, Run Lai, Li Ming Tang, and Kun Tang. "Analysis on Segment Floating in the Construction of Large-Diameter Crossing-River Shield Tunnel." Applied Mechanics and Materials 724 (January 2015): 17–21. http://dx.doi.org/10.4028/www.scientific.net/amm.724.17.

Full text

Abstract:

Segment floating is a common problem met in the construction of large-diameter crossing-river shield tunnel. The factors affecting segment floating are discussed first and analyzed by numerical simulation, including the properties of grouting material, the speed of shield tunneling, grouting pressure difference, the tunnel longitudinal stiffness, frictional force between segment rings and weight of the supporting system. The simulation results indicate that segment floating will reduce by shortening slurry’s initial solidification time, slowing shielding speed, improving the tunnel longitudina

APA, Harvard, Vancouver, ISO, and other styles

26

Mu, Lin, Zhen Long Huo, and Yong Hui Fan. "Study on the Principle of Tunnel Collapse Treatment and its Application." Advanced Materials Research 378-379 (October 2011): 799–803. http://dx.doi.org/10.4028/www.scientific.net/amr.378-379.799.

Full text

Abstract:

Collapse of crowm broked out with large water gushing at working face during driving tunnel in Ming Ya Zi tunnel’s right tube. According to engineering geology condition and analysis of causes of collapse, double-deck prior ductile grouting reinforcement technique was applied in tunneling surrounding rock consolidation based on the strong pre-support theory.And the result of treatment was successful.Thus,guiding the work of tunnel collapse treatment by strong pre-support theory was proved reasonably and effectively.

APA, Harvard, Vancouver, ISO, and other styles

27

Seo, Hyung-Joon, Hangseok Choi, and In-Mo Lee. "Numerical and experimental investigation of pillar reinforcement with pressurized grouting and pre-stress." Tunnelling and Underground Space Technology 54 (April 2016): 135–44. http://dx.doi.org/10.1016/j.tust.2015.10.018.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Gamil, Yaser, Ismail Bakar, and Kemas Ahmed. "Simulation and Development of Instrumental Setup to Be Used for Cement Grouting of Sand Soil." Emerging Science Journal 1, no. 1 (2017): 16. http://dx.doi.org/10.28991/esj-2017-01112.

Full text

Abstract:

Most of Arab countries areas are occupied with deserts that is covered with sandy soil. Thus, it is necessary to make use of this huge volume of sand to be as construction materials. It is proven that, sand is initially uneven and unstable. It requires pre-modifications of its primer properties in order to be used as construction materials. One of the common techniques is injecting the sand with binders. Many grouting techniques has been implanted to modify or rehabilitate the structure of soil but for sandy soil the methods has not yet been introduced Therefore, this study aimed at developing

APA, Harvard, Vancouver, ISO, and other styles

29

Wang, Xiao Yan, Shi Wei Duan, Xian E. Xu, and Hao Liang Wang. "Application of Pre-Grouting Technique in Yellow River Crossing Tunnel in Eastern Route of South to North Water Transfer Project." Advanced Materials Research 430-432 (January 2012): 1133–36. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1133.

Full text

Abstract:

The yellow river crossing tunnel runs through limestone at a depth of about 70m below the level of yellow river. Since the river water, phreatic pore water in loose Quaternary deposits and karst/fissure water in limestone communicates with each other, pre-grouting technique has to be employed before drilling and blasting excavation of the tunnel.

APA, Harvard, Vancouver, ISO, and other styles

30

Liu, Jian Jun, Ren Cheng Xiao, Fei Yue Xie, and Wei Liu. "Modal Analysis and Fault Diagnosis of Dynamic Machine Foundation under Ambient Excitation." Advanced Materials Research 842 (November 2013): 607–11. http://dx.doi.org/10.4028/www.scientific.net/amr.842.607.

Full text

Abstract:

This paper introduces the modal parameter identification method of a reinforced concrete block foundation under ambient excitation. On this basis, the dynamic characteristics of a stone cutting machine foundation are obtained by modal test under different operating conditions, and test results reveal that the main cause of abnormal vibration lies in lower dynamic stiffness of the whole structure. With the comparison of dynamic response between pre-reinforcement and post-reinforcement, reinforcement effects of high pressure grouting technique and pre-stressed bolt applied to restrain foundation

APA, Harvard, Vancouver, ISO, and other styles

31

Zhan, Feng Lin, and Ping Ye. "Construction Techniques and Mechanism of Pre-Anchoring Fissured Stope Hangingwall by Fully-Grouted Cable Bolts." Applied Mechanics and Materials 580-583 (July 2014): 283–86. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.283.

Full text

Abstract:

The construction techniques and anchoring mechanism of pre-anchoring fissured stope hangingwall of some copper mine in China by fully-grouted cable bolts are explored. The construction stages such as drilling anchor holes, making anchorage cables and cement mortar, grouting, and curing are expounded. A combined action mechanism of pre-anchoring fissured stope hangingwall by fully-grouted cable bolts is presented. The achievements are helpful and beneficial to the design and construction of rock engineering projects which need anchoring reinforcement, such as slopes, tunnels, deep foundation pi

APA, Harvard, Vancouver, ISO, and other styles

32

Jiang, Shu Ai, and An Nan Jiang. "Pre-Grouting Treatment and Flow Numerical Simulation for the Landslide Area of Dalian Metro." Applied Mechanics and Materials 71-78 (July 2011): 2787–91. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.2787.

Full text

Abstract:

The study discusses the simulation analysis based on the modflow software. Generalize body site, zone and boundary conditions of simulation, make a finite element model based on the geology of the Collapse of Lot 110 , Dalian Metro. Determine the accuracy of the simulation results based on the comparison between the test and the field measurement data. And then predict the flow of groundwater and the penetration. Base on the software simulation of the surface displacement and field observation wells pumping records, to calculate the water surface elevation and the elevation, the general trend

APA, Harvard, Vancouver, ISO, and other styles

33

He, Wen, Xiaogeng Gao, and Xuhai Feng. "Research on Pre-Grouting Technique of Blind Shaft of Metal Mine in Southwest China." IOP Conference Series: Earth and Environmental Science 455 (March 25, 2020): 012199. http://dx.doi.org/10.1088/1755-1315/455/1/012199.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Hou, Zhenkun, Mengxiong Tang, Hesong Hu, Zegeng Lin, Hang Chen, and Chunlin Liu. "Quantitative Characterization of Grouting Stones for Drilling with Pre-stressed Concrete Pile Cased Pile." IOP Conference Series: Earth and Environmental Science 632 (January 14, 2021): 022008. http://dx.doi.org/10.1088/1755-1315/632/2/022008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Panthi, Krishna Kanta. "Effectiveness of Post-injection Grouting in Controlling Leakage: A Case Study." Hydro Nepal: Journal of Water, Energy and Environment 8 (October 12, 2012): 14–18. http://dx.doi.org/10.3126/hn.v8i0.4903.

Full text

Abstract:

In many occasions severe water leakage problems are faced in shotcrete lined or unlined water tunnels that not only reduce stability of the rock mass but also result in loss of valuable water in conveying tunnel systems. Such leakage causes safety risks and increases the potential for huge economic loss to the hydropower projects. On the other hand, use of full concrete lining as final support increases the construction cost and time considerably. The best way to reduce leakage control and construction costs and time is the use of pre-injection grouting in the headrace tunnels. This paper disc

APA, Harvard, Vancouver, ISO, and other styles

36

Li, Nan, Mingchen Cao, Hangben Du, Cunfu He, and Bin Wu. "Detection of Single Steel Strand Distribution in Grouting Duct Based on Capacitive Sensing Technique." Sensors 19, no. 11 (2019): 2564. http://dx.doi.org/10.3390/s19112564.

Full text

Abstract:

Grouting ducts (containing steel strands) are widely used to increase the structural strengths of infrastructures. The determination of the steel strand’s integrity inside of ducts and the grouting quality are important for a strength evaluation of the structure. In this study, a capacitive sensing technique was applied to identify the cross-sectional distribution of the steel strands. The distribution was expressed in polar coordinates in an external post-tensioned pre-stressed duct model. An improved capacitive sensor structure was designed, which consisted of four electrodes, and different

APA, Harvard, Vancouver, ISO, and other styles

37

Hlepas, Georgette, and Vanessa Bateman. "Lessons Learned from Usace Seepage Barrier Wall Construction: Wolf Creek To Present." Environmental and Engineering Geoscience 24, no. 1 (2018): 75–88. http://dx.doi.org/10.2113/gseegeosci.24.1.75.

Full text

Abstract:

Abstract The U.S. Army Corps of Engineers (USACE) maintains a lessons-learned goal for all major projects to capture knowledge gained. The focus of the formal lessons-learned process is to share knowledge and experience nationwide improving USACE contracting methodologies, reducing overall costs, and improving designs. This continuous improvement can be seen in the evolution of USACE barrier wall construction designs and contracting methods. From the first Wolf Creek Dam barrier wall installed in the 1970s to the more recent Bolivar and East Branch Dam barrier wall projects, documentation and

APA, Harvard, Vancouver, ISO, and other styles

38

Tian, Jiansheng, and Li Hu. "Anchorage performance of a high-pressure pre-tightening resin anchor with a compressed grouting body." PLOS ONE 12, no. 2 (2017): e0171653. http://dx.doi.org/10.1371/journal.pone.0171653.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Zhao, Tong, and Changyou Liu. "Roof instability characteristics and pre-grouting of the roof caving zone in residual coal mining." Journal of Geophysics and Engineering 14, no. 6 (2017): 1463–74. http://dx.doi.org/10.1088/1742-2140/aa8eb6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Zhou, Jia-jin, Xiao-nan Gong, Kui-hua Wang, Ri-hong Zhang, and Jia-jia Yan. "Testing and modeling the behavior of pre-bored grouting planted piles under compression and tension." Acta Geotechnica 12, no. 5 (2017): 1061–75. http://dx.doi.org/10.1007/s11440-017-0540-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Kang, Zhi Qiang, Ying Chun Wang, Feng Nan, Shi Lin Yuan, and Jiu Lin Yang. "Research on Numerical Analysis of Landslide Cataclysm Mechanism Coal Mine." Advanced Materials Research 383-390 (November 2011): 7697–701. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.7697.

Full text

Abstract:

This article according to the ShengLi Open-pit Coal Mine landslide and the slope project special details, used the FLAC numerical calculus analysis software to conduct the research to the landslide cataclysm mechanism, has carried on the optimized analysis to the reinforcement plan.Has obtained the pre-stressed anchor rope frame beam + high pressure splitting grouting reinforcement plan government landslide most superior processing plan through the numerical calculus, thus active control ShengLi Open-pit Coal Mine slope distortion destruction.

APA, Harvard, Vancouver, ISO, and other styles

42

Gao, Quan Chen, Zhuo Yang, Hong Bo Wang, Han Lu Fu, Rong Bin Zhou, and Da Chong Feng. "Application of Water-Proof Curtain with High-Pressure Injection Concrete Piles in Foundation Pit." Applied Mechanics and Materials 744-746 (March 2015): 447–50. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.447.

Full text

Abstract:

This paper introduces a design program for supporting of deep foundation pit through the actual example for Beijing Moisten the world Center project to solve the difficulties of high water content in foundation soil, sensitiveness to surroundings, and difficult control of quick sand and flowing mud in the process of supporting of foundation pit. This program adopts a supporting system with upper soil nailing wall and lower pre-stressed anchor pile and a comprehensive water-proof curtain (Retaining piles + Long spiral high pressure jet grouting & mixing piles) to effectively solve the above

APA, Harvard, Vancouver, ISO, and other styles

43

Yang, Rili, Xiaoxia Zhao, and Lan Yu. "Improvement and application of hole-sealing technology across seams in Song Zao coal mine." E3S Web of Conferences 53 (2018): 02003. http://dx.doi.org/10.1051/e3sconf/20185302003.

Full text

Abstract:

Through the analysis on the drilling hole gas drainage effect(2225 working face crossing seam drainage, K2air way drilling field layout, crossing seam drainage gas in K3b coal seam),it is found that hole sealing technology directly affects gas drainage. Based on the original hole sealing technology and combining with field conditions, an improved drilling scheme for transportation roadway was proposed, considering the drilling layout, sealing material and depth, grouting time, pre-plunging depth. Test results of the scheme showed that, with a rise in the cost and drilling pressure relief time,

APA, Harvard, Vancouver, ISO, and other styles

44

Zhou, Jia-jin, Xiao-nan Gong, Kui-hua Wang, Ri-hong Zhang, and Jia-jia Yan. "A simplified nonlinear calculation method to describe the settlement of pre-bored grouting planted nodular piles." Journal of Zhejiang University-SCIENCE A 18, no. 11 (2017): 895–909. http://dx.doi.org/10.1631/jzus.a1600640.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Strømsvik, Helene. "The significance of hydraulic jacking for grout consumption during high pressure pre-grouting in Norwegian tunnelling." Tunnelling and Underground Space Technology 90 (August 2019): 357–68. http://dx.doi.org/10.1016/j.tust.2019.05.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

李, 凤翔. "Study on Compressive Bearing Capacity of Pre-Bored Grouting Planted Nodular Pile in Rail Transit Engineering." Hans Journal of Civil Engineering 08, no. 03 (2019): 553–59. http://dx.doi.org/10.12677/hjce.2019.83065.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Zhang, Cong, Junsheng Yang, Jinyang Fu, et al. "Cement based eco-grouting composite for pre-reinforcement of shallow underground excavation in vegetation protection area." Tunnelling and Underground Space Technology 118 (December 2021): 104188. http://dx.doi.org/10.1016/j.tust.2021.104188.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

MIKAKE, Shin-ichiro, Koki IKEDA, Hiroya MATSUI, Masakuni TSUJI, and Makoto NISHIGAKI. "EVALUATION OF COMBINED PRE- AND POST-EXCAVATION GROUTING FOR REDUCING WATER INFLOW UNDER HIGH WATER PRESSURE CONDITION." Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering) 74, no. 1 (2018): 76–91. http://dx.doi.org/10.2208/jscejge.74.76.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Yang, Junsheng, Cong Zhang, Jinyang Fu, Shuying Wang, Xuefeng Ou, and Yipeng Xie. "Pre-grouting reinforcement of underwater karst area for shield tunneling passing through Xiangjiang River in Changsha, China." Tunnelling and Underground Space Technology 100 (June 2020): 103380. http://dx.doi.org/10.1016/j.tust.2020.103380.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Guo, Yanxu, Xiaochen Wang, Haojie Liu, et al. "Research on Pre-grouting Strengthening Technology of Shallow and Large Section Metro Tunnel through Fault Fracture Zone." IOP Conference Series: Earth and Environmental Science 189 (November 6, 2018): 052057. http://dx.doi.org/10.1088/1755-1315/189/5/052057.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!