›› 2011, Vol. 32 ›› Issue (4): 1040-1044.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study of seepage characteristics of clayey soil-structure interface under large shear deformation

LEI Hong-jun，LIU Zhong-ge，YU Yu-zhen，LÜ He   

  1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2010-03-23 Online:2011-04-10 Published:2011-04-29

PDF (Chinese)

2661

Abstract:

Large shear deformation often occurs in the clayey soil-structure interface; and some defects and impurities near the interface may affect the seepage safety. By using a seepage test device for interface, seepage characteristics of clayey soil-structure interface under large shear deformation were studied. The conditions of the interface with construction defects and impurities were simulated and the seepage characteristics were compared with that of homogeneous clayey soil. The effects of normal stress, shear deformation and hydraulic gradient were analyzed. The results show that the permeability of the interface with defects decreases with large shear deformation; while the permeability of the interface with impurities decreases with shear deformation increase at the beginning and then increases after a certain shear deformation. The permeabilities of interfaces with defects and impurities are higher than that of homogeneous clayey soil.

Key words: clayey soil-structure interface, seepage, large shear deformation, hydraulic gradient

CLC Number: 

  • TU 411.4
[1] SU Yong-hua, LI Cheng-cheng. Stability analysis of slope based on Green-Ampt model under heavy rainfall [J]. Rock and Soil Mechanics, 2020, 41(2): 389-398.
[2] ZUO Yong-zhen, ZHAO Na. Experimental study on the seepage filter protection of core-wall material slurry under extreme conditions [J]. Rock and Soil Mechanics, 2020, 41(2): 520-526.
[3] LIU Cheng-yu, CHEN Bo-wen, LUO Hong-lin, RUAN Jia-chun, . Experimental study of seepage erosion induced by pipeline damage under full pipe flow condition [J]. Rock and Soil Mechanics, 2020, 41(1): 1-10.
[4] WANG Gang, WEI Lin-yi, WEI Xing, ZHANG Jian-min. Permeability evolution of compacted clay during triaxial compression [J]. Rock and Soil Mechanics, 2020, 41(1): 32-38.
[5] XIA Cai-chu, YU Qiang-feng, QIAN Xin, GUI Yang, ZHUANG Xiao-qing. Experimental study of shear-seepage behaviour of rock joints under constant normal stiffness [J]. Rock and Soil Mechanics, 2020, 41(1): 57-66.
[6] ZHI Yong-yan, DENG Hua-feng, XIAO Yao, DUAN Ling-ling, CAI Jia, LI Jian-lin. Analysis of seepage characteristics of fractured rock mass reinforced by microbial grouting [J]. Rock and Soil Mechanics, 2019, 40(S1): 237-244.
[7] XU Jiang, WU Jun-yu, LIU Yi-xin, LIE Jiao, . Experimental study of shear-seepage coupling properties of rock mass under different filling degrees [J]. Rock and Soil Mechanics, 2019, 40(9): 3416-3424.
[8] WANG Peng-fei, TAN Wen-hui, MA Xue-wen, LI Zi-jian, LIU Jing-jun, WU Yang-fan. Experimental study of seepage characteristics of consecutive and filling fracture with different roughness levels and gap-widths [J]. Rock and Soil Mechanics, 2019, 40(8): 3062-3070.
[9] ZHANG Tian-jun, PANG Ming-kun, JIANG Xing-ke, PENG Wen-qing, JI Xiang, . Influence of negative pressure on gas percolation characteristics of coal body in perforated drilling hole [J]. Rock and Soil Mechanics, 2019, 40(7): 2517-2524.
[10] CAO Hong, HU Yao, LUO Guan-yong. Research on approximate calculation method for incomplete wells with filter screen ends away from the confined aquifer level [J]. Rock and Soil Mechanics, 2019, 40(7): 2774-2780.
[11] LIU Meng-shi, LUO Qiang, JIANG Liang-wei, LU Qing-yuan, LIANG Duo-wei, . Boundary pore characteristics and optimal treatment thickness in seepage test of coarse grained soil [J]. Rock and Soil Mechanics, 2019, 40(5): 1787-1796.
[12] JIN Dan-dan, WANG Su, LI Chuan-xun. Analysis of consolidation of natural heterogeneous soils with a threshold hydraulic gradient [J]. Rock and Soil Mechanics, 2019, 40(4): 1433-1440.
[13] XU Qiang, XIAO Ming, CHEN Jun-tao, NI Shao-hu, . Solution to seepage monitoring data deficiency and judgement of seepage stability [J]. Rock and Soil Mechanics, 2019, 40(4): 1526-1534.
[14] XIE Qiang, TIAN Da-lang, LIU Jin-hui, ZHANG Jian-hua, ZHANG Zhi-bin, . Simulation of seepage flow on soil slope and special stress-correction technique [J]. Rock and Soil Mechanics, 2019, 40(3): 879-892.
[15] ZHENG Li-ming, ZHANG Yang-yang, LI Zi-feng, MA Ping-hua, YANG Xin-jun, . Analysis of seepage changes during poroelastic consolidation process with porosity and pressure variation under low-frequency vibration [J]. Rock and Soil Mechanics, 2019, 40(3): 1158-1168.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] YIN Jie，GAO Yu-feng，HONG Zhen-shun. Research on undrained shear strength tests of soft Lianyungang clay[J]. , 2009, 30(11): 3297 -3301 .
[2] CHEN Shao-jie, GUO Wei-jia, YANG Yong-jie. Experimental study of creep model and failure characteristics of coal[J]. , 2009, 30(9): 2595 -2598 .
[3] LIN Gang，XU Chang-jie，CAI Yuan-qiang. Research on characters of retaining structures for deep foundation pit excavation under unbalanced heaped load[J]. , 2010, 31(8): 2592 -2598 .
[4] MU Yan-hu，MA Wei，SUN Zhi-zhong，LIU Yong-zhi. Comparative analysis of cooling effect of crushed rock embankment along the Qinghai-Tibet Railway[J]. , 2010, 31(S1): 284 -292 .
[5] ZHAO Lian-heng，LUO Qiang，LI Liang，YANG Feng，DAN Han-cheng. Upper bound quasi-static analysis of dynamic stability of layered rock slopes[J]. , 2010, 31(11): 3627 -3634 .
[6] LIU Xiao-li, ZHANG Dan-dan, LIU Kai, SU Yuan-yuan. Design and application of a kind of direct shear model test apparatus[J]. , 2010, 31(S2): 475 -480 .
[7] KANG Yong-jun，YANG Jun，SONG Er-xiang. Calculation method and parameter research for time-history of factor of safety of slopes subjected to seismic load[J]. , 2011, 32(1): 261 -268 .
[8] LU Kun-lin, YANG Yang. Approximate calculation method of active earth pressure considering displacement[J]. , 2009, 30(2): 553 -557 .
[9] LI Rong-jian，YU Yu-zhen，Lü He，LI Guang-xin. Dynamic centrifuge modeling of piles-reinforced slope on saturated sandy foundation[J]. , 2009, 30(4): 897 -902 .
[10] XIAO Cheng-zhi, SUN Jian-cheng, LI Yu-run, LIU Xiao-peng. Mechanism analysis of ecological slope protection against runoff erosion by grass jetting on 3D geomat[J]. , 2011, 32(2): 453 -458 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd