›› 2011, Vol. 32 ›› Issue (S1): 185-189.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on failure mode of clay slope containing horizontal sand interlayer under excavation conditions

LI Ming, ZHANG Ga, ZHANG Jian-min, LEE C F   

  1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2010-12-14 Online:2011-05-15 Published:2011-05-16

PDF (Chinese)

1619

Abstract: Slopes containing interlayers are common phenomenon in practice and it makes sense to research stabilities of such slopes. So far as the recent research is concerned, it mainly focuses on the stability of rock slope and little recognition of clay slope is involved. In fact, it is more dangerous for clay slopes containing interlayers under excavation conditions and correct recognition of failure modes of clay slopes contribute to the reasonable assessment of stability. Some centrifuge model tests were conducted with clay slopes containing interlayers in the middle part under excavation conditions. Comparison of failure modes was made between clay slopes with and without a 5 cm thick horizontal sand interlayer. The results show that the existence of sand interlayer diminishes the stability of slope; and the bottom boundary of sand interlayer is the weak plane

Key words: slope, excavation, sand interlayer, failure mode

CLC Number: 

  • TU 471
[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] WANG Guo-hui, CHEN Wen-hua, NIE Qing-ke, CHEN Jun-hong, FAN Hui-hong, ZHANG Chuan, . Impacts of pit excavation on foundation piles in deep silty soil by centrifugal model tests [J]. Rock and Soil Mechanics, 2020, 41(2): 399-407.
[3] FAN Ke-wei, LIU Si-hong, LIAO Jie, FANG Bin-xin, WANG Jian-lei, . Experimental study on shearing characteristics of pebbles-filled soilbags [J]. Rock and Soil Mechanics, 2020, 41(2): 477-484.
[4] ZHU Yan-peng, TAO Jun, YANG Xiao-hui, PENG Jun-guo, WU Qiang, . Design and numerical analyses of high-fill slope strengthened by frame with prestressed anchor-plates [J]. Rock and Soil Mechanics, 2020, 41(2): 612-623.
[5] WEI Gang, ZHANG Xin-hai, LIN Xin-bei, HUA Xin-xin, . Variations of transverse forces on nearby shield tunnel caused by foundation pits excavation [J]. Rock and Soil Mechanics, 2020, 41(2): 635-644.
[6] KE Jin-fu, WANG Shui-lin, ZHENG Hong, YANG Yong-tao, . Application and promotion of a modified symmetric and anti-symmetric decomposition-based three-dimensional numerical manifold method [J]. Rock and Soil Mechanics, 2020, 41(2): 695-706.
[7] LI Jian, CHEN Shan-xiong, YU Fei, JIANG Ling-fa, DAI Zhang-jun. Discussion on mechanism of reinforcing high and steep slope with prestressed anchor cable [J]. Rock and Soil Mechanics, 2020, 41(2): 707-713.
[8] DAI Guo-liang, ZHU Wen-bo, GUO Jing, GONG Wei-ming, ZHAO Xue-liang, . Experiments on vertical uplift bearing capacity of suction caisson foundation in soft clay [J]. Rock and Soil Mechanics, 2019, 40(S1): 119-126.
[9] YAN Guo-qiang, YIN Yue-ping, HUANG Bo-lin, ZHANG Zhi-hua, DAI Zhen-wei, . Formation mechanism and deformation characteristics of Jinjiling landslide in Wushan, Three Gorges Reservoir region [J]. Rock and Soil Mechanics, 2019, 40(S1): 329-340.
[10] LIU Shun-qing, HUANG Xian-wen, ZHOU Ai-zhao, CAI GUO-jun, JIANG Peng-ming, . A stability analysis method of soil-rock slope based on random block stone model [J]. Rock and Soil Mechanics, 2019, 40(S1): 350-358.
[11] LIU Zu-qiang, LUO Hong-ming, ZHENG Min, SHI Yun-jiang, . Study on expansion-shrinkage characteristics and deformation model for expansive soils in canal slope of South-to-North Water Diversion Project [J]. Rock and Soil Mechanics, 2019, 40(S1): 409-414.
[12] DING Zhi, ZHANG Xiao, JIN Jie-ke, WANG Li-zhong, . Measurement analysis on whole excavation of foundation pit and deformation of adjacent metro tunnel [J]. Rock and Soil Mechanics, 2019, 40(S1): 415-423.
[13] LIU Hong-yan. Influence of macroscopic and mesoscopic flaws on mechanical behavior of rock mass and slope stability [J]. Rock and Soil Mechanics, 2019, 40(S1): 431-439.
[14] WANG Wei, CHEN Guo-qing, ZHENG Shui-quan, ZHANG Guang-ze, WANG Dong, . Study on the vector sum method of slope considering tensile-shear progressive failure [J]. Rock and Soil Mechanics, 2019, 40(S1): 468-476.
[15] JIANG An-nan, ZHANG Quan, WU Hong-tao, DUAN Long-mei, JIAO Ming-wei, BAI Tao, . Stability analysis of slope affected by blasting based on improved local safety method [J]. Rock and Soil Mechanics, 2019, 40(S1): 511-518.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] WU Chang-yu, ZHANG Wei, LI Si-shen, ZHU Guo-sheng. Research on mechanical clogging mechanism of releaf well and its control method[J]. , 2009, 30(10): 3181 -3187 .
[2] CHEN Hong-jiang, LI Xi-bing, LIU Ai-hua. Studies of water source determination method of mine water inrush based on Bayes’ multi-group stepwise discriminant analysis theory[J]. , 2009, 30(12): 3655 -3659 .
[3] HE Fa-guo, CHEN Wen-wu, HAN Wen-feng, ZHANG Jing-ke. Correlation of microstructure indices and performance of sand solidified with polymer material SH[J]. , 2009, 30(12): 3803 -3807 .
[4] LEI Yong-sheng. Research on protective measures of City Wall and Bell Tower due to underneath crossing Xi’an Metro Line No.2[J]. , 2010, 31(1): 223 -228 .
[5] XIAO Zhong, WANG Yuan-zhan, JI Chun-ning, HUANG Tai-kun, SHAN Xu. Stability analysis of large cylindrical structure for strengthening soft foundation under wave load[J]. , 2010, 31(8): 2648 -2654 .
[6] CHAI Bo, YIN Kun-long, CHEN Li-xia, LI Yuan-yao. Analysis of slope deformation under control of rock mass structure[J]. , 2009, 30(2): 521 -525 .
[7] ZHAO Hong-bo, RU Zhong-liang, ZHANG Shi-ke. Application of support vector machine to reliability analysis of underground engineering[J]. , 2009, 30(2): 526 -530 .
[8] XU Yang, GAO Qian, LI Xin, LI Jun-hua, JIA Yun-xi. In-situ experimental study of permeability of rock and soil aggregates[J]. , 2009, 30(3): 855 -858 .
[9] ZHANG Ding-wen，LIU Song-yu，GU Chen-ying. Elastoplastic analysis of cylindrical cavity expansion with anisotropic initial stress[J]. , 2009, 30(6): 1631 -1634 .
[10] DENG Hua-feng，ZHANG Guo-dong，WANG Le-hua，DENG Cheng-jin，GUO Jing，LU Tao. Monitoring and analysis of blasting vibration in diversion tunnel excavation[J]. , 2011, 32(3): 855 -860 .
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