›› 2007, Vol. 28 ›› Issue (4): 747-752.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on deformation character of Three Gorges Project’s 2nd phase cofferdam during its operation period

JIANG Zhong-ming1, GU Zheng-hua2, ZHANG Xin-min1, SUN Zhi-yu3   

  1. 1. Institute of Geotechnical Engineering,Changsha University of science &technology, Changsha, Hunan 410076, China; 2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310028, China; 3. Three Gorges Project development Company of China, Yichang, Hubei, 443000, China
  • Received:2005-03-14 Online:2007-04-10 Published:2013-09-05

PDF (PC)

1130

Abstract: Based on the Duncan E-? constitutive model used for analyzing soil-rock dams, 3 parameters creep model used for studying creep deformation of soil-rock dams is developed and programmed. According to the measured deformation data of Three Gorges Project’s 2nd phase cofferdam of early operation period, calculation parameters used for creep analysis are inverse-analyzed using artificial neural networks. The calculated results indicate that the vertical deformation rule of cofferdam versus time and horizontal deformation rule of cofferdam versus time is different from each other. It is also indicated that the stable time needed for vertical creep displacement is about 6 months after the cofferdam is constructed and the stable time needed for horizontal creep displacement is only 3 months. It also shows that the average creep displacement value of the cofferdam structure is 2-3 times of the initial displacement.

Key words: Duncan E-? constitutive model, 3 parameters creep model, Three Gorges Project’s 2nd phase cofferdam, creep deformation

CLC Number: 

  • TU 433
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] ZHANG Qiang-yong, ZHANG Long-yun, XIANG Wen, JIANG Li-yu, DING Yan-zhi1,. Triaxial creep test of gneissic granite considering thermal effect [J]. , 2017, 38(9): 2507-2514.
[2] JI Wen-dong, YANG Chun-he, YAO Yuan-feng, SHI Xi-lin. Behaviors of existing salt cavern group used for underground energy storage [J]. , 2012, 33(9): 2837-2844.
[3] LI Zhen-yu ，XIAO Hong-bin ，JIN Wen-ting ，YI Wen . Study of nonlinear rheological model of Nanning expansive soils [J]. , 2012, 33(8): 2297-2302.
[4] CAO Guang-xu, SONG Er-xiang, XU Ming. Simplified calculation methods of post-construction settlement of high-fill foundation in mountain airport [J]. , 2011, 32(S1): 1-5.
[5] ZHANG Yun，XUE Yu-qun，WU Ji-chun，HE Jia-jia，WANG Hui-min. Experimental study of creep deformation of saturated clay [J]. , 2011, 32(3): 672-676.
[6] ZHANG Yun, XUE Yu-qun, WU Ji-chun, LIU Yun-tao, PU Xiao-fang. Experimental research on creep of Shanghai sands [J]. , 2009, 30(5): 1226-1230.
[7] KONG Xian-jing , SUN Xiu-li , ZOU De-gao . Creep-degradation properties of municipal solid waste in laboratory tests [J]. , 2008, 29(2): 337-342.
[8] ZHANG Bing-yin, SHI Rui-feng. Influence of creeping on separation between concrete slab and cushion layer in high concrete face rock-fill dam [J]. , 2004, 25(8): 1179-1184.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] REN Song, JIANG De-yi, YANG Chun-he, TENG Hong-wei. Creep tests on shale of cracking position in Gonghe tunnel and simulating it by DEM[J]. , 2010, 31(2): 416 -421 .
[2] WANG Ling，SHEN Shui-long，BAI Yun，PENG Shao-jie. Characteristics of strength increase of cement treated Shanghai clayey soils[J]. , 2010, 31(3): 743 -747 .
[3] YU Lin-lin，XU Xue-yan，QIU Ming-guo, LI Peng-fei，YAN Zi-li. Influnce of freeze-thaw on shear strength properties of saturated silty clay[J]. , 2010, 31(8): 2448 -2452 .
[4] ZHU Xun-guo, YANG Qing. Identification and classification of swelling rock[J]. , 2009, 30(S2): 174 -177 .
[5] CHEN Xiang-hao，DENG Jian-hui，CHEN Ke-wen，ZHENG Jun，MENG Fan-li，XU Liang. Stress monitoring and analysis of gravelly soil corewall in high rockfill dam during construction[J]. , 2011, 32(4): 1083 -1088 .
[6] CAO Guang-xu, SONG Er-xiang, XU Ming. Simplified calculation methods of post-construction settlement of high-fill foundation in mountain airport[J]. , 2011, 32(S1): 1 -5 .
[7] LIU Nian-ping , WANG Hong-tu , YUAN Zhi-gang , LIU Jing-cheng. Fisher discriminant analysis model of sand liquefaction and its application[J]. , 2012, 33(2): 554 -557 .
[8] WEI Zhen-hai ，WANG Meng-shu ，ZHANG Ding-li . Study of strength model of soil structure[J]. , 2013, 34(1): 40 -46 .
[9] CHEN Pei-shuai , CHEN Wei-zhong , ZHUANG Yan . Forecasting of rockburst with two-step method based on fracture mechanics[J]. , 2013, 34(2): 575 -584 .
[10] YANG Feng-wei ，LI Hai-bo ，LI Jian-chun ，HAO Ya-fei ，WANG Miao . Numerical simulation of transmission characteristics of oblique incidence of stress waves across linear elastic joints[J]. , 2013, 34(3): 901 -907 .
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