JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2014, Vol. 31 ›› Issue (9): 69-73.DOI: 10.3969/j.issn.1001-5485.2014.09.013

• ROCKSOIL ENGINEERING • Previous Articles     Next Articles

Influence of Joints on Stress and Displacement of Sash-shaped Diaphragm Wall by FEM Analysis

KONG Ke1,2, WANG Xiao-bo1, XU Yuan-jie2,PAN Jia-jun3   

  1. 1.Hydrochina Chengdu Engineering Corporation, Chengdu 610072, China;
    2. School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China;
    3. Key Laboratory of
    Geotechnical Mechanics and Engineering of the Ministry of Water Resources,Yangtze River Scientific Research Institute, Wuhan 430010,China
  • Received:2013-07-01 Revised:2014-09-04 Online:2014-09-01 Published:2014-09-04

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Abstract: Construction joint, which is resulted from underground diaphragm wall construction to deal with complex geological foundation for hydropower project, is a difficulty in engineering because it affects the overall mechanical properties of the underground diaphragm wall. According to the real geological conditions under the last part of diaphragm wall of Tongzilin hydropower project, we established finite element models of sash-shaped underground diaphragm wall with three different kinds of joints (rigid joints, hinged joints and semi-free joints). The stress and deformation of the wall respectively with these three kinds of joints were analyzed and compared under the most adverse working condition in ABAQUS non-linear simulation. The influence of joint on the stress and deformation of underground diaphragm wall was obtained. The result is a reference for similar projects.

Key words: sash-shaped diaphragm wall, joint, non-linear, FEM, stress and deformation

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