›› 2006, Vol. 27 ›› Issue (S1): 412-415.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on stability of surrounding rock mass for intake tunnel due to swelling rock

LIU Dou-dou1，2，CHEN Wei-zhong1，3，WU Guo-jun3，TAN Xian-jun3   

  1. 1. Geotechnical and Structural Engineering Research Center，Shandong University，Jinan 250061, China； 2. Business Administration Institute， Shandong Institute of Finance，Jinan 250014, China； 3. Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，Wuhan 430071, China
  • Received:2006-06-18 Published:2006-12-15

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Abstract: The swelling rock usually induces surrounding rock mass be extruded largely or floor lift by time even the support and surrounding rock mass be damaged or destroyed in practice. The geologic characteristic of the tunnel No.7 for Shanxi Wanjiazhai Yellow River Diversion Project is sandstone and mudstone distributing interactively and has 3-4 layers swelling rock through the tunnel. Numerical analysis with viscoelasto-plastic model has been done to analyze the process of excavation and support procedures. The numerical results show that swelling deformation has high effect on stability and mechanical behavior of support structure. Therefore, the displacement, stress and strain, seepage pressure and water pressure should be measured during the tunnel operating.

Key words: swelling rock, rheology, viscoelasto-plastic, stability

CLC Number: 

  • TU 457
  • 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.
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