›› 2013, Vol. 34 ›› Issue (S1): 379-385.

• Geotechnical Engineering • Previous Articles     Next Articles

Stablity analysis of rocky slope for arch bridge foundation in gorge area

TIAN Hong-ming1，CHEN Wei-zhong1,2，ZHENG Peng-qiang1，YU Jian-xin1   

  1. 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechancis, Chinese Academy of Sciences, Wuhan 430071, China; 2. Research Center of Geotechnical & Structural Engineering, Shandong University, Jinan 250061, China
  • Received:2012-05-13 Online:2013-08-30 Published:2014-06-09

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Abstract: The stability of bank is very important for safety of bridge which is constructed on it. Therefore, the stability analysis of rock bank with masses of joints and faults under bridge load should be carried out for Furongjjang bridge. Based on the laboratory tests results, the machnical parameters of bed rock and cement face between skewback and bed rock are obtained. Considering effect of beding and vertical joints, the analysis of stability of bank is done with strength reduction method. And according to the calculation results, the slide surface is a typical polygonal line because of failure of joints and faults. After the construction of bridge, a practical slide surface would form under skewback due to huge bridge load; and it is very harmful to the stability of whole bank slope. Threrefore, it is necessary to reinforce the bed rock behind the skewback.

Key words: stability analysis on rocky slope, arch bridge in gorge area, Furongjiang bridge, strength reduction method

CLC Number: 

  • TU 411
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