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A Case Study on the Reinforcement Countermeasures for Strongly Swelling SoftRock Slope in Yanji Basin

HE Man-chao1,2, LIU Cheng-yu1, WU Xiong3   

  1. 1.Geotechnique Institute, China University of Mining and Technology, Beijing 100083,China;2. School of Engineering and Technology, China University of Geosciences, Beijing 100083, China;3. China Institute of Water Resource and Hydropower Research, Beijing 100044, China
  • Received:2004-09-15 Revised:1900-01-01 Online:2005-07-26 Published:2005-07-26
  • Contact: HE Man-chao

Abstract: The engineering problems-slope sliding and serious deformation in Yanji basin occurred frequently during the construction of highways. The results of research show that the main factor causing the slope sliding and deformation is that there is a kind of swelling soft rock well distributing and developing in the area. This soft rock contains much more particles of swelling clay characterized by low strength, easy disintegration, strong swelling and high swelling forces. In accordance with such characteristics of soft rock, the author presents the reinforcement means and countermeasures for the soft rock slope with the largedeformation design method, those are strong drainage, prereinforcement using high pressure anchor grouting piles, reinforcement using anchor cables with dispersive pressure, preventing bottom swelling using anchor piles and so on.

Key words: swelling softrock, strength, reinforcement means, large deformation design theory

CLC Number: 

  • U416.163
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