Geomechanics and Engineering

  • 제8권4호
  • /
  • Pages.511-521
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  • 2015
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Linear regression analysis for factors influencing displacement of high-filled embankment slopes

  • Zhang, Guangcheng (Department of Engineering, China University of Geosciences) ;
  • Tan, Jiansong (CCCC Second Highway Consultants Co. LTD.) ;
  • Zhang, Lu (Department of Engineering, China University of Geosciences) ;
  • Xiang, Yong (Department of Engineering, China University of Geosciences)
  • 투고 : 2014.04.03
  • 심사 : 2014.12.28
  • 발행 : 2015.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

It is a common failure type that high-filled embankment slope sideslips. The deformation mechanism and factors influencing the sideslip of embankment slope is the key to reduce the probability of this kind of engineering disaster. Taking Liujiawan high-filled embankment slope as an example, the deformation and failure characteristics of embankment slope and sheet-pile wall are studied, and the factors influencing instability are analyzed, then the correlation of deformation rate of the anti-slide plies and each factor is calculated with multivariate linear regression analysis. The result shows that: (1) The length of anchoring segment is not long enough, and displacement direction of embankment and retaining structure are perpendicular to the trend of the highway; (2) The length of the cantilever segment is so large that the active earth pressures behind the piles are very large. Additionally, the surface drainage is not smooth, which leads to form a potential sliding zone between bottom of the backfill and the primary surface; (3) The thickness of the backfill and the length of the anti-slide pile cantilever segment have positive correlation with the deformation whereas the thickness of anti-slide pile through mudstone has a negative correlation with the deformation. On the other hand the surface water is a little disadvantage on the embankment stability.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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