Study of mechanical characters of anti-sliding piles considering different foundation coefficients of sliding bed

ZHAN Hong-zhi; WANG Liang-qing; WANG Chang-shuo; ZHANG Nan

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Study of mechanical characters of anti-sliding piles considering different foundation coefficients of sliding bed

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- Study of mechanical characters of anti-sliding piles considering different foundation coefficients of sliding bed
- Vol. 35, Issue S2, (2014)
- 作者机构：
  
  中国地质大学（武汉）工程学院,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：12 November 2014，
  
  Published：2014
- 稿件说明：
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ZHAN Hong-zhi, WANG Liang-qing, WANG Chang-shuo, et al. Study of mechanical characters of anti-sliding piles considering different foundation coefficients of sliding bed[J]. 2014, 35(S2).
DOI：

ZHAN Hong-zhi, WANG Liang-qing, WANG Chang-shuo, et al. Study of mechanical characters of anti-sliding piles considering different foundation coefficients of sliding bed[J]. 2014, 35(S2). DOI：

摘要

基于目前在抗滑桩理论研究方面多将滑床层状地层等效成均质体，在多层地基横向受荷桩挠曲微分方程的基础上，推导出考虑滑床不同地基系数的弹性抗滑桩嵌固段变位、内力和应力计算的公式。用Matlab软件编写了抗滑桩变位、内力和应力计算与图形处理程序，有效提高了抗滑桩变位、内力和应力分析效率和计算精度。工程实例表明，考虑滑床不同地基系数计算方法对比等效法，滑面处位移、滑面处转角、剪力最大值、弯矩最大值分别增大25.76%、18.04%、14.90%和4.16%，而滑动面处桩侧应力较等效法减小44.91%。该研究成果对滑坡为不同岩性的岩体进行抗滑桩设计具有指导意义。

Abstract

Laminar formation of sliding bed is usually regarded as equivalent with homogenate in current study of anti-sliding piles. However

this equivalent will definitely lead to some errors compared with real condition. Here

based on the deflection differential equation of the laterally loaded piles

the formulas of the displacement

internal forces and the stress of the elastic anti-sliding piles is deduced considering the different foundation coefficient of sliding bed. Meanwhile

the calculation and graphic processing programs of the internal forces and stress of the elastic anti-slide piles are written in Matlab software. This software devotes much in increasing the efficiency and the accuracy of the calculation. Comparisons were made with the method of equal effects to show that the displacement of sliding surface

the corner of sliding surface

the maximum values of the shear strength and the bending moment increases 25.76%

18.04%

15.6% and 4.39%

respectively

and the lateral stress of sliding surface decreases 44.91%. The study plays an important role in guiding different lithological rock masses of landslide for anti-sliding piles design.

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