大型滑坡桩排推力分担比离心模型试验研究  

Study on Thrust-Sharing Ratio of Large-sized Landslide Pile Row through Centrifugal Model Test

作　　者：徐骏[1,2] 李安洪[1] 赵晓彦[1,2] 

机构地区：[1]中铁二院工程集团有限责任公司,成都610031 [2]西南交通大学土木工程学院,成都610031

出　　处：《路基工程》2010年第3期57-59,共3页Subgrade Engineering

基　　金：西南交通大学地质灾害与环境保护国家重点实验室开放基金项目(GZ200602)

摘　　要：采用离心模型试验方法,研究直线型滑坡在滑面位置已知而桩排数目及桩排间距不同情况下,各排抗滑桩的推力分配规律,总结出直线型滑面滑坡多排抗滑桩优化设计原则:当各排桩承担滑坡推力较小时,可适当减少抗滑桩桩排数目,充分利用各排桩的抗滑能力;当某排桩承担推力过大时,应考虑调整桩排间距,以使各排桩受力趋于合理。试验研究结果对于抗滑桩的优化设计具有重要意义。Through centrifugal model test,this paper studies the thrust distribution rule of anti-slide pile row under conditions of linear landslide with sliding position known but with different pile row number and distance,and concludes multi-row anti-slide pile optimization design principle for linear landslide.When each row of pile bears less thrust,anti-slide pile row number can be reduced properly to make full use of sliding resistance of each row.When some rows of pile bear larger thrust,pile row distance shall be adjusted to make each row under reasonable stress.The study result is of important significance for optimizing design of anti-slide pile.

关 键 词：直线型滑坡 滑坡推力 抗滑桩 离心模型试验 

分 类 号：U213.152.1[交通运输工程—道路与铁道工程]