“抗滑短桩”概念及其受力影响探讨  

Inquiring the Concept and Loading Influence of Short Anti-sliding Pile

作　　者：雷用[1] 郑颖人[1] 陈克勤 

机构地区：[1]后勤工程学院军事建筑工程系,重庆400041 [2]重庆市大渡口区房管局,重庆400084

出　　处：《地下空间与工程学报》2009年第3期608-615,共8页Chinese Journal of Underground Space and Engineering

摘　　要：采用ANSYS软件,分析了滑坡治理中抗滑短桩在滑体中和在嵌固段的最短长度,探讨了滑坡中滑带土、滑体土的参数C、φ、E和μ对抗滑短桩的受力影响;得出了几点认识:1)抗滑短桩在滑体中的最短长度不宜小于滑体厚度的1/4。2)抗滑短桩岩层嵌固段的深度不宜小于抗滑短桩总长的1/4,土层嵌固段的深度不宜小于1/3。3)探讨了算例中各参数变化与作用在抗滑短桩上的剩余水平下滑力之间的关系。同时,认为抗滑短桩的受力分析中,既要考虑滑带土参数影响又要考虑滑体土参数的影响,才是更接近于实际情况。Adopting ANSYS software,this paper analyzes the most short length of anti - shding pile in sliding body and in anchored parts. Force influences on short anti - sliding pile with some parameters of sliding body soil and sliding belts soil, such as C,φ,E and μ, are inquired. Some ideas are obtained： 1 ）The most short length of anti- sliding pile in sliding body should not less than 1/4 thickness of sliding body. 2 ）The most short length of anti-sliding pile in anchored parts should not less than 1/4 length of pile in anchored rock body, and not less than 1/3 length in anchored soil body. 3 ） This paper mainly inquires relation between forces on short anti-sliding pile with calculation parameters such as C,φ,E andμof sliding belts and sliding body. At the same time, the analysis of forces on short anti-sliding pile is more close to actual condition which considers both parameters of sliding belts and sliding body.

关 键 词：滑坡 抗滑短桩 越顶 嵌固段长度 计算参数 

分 类 号：TU473[建筑科学—结构工程]