摘要
抗滑桩设计荷载包括滑坡推力和抗滑桩桩前抗力,桩前抗力在水平方向上被认为是均匀分布的,为研究桩前滑体抗力的分布规律,在分析抗滑桩与桩间土体相互作用的基础上,利用FLAC-3D有限差分软件,进行计算。计算结果表明,桩前抗力在水平方向上呈现中间大两边小的趋势,分布规律与桩间距、滑坡推力、桩截面尺寸、土体参数等因素有关。按目前规范推荐的方法,抗滑桩的结构设计是偏不安全的。
The design load of anti-slide piles includes landslide thrust and resistant force in front of anti-slide piles,which is considered to be evenly distributed in the horizontal direction.In view of the analysis on interaction of anti-slide piles and soil between piles,the distribution law of the resistant force is studied with FLAC-3D finite difference software.The results show that the resistant force in the horizontal direction has the trend of strong in the middle and weak on both sides,and the distribution law is related with pile spacing,landslide thrust,cross-section dimensions,soil parameters and other factors.The structural design of anti-slide piles is unsafe based on the recommended method of design code.
出处
《人民长江》
北大核心
2011年第22期38-41,共4页
Yangtze River
关键词
桩前抗力
分布形式
抗滑桩
设计荷载
resistant force in front of anti-slide pile
distribution law
anti-slide pile
design load
