独立微型群桩在公路滑坡中的应用分析

The Application Analysis of Independent Micro Pile Group in Highway Landslide

鉴于独立微型桩在公路滑坡应急抢险及辅助加固使用中的紧迫性和必要性,分别从独立微型桩的布置形式、桩土耦合关系两方面对其受力机理及应用条件进行分析。基于土质滑坡,采用FLAC3D内置桩单元进行数值模拟试验研究,阐述了桩单元分析的关键和不同桩间距下微型群桩受力特性。同时,借鉴微型群桩加固公路边坡成功的案例,分析了成功的关键,供设计参考。

In view of that it is very urgency and necessary for independent micro pile in rush emergency for highway landslide,this paper separately from the arrangement form and pile- soil coupling relationship to analysis the stress mechanism of the independent micro pile. Based on the soil landslide,using the FLAC3 Dto do the numerical simulation,this paper discribes the mechanical characteristics when the piles at different distances and the important of pile elements when it is used to do the analyze. Moreover,this paper also references the successful case of the independent micro pile used in the highway landslide,analysis the key to successful,taking the references for design.