摘要
本文系统介绍了预应力锚杆肋梁的受力特点,分析了预应力锚杆肋梁的受力机理,并应用于深基坑支护工程,采用有限元方法对预应力锚杆肋梁支护的基坑进行数值计算,得出纵横梁的弯矩及面层的位移,弥补了传统方法的不足,将计算结果与传统的锚桩支护方法进行对比,表明在护坡桩桩端无法嵌入的情况下,采用预应力锚杆肋梁支护是一种经济、可靠的方式。
In this paper authors characterized stress and loading mechanism of pre - stressed anchor - rod cross coupling in supporting deep foundation pit. Finite element method is used to simulate stress distribution in foundation pit supported by such beam. The moment of flexure of the beam and displacement of surface layer are also calculated, which overcomes disadvantage of traditional methods. By comparing simulated results with traditional anchor- pile supporting method the authors concluded that it is an economic and reliable way to apply pre -stressed anchor - rod cross coupling when the end of slope - protection pile cant be driven into the foundation.
出处
《工程地质学报》
CSCD
2005年第4期568-572,共5页
Journal of Engineering Geology
关键词
预应力锚杆
肋梁
支护结构
基坑
Pre - stressed anchor - rod, Cross coupling, Supporting structure, Foundation pit
