摘要
巷道围岩是一种复杂地质体,表现出弹性、弹塑性、粘弹性、粘塑性等多种力学特性。试图用一种理论来解决现场遇到的不同岩性条件和工程环境下的巷道支护问题是十分困难的。因此,多年来在巷道支护理论研究方面出现了多种多样的理论学派和计算方法。每种方法都有各自特点,主要对三种设计理论进行了对比分析,指出了各自的优缺点。
The surrounding rock of roadway is a kind of complex geologic body showing the mechanics characteristic of elasticity, elasto-plastic, visco-plastic and so on. Try to use one theory to setlle the problem of roadway underlied by different geology condition is very difficulty, so recently there are many theories and caculation method, in design. Each have its own feature. This article mainly discuss about three design theories pointing out its advatage and disadvantage.
出处
《土工基础》
2006年第2期58-61,共4页
Soil Engineering and Foundation
关键词
锚杆
支护设计
围岩松动圈理论
中性点理论
地应力
bolt, bracing design, loose circle theory of surrounding rock, neutral point theory, field stress
