论文部分内容阅读
现今,世界上的地下洞室设计方法很多,概括起来,可分为四大类:1.以围岩分类为基础的工程类比法;2.以物理模型为基础的实验分析法:3.以数学模型为基础的理论分析法;4.以现场量测为基础的监控评价法。 1.工程类比法 又称经验评价法,是通过工程实践总结而成的经验法则,现已发展成为岩石力学学科的重要分支——围岩分类。通常,围岩分类是把地下洞室周围岩体,按结构、成因、力学参数等因素划分成不同等级的类型,根据各种类型采用不同的支护型式。目前,世界上比较流行的围岩分类有:威克海姆的岩体结构评价法(RSR)、
Nowadays, there are many ways to design underground caverns in the world. Generally speaking, they can be divided into four major categories: 1. Engineering analogy based on surrounding rock classification; 2. Experimental analysis based on physical model: Mathematical model based on the theoretical analysis; 4 to field measurement-based monitoring and evaluation method. Engineering analogy, also known as experience evaluation method, is a rule of thumb that has been concluded through engineering practice. It has now developed into an important branch of rock mechanics - rock mass classification. Generally, the classification of surrounding rock is to divide the rock masses around the underground cavern into different grades according to the factors such as structure, origin, mechanical parameters and so on, and adopt different types of support according to various types. At present, the most popular wall rocks in the world are: the Rock Mass Structure Evaluation (RSR)