Analysis of surrounding rock stability of deeply buried roadways and study on its control techniques

被引：0

作者：

Jing Hong-wen ^{[1
]}

Li Yuan-hai ^{[1
]}

Xu Guo-an ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Architecture & Civil Engn, Xuzhou 221008, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2005年 / 26卷 / 06期

关键词：

deeply buried roadway; surrounding rock stability; broken zone; 'three bolting' support;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Based on the rock characteristics of strain-softening and dilatancy, this paper developed a theoretical formula for calculating broken zone thickness of roadways, analyzed the influence of buried depth, rock strength, strain-softening extent, and support pressure on the surrounding rock stability of the deeply buried roadways. The new concept of ` three bolting' support is put forward, which refers to a supporting method combining bolt and shotcrete, grout, and anchorage cable. This new supporting method has been applied to engineering practice; and favorable technical and economic benefit is obtained.

引用

页码：877 / +

页数：5