Study on Stability of Layered Roof Surrounding Rock Reinforced by Anchor in Rectangular Roadway

被引：0

作者：

Zhao, Zhongming ^{[1
]}

Xi, Zhiyuan ^{[1
]}

机构：

[1] Henan Polytech Univ, Sch Energy Sci & Engn, Jiaozuo 454003, Peoples R China

来源：

PROGRESS IN INDUSTRIAL AND CIVIL ENGINEERING III, PT 1 | 2014年 / 638-640卷

关键词：

Rectangular roadway; Stress distribution; Loose circle; Anchor cable; Roof stability;

D O I：

10.4028/www.scientific.net/AMM.638-640.864

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Under the assumptions of plane strain, vertical normal stress and shear stress distribution in surrounding rock of rectangular tunnels before and after installing anchor cable are studied. And according to the mechanics of materials, the formula of stress distribution in the roof is corrected. According to the corrected formula of the stress distribution, the dangerous points are found. And the dangerous point location does not change before and after installing anchor cable. It still locates in the middle and ends of roadway roof. Just the dangerous stress value decreases after installing anchor cable. There are the maximum tensile stress in the midpoint roof and the maximum shear stress on both ends of the roof.

引用

页码：864 / 869

页数：6

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