Numerical Investigation on Factors Affecting Stability of Roadway Surrounding Rock with Fractured Roof

被引：14

作者：

Ding, Ke ^{[1
,2
,3
]}

Gu, Shitan ^{[1
,2
,3
]}

Guo, Jiaxing ^{[1
,2
,3
]}

Gu, Dong ^{[1
,2
,3
]}

Liu, Zheng ^{[1
,2
,3
]}

Wei, Baozhen ^{[1
,2
,3
]}

机构：

[1] Shandong Univ Sci & Technol, State Key Lab Min Disaster Prevent & Control Co F, Qingdao 266590, Shandong, Peoples R China

[2] Shandong Univ Sci & Technol, Minist Sci & Technol, Qingdao 266590, Shandong, Peoples R China

[3] Shandong Univ Sci & Technol, Coll Min & Safety Engn, Qingdao 266590, Shandong, Peoples R China

来源：

GEOTECHNICAL AND GEOLOGICAL ENGINEERING | 2019年 / 37卷 / 04期

关键词：

Roadway stability; Main control factor; Roof fracture; Numerical simulation; Stability; FAILURE-MECHANISM; COAL; SUPPORT;

D O I：

10.1007/s10706-018-00762-4

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Based on the feature of roadway surrounding rock with fractured roof, the influencing factors on the stability of roadway surrounding rock with fractured roof were analyzed. It was found that the main controlling factors affecting the deformation and failure of roadway surrounding rock with fractured roof are ground stress, roof strength and joint properties. Thus, numerical software UDEC was used to investigate these factors on the stability of roadway surrounding rock. Numerical results indicate that the greater the ground stress, the greater the roadway deformation. The weaker the roof strength, the larger the roadway deformation range. Roadway deformation increases rapidly with decreased joint properties.

引用

页码：2373 / 2385

页数：13

共 16 条

[1] Shear strength criteria for rock, rock joints, rockfill and rock masses: Problems and some solutions [J].