Study on Grouting and Bolting Reinforcement Method and Its Application to Collapse Area in ransport Roadways
The grouting and bolting reinforcement method is widely used for ground support in underground mines. In the present study, the rock support mechanism of grouting in combination with bolting device is studied, and subsequently the key technical issues associated with this support approach are analyzed. Based on a practical case of the collapse area of the main transport roadway at a underground mine in China, a systemic support design is proposed and used to control the development of collapse area. Meanwhile, a 3D numerical modeling with FLAC3D is utilized to simulate the stability of surrounding rock mass after supporting. By calculating the displacement of surrounding rock and the change of maximum unbalanced forces, the stability of the collapse area of the roadway has a great improvement after applying the grouting and bolting reinforcement method, and the operation safety of the transport roadways can be guaranteed effectively.
collapse area bolt and grouting reinforced method numerical simulation stability analysis
SUI Zhili QIAO Lan LI Yuan YANG Zhijun
School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, China
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
2254-2259
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）