圆形洞室岩爆成因分析及其地质灾害研究  

Causes of rock burst in circular chambers and its geological disaster analysis

作　　者：缪晓军 吴继敏[2] 李景波[2] 

机构地区：[1]广州市水利局,广东广州510640 [2]河海大学土木工程学院,江苏南京210098

出　　处：《河海大学学报（自然科学版）》2002年第5期37-40,共4页Journal of Hohai University(Natural Sciences)

摘　　要：在详细分析岩爆形成机制和传统经验判据的基础上 ,对岩爆产生条件及其产生部位作了预测 ,并提出了岩爆预防对策 :设计阶段应对洞轴线进行选择、对洞室断面进行优化 ;施工阶段应进行超前应力解除、围岩软化 ,以及采用合理的开挖方式 ;合理选择围岩加固措施 .Based on the analysis of the conventional criteria for and formation mechanism of rock burst, the conditions under which rock burst takes place and positions of rock burst are predicted. Besides, some countermeasures are proposed for prevention of rock burst, including reasonable determination of the chamber axis and optimization of the chamber section in the design stage, and pre elimination of stresses, softening of adjoining rocks, and reasonable determination of the excavation mode and reinforcement measures in the construction stage.

关 键 词：圆形洞室 岩爆 成因 地质灾害 

分 类 号：P633.2[天文地球—地质矿产勘探]