多次采动煤巷围岩稳定控制原理及应用  

Principle of Surrounding Rock Stability Control of Coal Roadway Influenced by Multiple Mining Activities and Its Application

作　　者：苏士龙[1,2] 梁军起[1] 靖洪文[1] 

机构地区：[1]中国矿业大学深部岩土力学与地下工程国家重点实验室,建筑工程学院,江苏徐州221008 [2]山西汾西矿业集团公司,山西介休市032300

出　　处：《矿业研究与开发》2008年第3期11-13,共3页Mining Research and Development

基　　金：国家自然科学基金重大项目(50490273、50674083);教育部重点科技项目(106085)

摘　　要：探讨了复杂困难条件下多次采动煤巷的维护及围岩稳定控制机理,提出了解决二次采动高应力困难煤巷支护与修复问题的技术途径。即应用"卸压"原理以及"高强预应力锚杆整体支护"和"关键部位加强支护"策略。并结合某矿区具体实例应用于工程实践,取得了良好的效果。In this paper, the mechanism of maintenance and stability control of surrounding rock of coal roadway influenced by multiple mining activities under complicated condition is discussed. The technical approach of supporting and maintaining coal roadway under the influence of secondary mining and high stress is put forward, it is to apply pressure - relief principle into the maintenance and supporting of surrounding rock of coal roadway, integrally support coal roadway using pre - stressed anchor with high strength and reinforce the key parts of coal roadway. This approach has been applied into the practical engineering at some mine, and good results have been obtained.

关 键 词：采动煤巷 卸压原理 整体支护 

分 类 号：TD325.1[矿业工程—矿井建设]