急斜煤层浅部矿震机理及防治  

Mechanism of mine-induced earthquake at shallow part of steep coal seam and prevention measures

作　　者：肖江[1,2] 王金安[1] 索永录[2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京10083 [2]西安科技大学能源学院,陕西西安710054

出　　处：《辽宁工程技术大学学报（自然科学版）》2010年第1期13-16,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：教育部高等学校博士学科点专项科研基金资助项目(20040008025)

摘　　要：为了防治急斜煤层浅部综放开采出现的矿震灾害及深刻理解其机理,采用物理相似模拟实验进行了研究。研究结果表明,急斜煤层浅部矿震机理为单个煤柱失效后,进而引起采场煤柱连锁失稳,最终导致巨厚覆岩大面积垮落,产生矿震,其本质是空间结构失稳造成,由此提出"空间结构破坏型矿震"观点;结合生产实际,提出控制此类矿震的关键在于控制综放段上覆浮矸厚度,留设足够厚度的隔离煤柱和提前预爆破顶板的防治措施。In this study, a physical simulation experiment was conducted to investigate the mine-induced earthquake phenomenon. The purpose of this study is to understand the mechanism of mine-induced earthquakes and prevent the disaster of mine-induced earthquakes in steep coal seam. The mechanism of the mine-induced earthquake was concluded that if a single coal pillar is disabled, all coal pillars will be soon disabled, and then eventually huge thick overlying rock will collapse and disabled space frame. Therefore the study suggests a earthquake＂. In mining practice, the key in controlling cause the earthquake. The nature of the problem is the new theory of ＂space frame destructed mine-induced mine-induced earthquake is to control the thickness of waste rock pile above the section of fully mechanized long-wall top caving. The prevention measures are proposed as leaving coal pillars and blasting roof in advance to enable appropriate thickness of waste rock pile.

关 键 词：矿震 空间结构 综放 房柱式开采 

分 类 号：TD32[矿业工程—矿井建设]