摘要
为解决深部复杂地质条件矿井冲击地压问题,以福兴煤矿二号井为研究对象,冲击倾向性试验测定表明,工作面煤层不具有冲击倾向性,而煤层顶底板岩层均具有弱冲击倾向性。通过分析可知矿井冲击地压主要影响因素为煤层倾角、开采工艺、开采深度、顶板岩层的结构特点、地质构造等。结合影响因素采取合理布置工作面、危险区域预处理、回采过程中应力监测和及时卸压解危等措施,有效防止了矿井冲击地压事故的发生。
In order to solve rock burst problem of deep complicated geological condition mine ,taking Fuxing No.2 Mine as a study object. Rock burst tendency testing results showed that the coal seam had no rock burst tendency while the roof and floor strata had weak rock burst tendency.This paper pointed out that the main influence factors of rock burst were angle of seam, mining technology, mining depth, structural features of roof strata, geological formation.In view of the influence factors, some measures had been taken, including reasonable arrangement of working face, pretreatment of dangerous area, stress monitoring in the process of mining, timely relieve of the danger, these measures effectively prevented the rock burst accidents.
出处
《煤炭科学技术》
CAS
北大核心
2013年第10期26-29,共4页
Coal Science and Technology
关键词
冲击地压
急倾斜煤层
冲击倾向性
综合防治
rock burst
steep seam
rock burst tendency
comprehensive prevention and control
