工作面采动稳定区顶板围岩采动裂隙发育范围研究  

Study on Mining-induced Fissure Development Scope in Roof Surrounding Rock in Stable Mining Area of Working Face

作　　者：程昊[1,2,3] 高娜娜 李日富[1,2] 江万刚[1,2] 

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [2]中煤科工集团重庆研究院有限公司瓦斯研究分院,重庆400037 [3]贵州安和矿业科技工程股份有限公司,贵州贵阳550023 [4]重庆顺安爆破器材有限公司,重庆400713

出　　处：《矿业安全与环保》2015年第4期17-20,共4页Mining Safety & Environmental Protection

基　　金："十二五"国家科技重大专项(2011ZX05063-03);重庆市自然科学基金项目(cstc2012jj A90002)

摘　　要：为了考察工作面回采过后采动稳定区顶板围岩裂隙发育情况,采用"钻孔双端封堵测漏装置"钻孔分段注水法,通过观测不同方位的钻孔及不同孔深的注水漏失量,来分析钻孔不同深度处岩层的采动裂隙发育情况,判断测试地点的采动稳定区顶板围岩采动裂隙发育边界范围。在渝阳煤矿进行现场试验,通过钻孔分段注水,分析出该矿N21110工作面采动稳定区顶板岩层的采动裂隙发育范围及裂隙发育程度。In order to examine the fissure development in the roof surrounding rock in the stable mining area of the working face,analysis was carried out on the fissure development of the borehole rock strata in different depths by adopting the sectional borehole water injection with the＂end- blocked borehole leakage detection device＂and observing the water leakage of boreholes in different directions and different depths,and the judgment was made on the boundary scope of the mining- induced fissure development in the roof surrounding rock of the stable mining area at the test site. On- the- spot test was conducted in Yuyang Coal Mine,and analysis was done on the development scope and degree of the mining- induced fissures in the roof surrounding rock in stable mining area of N21110 working face of the mine.

关 键 词：分段注水 注水深度 漏失量 顶板岩层 裂隙发育范围 

分 类 号：TD327.2[矿业工程—矿井建设]