大采高综放覆岩运动形式与矿压显现规律研究  

Study on Movement Law of Overlying Strata and Mine Pressure Appearance of Large Mining Height Fully Mechanized Top Coal Caving

作　　者：肖江[1,2] 杨浩[1] 梅玉剑 聂尧[1] 丁自伟[1,2] 

机构地区：[1]西安科技大学能源学院,西安710054 [2]教育部西部矿井开采及灾害防治重点实验室,西安710054

出　　处：《煤炭技术》2016年第12期7-9,共3页Coal Technology

基　　金：国家自然科学基金(51504183);陕西省自然科学基础研究计划(2015JQ5132)

摘　　要：通过对鄂尔多斯龙王沟煤矿6煤进行大采高大放高(采5 m放15 m)开采相似材料模拟对比实验得到,在6_上煤未采情况下6煤工作面支架额定阻力为15 000 k N时可以保证工作面的安全生产,在6_上煤已采情况下,6煤工作面矿压显现十分剧烈,液压支架频繁压死并出现"天量"工作阻力,频繁出现拱结构超前于工作面的情况,工作面煤壁出现贯穿竖向断裂裂隙,严重片帮。证明了在6_上煤采空区下进行6煤大采高综放开采不可行。Through to the Longwanggou 6 coal＇s similar material simulation experiment, mining full-seam for 20 m. The results show that when 6up coal not mining the support power is 15 000 kN can ensure the safety production of working face. When 6up coal is mining working face mine pressure appear very intense, hydraulic support pushed down exceed the rated working resistance and and frequently appear enormous working resistance, trapezoidal arch structure appears frequently in front of working face, coal wall appeared throughout the vertical fracture cracks, with serious rib spalling. It is proved that the 6 coal mining under the 6up coal mining gob is not feasihlr.

关 键 词：相似材料模拟实验 梯形拱结构 矿压显现 综放工作面 

分 类 号：TD322[矿业工程—矿井建设]