摘要
在综放工作面切眼及两道布置煤层钻孔,通过高压注双灰使破碎煤体和地质断裂构造裂隙得到充填、挤压、粘结和加固,从而减少工作面片帮漏顶事故发生的概率。
In the course of open--off cut and layout of drill hole in two lanes in fully mechanized caving face, --pressure lime flyash injection is applied to fill, extrude, bond and reinforce the cracks in broken coal body geological fracture structure, which reduces the possibility of rib fall accident in working face.
出处
《江西煤炭科技》
2013年第2期116-118,共3页
Jiangxi Coal Science & Technology
关键词
综放
高压注双灰
过断层
防治抽漏顶
fully mechanized caving face
high--pressure lime flyash injection
crossing fault high and
