摘要
祁东煤矿6130综采工作面过机巷高冒段时,提前向高冒段巷道顶板及上帮注浆充填,待顶、帮稳固后,采用了工字钢棚对U型棚进行替棚的综合支护方式。随工作面推进,采用半圆木配合液压单体架设倾向棚一梁两柱,逐次替换工字钢棚。采用该支护方式,有效地支护了顶板,同时大大减少防治片帮、漏顶所使用的材料,取得较好的经济效益。
When 6.130 working face passing top-coal caving region,the following comprehensive support system is used.Grouting filling to the tunnel roof and upper coal side in advance,then substituting h steel support for U type shed when the top and coal side have been firm.As the promoting of the face,tendency shed of one girder and two pillar set up with half round timber and single prop are used to replace the h steel support shed.By using the support system,the roof of working face is supported effectively and the materials to be used for prevention of coal slide and leaky roof are greatly reduced,which obtains good economic benefit.
出处
《山东煤炭科技》
2010年第6期33-34,共2页
Shandong Coal Science and Technology
关键词
注浆充填
高冒段
工作面片帮
综合支护
grouting filling
top-coal caving region
coal slide of the face
comprehensive support
