特厚煤层沿底板掘进巷道及大断面切眼锚网支护研究与实践  

Research and practice of bolt-mesh support in tunneling roadway along bottom and large-section cut in extremely-thick coal seam

作　　者：张庆华 

机构地区：[1]开滦(集团)唐山矿业分公司,河北省唐山市063000

出　　处：《中国煤炭》2014年第12期46-48,共3页China Coal

摘　　要：唐山矿业公司特厚煤层放顶煤开采工作面巷道沿底板托煤顶布置,T2193工作面运输巷、回风巷为小煤柱沿空送巷,工作面切眼断面尺寸7600mm×2800mm(宽×高)。分析了3条巷道原支护参数的不足,提出改进方案应采用锚网联合支护技术。介绍了锚网联合支护技术参数及施工工艺。The roadway of caving mining face in extremely-thick in Tangshan Mining Branch Co.,is laid out by supporting top coal along the bottom;the haulage roadway and the return air-way of the T2193 face is the driving roadway along goaf with small coal pillars;the size of the working face cut section is 7600 mm×2800 mm （width×height）.In the paper,the deficiency of original support parameters of 3 roadways is analyzed,and an improved scheme of using bolt-mesh combined support technology is proposed.And the parameters and construction process of the combined support technology are introduced.

关 键 词：特厚煤层 工作面巷道 巷道掘进 巷道支护 锚网联合支护 

分 类 号：TD353[矿业工程—矿井建设]