巨厚煤层沿底掘进巷道支架变形原因及对策  

Causes and Countermeasures of Support Deformation in Roadway Driving Along Seam Floor in Extra-thick Seams

作　　者：刘景书 

机构地区：[1]义马煤业集团公司千秋煤矿,河南义马472300

出　　处：《煤炭技术》2007年第11期56-57,共2页Coal Technology

摘　　要：针对巷道掘成后不到6 M就开始变形的现象,进行了受力分析,找出了变形的原因,采用增加柱腿扎脚、更换11#矿用工字钢拱型支架为36#U型钢等解决办法,起到了良好的作用,为矿井节省了大量的人力、物力和财力。Aimed at the phenomenon of beginning deformation after finishing roadways driving less than six month , the force analysis is in progress, the deformation causes are found out. Using the solved methods of increasing the legs - foot - binding, replacing 11 # mine joint steel arch support by 36 U type steel, plays a good role, saves a lot of human, material and financial resources.

关 键 词：煤层 巷道 支架变形 

分 类 号：TD353[矿业工程—矿井建设]