急倾斜、中厚煤层巷道掘进支护技术

以新铁煤矿五采区50煤层左七片60508队综掘机施工的降段中采用支护技术和稳定性研究为实际工程背景,分别对新掘巷道和已掘破坏巷道两类工程进行研究。在综合分析已掘巷道破坏原因的基础上,根据工程类比法,提出了已掘巷道支护设计的基本方案,从而为新掘巷道的施工做了必要的准备。通过选择合理的支护方式,提高了巷道的掘进速度,同时有效地控制了顶板离层、冒顶现象和片帮现象的发生,达到了巷道支护的预期效果。

Support Technology of Roadways Driving in Steep Middle Thick Coal Seam

Taking the support technology and stability study as a practical engineering background,which were used in the section of fully machine-de-sac construction,in left No.7,60508 team in No.50 coal seam,in No.5 mining area,in Xintie Coal Mine,two types of projects of the new roadway and damaged roadway were studied.On the basis of comprehensive analysis on the damaging causes of drived roadways,according to the engineering analogy,the basic program of support design on the drived roadway were pointed out.So the...