Π型钢工艺在多煤层特殊地段的应用  

Application of Π-type Steel Technique in Multi-Seam special place

作　　者：杨志全 邢江龙 

机构地区：[1]黑龙江龙煤矿业集团鹤岗分公司富力煤矿,黑龙江鹤岗154103

出　　处：《江西煤炭科技》2010年第4期37-38,共2页Jiangxi Coal Science & Technology

摘　　要：Π型钢放顶煤技术是适用于较厚煤层、煤质较松散的煤层开采的一种方法,本文就两个煤层因受断层影响,巧合成一个小块段,再用Π型钢进行了成功开采。Π-type steel carving technology is a mining method applicable to thick seam with loose coal quality.The paper introduces the merger of two-layer coal seam into a small section influenced by faults,which has been successfully extracting byΠ-type steel technique.

关 键 词：Π放工艺 二层煤合并 小块段开采 防灭火 

分 类 号：TD823.99[矿业工程—煤矿开采]