俯伪斜开采π放工作面收尾方案的确定  

Determination of Finishing Program at π Type Steel Caving Face in Pseudo-inclined Down Mining

作　　者：王振友 

机构地区：[1]鹤岗矿业集团富力煤矿,黑龙江鹤岗154103

出　　处：《煤炭技术》2008年第12期60-61,共2页Coal Technology

摘　　要：工作面与煤层走向成53°夹角俯伪斜π放的开采方式,降低了工作面的倾角,既符合新规程的规定,又实现大倾角π放工作面安全回采。但收尾时方案的确定对回采工作致关重要。When face and coal seam trend become 53° intersection angles, the mining way at π type steel caving face in pseudo - inclined down mining, reduces the face inclined angle, not only is in conformity with the determination of new standards, but also realizes the safe mining at the big inclined angle and n type steel caving face. It is very important for mining work to determine the finishing program.

关 键 词：大倾角 俯伪斜开采 收尾方案 

分 类 号：TD823[矿业工程—煤矿开采]