“三下”压煤开采方案优化设计

Optimization and Design for Mining under Building,Railway and Water Body

介绍了济宁二号煤矿十采区"三下"压煤工作面布置方式和开采顺序优化。依据本区的地质采矿现状、方案的地表移动与变形分析,结合地面受护物临、迁建路线的优化选择,在对少部分受护物加固、维修的条件下,对十采区"三下"采煤的可行性、开采方案等进行了评价与设计,实现十采区"三下"压煤的安全、高效开采,解放压煤量约20Mt。

This paper addressed the planning of coal panels under buildings and the optimization of mining sequence of panels in No.10 Mining District,Jining No.2 Coal Mine.Based on the geological and mining conditions,subsidence analyses of different mining schemes,and the optimization of temporary or restructuring routes designed for protected buildings,on the condition of some buildings being reinforced and repaired,this paper evaluated the feasibility of the mining operation under buildings and designed the mining method for No.10 Mining District,the goals of safety and high efficiency have been realized,and 20Mt coal will be extracted in this district.