石村矿村庄保护煤柱留设方法的对比研究

Comparative Study on Design Method of Village Protective Coal Pillar in Shicun Coal Mine

保护煤柱是指专门留设在井下不予采出的、目的是保护其上方岩层内部和地表的保护对象不受开采影响的煤炭资源。保护煤柱的留设方法主要有两种:垂直断面法和垂线法。选择合理的留设方法对高效利用煤炭资源、保障煤矿生产安全有重要意义。本文以石村矿村庄保护煤柱的留设为例,对垂直断面法和垂线法进行压煤量对比,确定该矿村庄保护煤柱设计所选用的垂线法是比较合理的留设方法,以最少的压煤量保证了矿井的安全生产。

Protective coal pillar is the coal resources that specially unexploited, to avoid the above coal strata inner and the object on surface affected by mining. Design method of protective coal pillar mainly has two kinds that are vertical section method and normal line method. It is important of choosing the reasonable design method to efficiently use coal resources and ensure coal mine safety production. The design of Shicun coal mine village protection coal pillar is as the example, contrasts the coal pressed of vertical section method and normal line method. It provides the basis for reasonable