大埋深高地压建筑物下条带开采方案研究

Study on deep and high pressure strip mining planning below buildings

星村煤矿煤层埋藏深,地压大,地质构造复杂,地面村庄压煤占井田面积的80%。从经济技术方面比较,条带开采法是首选的采煤方法。根据当前条带开采最新研究成果,提出了星村煤矿开采条带宽度及留设煤柱宽度,并通过煤柱的宽高比、煤柱承受的极限荷载及实际荷载、煤柱的安全系数等进行检核,最终确定了方案设计。

The coal beds of Xingcun coal mine lie deeper under the ground and with high ground-pressure from above layers, about 80 percent areas under structures, so stirpped-mining method is the first alternative according to the analysis in economics and technology. This article gives the sizes of mining-stripes and coalblocks on the bias of studding latest technologies, on the other hand, by checking the breadth high ratio, the extreme limit bearing capacity and actual bearing capacity, the safety factor of the coalblocks, then gets the coal-mining project design.