Department of Production and Technology,Shanxi Jincheng Anthracite Mining Group Co.,Ltd.

针对我国村庄下厚煤层压煤量巨大的问题,提出进行分层充填开采、覆岩离层及垮落带断裂带注浆充填开采和村庄搬迁新模式开采,以解放村庄下厚煤层。在技术条件可行的前提下,对比分析了不同煤层厚度及不同村庄人口密度时3种开采方法的经济效益。结果表明:3种开采方法的经济利润随煤厚的增加均呈增长趋势,随村庄人口密度的增长均呈下降趋势,分层充填开采的利润增长或下降幅度最小,村庄搬迁方法的利润增长或下降幅度最大。村庄搬迁方法受2种因素的影响巨大,煤层越厚越有利于实施村庄搬迁方法,村庄人口越稀少,村庄搬迁的利润就越高。最后,总结了村庄下厚煤层开采方法选择时应遵循的原则。

According to the question of a huge amourt of tick coal seam unde vllages in China,layere lig mining,groutin rlig in overburden bed- separation and caving zone fractued zone and nev type of illege relocation were proposed.BEylayered fling mining .the thick calseam was dided into two lay ers or several ayers and which was mined with conventional illig nining method.Through groutin riling metod,th riling slurry could be grouted into the bed-separation under keystrata gap around gangue and crevice in the caving zone fractured zone and then th filing body was formed;whieh coud conirol overying strata activty, with the new ype ofollage relocation,the sustainable developing and moder illages to which th villages above no- mining cal seam were relocating w ere established on thestabe ground on mined- out werea, o thecalseam unde illages was ovrall.lerated. The anal sis ofthe three methds cononic profis showed that the economic profits of thee inds of mining methd all ad a growing trend with an increasing of coal seam thckness and a declining trend with a growing ofth illage's population density, And the profis for layere .ling mining had the smallest growth range or decline range wile profis fo illage relocation had the lagest. Fmally:the basc pricipes which should be followed when selecting mining methods for thick coal seam under villages were summarized.