横山区殿市镇水坝滩煤矿采空区分布勘查

Distribution and Exploration of Goaf in Dianshi Town,Hengshan District,Shuibatan Coal Mine

为查清榆林市地方煤矿采空区分布范围、煤矿井田内地表区域中水与火、采空区塌陷与悬顶等安全隐患以及重要建(构)筑物的分布情况,为了实现对采空区内火灾的有效预防以及控制,在采空区治理过程中实现对科学依据的提供。以陕西横山县为参照物,横山区水坝滩煤矿处在其东北方向,两者之间大约具有18 km的距离,行政区划隶属殿市镇管辖。该矿确定2处区域进行物探勘查,以采空区为处理对象,对其分布规律进行探索。通过对高密度直流法以及瞬变电磁法等方法的综合运用来进行物探施工,设计物探面积1.2364 km^(2),实际完成物探面积1.2364 km^(2)。野外作业共完成瞬变电磁法测线35条,测线总长度32200 m,物理点1711个;高密度直流电法测线10条,测线总长度6000 m,物理点634个。经资料处理解释并结合地质、采掘工程及实地踏勘调查等资料,物探勘查区域A区内推断解释了3处采空积水区,1处疑似采空积水区,面积共计约231040 m^(2)。物探勘查区域B区内推断解释了2处采空积水区,面积共计约201186 m^(2)。

In order to find out the distribution range of local goaf in Yulin coal mine,water and fire in the surface area of coal mine field,goaf collapse and hanging roof and other safety hazards,as well as the distribution of important structures(structures),in order to achieve effective prevention and control of fire in goaf,in the process of goaf treatment to provide scientific basis.Taking Hengshan County of Shaanxi Province as a reference,the Dam Tan Coal Mine in Hengshan District is located in the northeast direction of it,and there is a distance of about 18 kilometers between them.The administrative division is under the jurisdiction of Dian Town.Two areas of the mine are determined for geophysical exploration,and the goaf is taken as the object of treatment to explore its distribution law.Through the comprehensive application of high-density DC method and transient electromagnetic method,geophysical exploration construction is carried out.The designed geophysical exploration area is 1.2364 km^(2),and the actual geophysical exploration area is 1.2364 km^(2).A total of 35 TEM lines were completed in field work,with a total length of 32200 m and 1711 physical points.There are 10 high density direct current measurement lines with a total length of 6000 m and 634 physical points.After data processing and interpretation,combined with geology,mining engineering and field survey,three mined-out waterlogged areas and one suspected mined-out waterlogged area in the geophysical exploration area A were inferred and explained,covering a total area of 231040 m^(2).In B area of geophysical exploration,two mined-out waterlogging areas with a total area of 201186 m^(2) were inferred and explained.