综合电法勘探在煤矿多层采空积水区的应用
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摘要
以山西晋中某煤矿为例,以瞬变电磁法为主,激发极化法为辅,对该矿2~#、4~#和9~#煤层的采空积水区进行勘探。通过对已知采空区试验工作,确定了该区2种方法的工作参数及可行性。并以采区120线的数据资料进行对比分析,验证2种勘探方法解释结果的一致性。根据视电阻率顺层切片图,圈定了该矿各层采空积水区的范围,以证明综合电法勘探的可行性。
A case study of a coalmine in Jinzhong, Shanxi, the TEM and induced polarization method have been used to detect gob ponding area of No. 2, No. 4 and No. 9 coal seams of this mine.Working on known gobs determined the working parameters and feasibility of the two methods.The data of line No.120 in mining area carried out comparative analysis, to verify interpretation results consistency from the two methods. According to the apparent resistivity slice map,the scope of coal layers gob ponding was delineated to demonstrate the feasibility of integrated electrical prospecting.
A case study of a coalmine in Jinzhong, Shanxi, the TEM and induced polarization method have been used to detect gob ponding area of No. 2, No. 4 and No. 9 coal seams of this mine.Working on known gobs determined the working parameters and feasibility of the two methods.The data of line No.120 in mining area carried out comparative analysis, to verify interpretation results consistency from the two methods. According to the apparent resistivity slice map,the scope of coal layers gob ponding was delineated to demonstrate the feasibility of integrated electrical prospecting.
引文
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[10]周多,陈安霞,董再民,等.激发极化法在辽宁本溪某矽卡岩型铜多金属矿勘查中的应用[J].地质与勘探,2016,52(4):688-694.
[2]祁民,张宝林,梁光河,等.高分辨率预测地下复杂采空区的空间分布特征———高密度电法在山西阳泉某复杂采空区中的初步应用研究[J].地球物理学进展,2006,21(1):256-262.
[3]余传涛,刘鸿福,高建平.双频激电法在探测煤矿采空区的尝试[J].地球物理学进展,2008,23(5):1 603-1 609.
[4]柳建新,罗曦,童孝忠,等. EH4时频数据联合处理及其在煤矿采空区的应用[J].地球物理学进展,2012,27(5):2 160-2 167.
[5]卫红学,查文锋,冯春龙.采空区上地震时间剖面的特征分析[J].地球物理学进展,2014,29(4):1 808-1 814.
[6]唐振宇,张华,龚育龄.瞬变电磁成像技术在采空区积水探测中的应用[J].工程地球物理学报,2015,12(5):633-636.
[7]郭文峰,曹志勇,卫红学,等.塌陷采空区的正演模拟及波场分析[J].地球物理学进展,2015,30(2):847-852.
[8]许新刚,岳建华,夏书兵,等.多层采空积水区瞬变电磁响应研究[J].中国煤炭地质,2017,29(4):73-77.
[9]李建慧,朱自强,曾思红,等.瞬变电磁法正演计算进展[J].地球物理学进展,2012,27(4):1 393-1 400.
[10]周多,陈安霞,董再民,等.激发极化法在辽宁本溪某矽卡岩型铜多金属矿勘查中的应用[J].地质与勘探,2016,52(4):688-694.