宁东煤田枣泉矿井综合物探效果

Integrated Geophysical Prospecting Effects in Zaoquan Mine,Ningdong Coalfield

为探明宁东煤田枣泉矿井首采区煤层自然范围及充水性,根据采区内地球物理物征,采用高精度磁法,直流电测深法和激发极化法进行综合勘探。在磁法勘探中结合测区曲线特征,建立数据体模型,正演计算烧变岩边界;电法勘探利用烧变岩含水后电阻率降低的特征确定其含水范围及富水性。

For prove up coal seam spontaneous combustion range and sufficiency in primary district of Zaoquan mine, Ningdong coalfield, based on geophysical signature in the district, we carried out integrated prospecting by the use of high precision magnetic prospecting, direct current sounding and induced polarization method. In magnetic prospecting, considering the curve characters in the area, established data volume model to forward modeling the burnt boundary. From the low resistivity character of the hydrated fritted rocks, we use electric method to block out water containing extent and water abundance.