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以新疆乌鲁木齐碱沟煤矿立槽煤上部采空区结构与空间范围为探查目标,通过地面瞬变电磁法理论正反演数值模拟与现场实践,分析+495 m标高上部至地表+800 m标高立槽煤采空区的结构特征和空间分布范围,探测区西侧2处低阻异常分别对应碱沟矿工作面采空区和原安宁渠区煤矿采空区,东侧低阻异常为原安宁渠区煤矿采空区,西侧小矿采空区位于+518 m上部50 m内,结构规律;东侧小矿采空区位于+562 m上部50 m内,结构相对复杂。
Taking the structure and spatial extent of gob roof in the vertical coal seam of Urumqi coal seam in Urumqi, Xinjiang as the exploration target, through the numerical simulation and field practice of forward and inverse of the ground transient electromagnetic theory, the elevation of +495 m elevation to the elevation of +800 m The structural characteristics and spatial distribution of the gob-gob of the trough and the two low-resistivity anomalies on the west side of the exploration area correspond to the goafs of the caving mined-out face and the mined-out area of the coal mine in the original Anningquang respectively. The low resistivity anomaly in the east is the original tranquility The mined-out area of the coal mine in the drainage area and the small-area mined-out area in the west are located within the upper part of +518 m within 50 m. The structure of the small mined-out area in the east is within 50 m of the upper part of +562 m, and the structure is relatively complicated.