本文介绍了应用三维地震及电磁法探测采空区边界及含水性的技术方法与地质效果。
The method for the exploration of the mined-out areas by using 3D seismic and electromagnetic laws and its effect are introduced.
准确掌握采空区边界形态，弄清采空区在固体矿产矿床中的分布是矿区管理的基础性工作。
The grasp of mined-out area shape and the distribution of solid minerals in mined-out area is the important basic work for mineral management.
采区边界煤柱控制走向方向的上覆岩层破坏范围，采空区边界三角煤柱控制倾斜方向的上覆岩层滑移变形，最终达到控制地表沉陷的目的。
With barrier pillars to decrease the strata movement along the strike, and goaf triangle pillars to decrease the strata slipping along the dip, surface subsidence could be preferably controlled.
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