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沿空留巷是指上区段采煤工作面回采期间沿采空区边缘维护原区段运输巷巷道作为下区段回风巷巷道的技术。经贵州盘南煤炭开发有限责任公司响水煤矿的实践证明,该支护技术能有效控制围岩的变形与失稳,并取得良好的技术、经济效果。
Gob-side entry retaining refers to the technology of maintaining the laneway of the original section of transportation lane along the edge of the goaf during the mining of the coal section of the upper section as the laneway of the return air passageway of the lower section. The practice of Xiangshui Mine of Guizhou Pannan Coal Development Co., Ltd. has proved that the supporting technology can effectively control the deformation and instability of surrounding rock and achieve good technical and economic results.