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近距离采空区下回采巷道锚网索支护技术研究
发布人:网站管理员 发布时间:2022/1/20 点击次数:71次
  

近距离采空区下回采巷道锚网索支护技术研究
王亚东
(山西凯嘉能源集团有限公司,山西 介休 032000)
摘要: 倡源煤业公司110503 工作面属于近距离采空区下回采,层间距离10 m左右,工作面两巷存在“内错、外错、
重叠”三种布置方式。以110503 工作面运输顺槽为工程背景,采用FLAC 数值模拟以及围岩松动圈测试办法,对其巷道
支护技术开展研究,确定支护方式。通过现场施工及实际观测,支护设计方案安全可行,有效缓解了巷道矿压显现,实
现了对巷道的稳定控制。
关键词: 近距离采空区下;锚网索支护;内错;外错;重叠
中图分类号: TD353     文献标识码: A     文章编号: 2095-0802-(2022)01-0081-06
Study on Bolt-mesh-anchor Support Technology of Mining Roadways under Close Goaf
WANG Yadong
(Shanxi Kaijia Energy Group Co., Ltd., Jiexiu 032000, Shanxi, China)
Abstract: The 110503 working face of Changyuan Coal Industry Company belongs to the mining under the close goaf, and the
interlayer distance is about 10 m. There are three layout modes of "internal dislocation, external dislocation and overlap" in the
two lanes of the working face. Taking 110503 working face as the engineering background, this paper studied the roadway support
technology and determined the support mode by using FLAC numerical simulation and surrounding rock loose circle test method.
Through field construction and actual observation, the support design scheme is safe and feasible, effectively alleviates the
roadway ground pressure behavior, and realizes the stability control of the roadway.

Key words: under close goaf; bolt-mesh-anchor support; internal dislocation; external dislocation; overlap