近采空区巷道围岩支护技术研究
杜强
（山西焦煤西山煤电杜儿坪煤矿，山西 太原 030022）
摘要： 山西一煤矿6307 运输巷在近采空区段内掘进时受伪顶厚度增大、地质构造及采空区内应力等多因素叠加影
响，导致巷道围岩变形量较大、原支护体系中锚杆（索）失效和顶板冒落等问题。在分析运输巷围岩变形特征、松动圈
范围等的基础上，提出掘进时留设顶煤给顶板伪顶一定的支护作用力、采用短掘短支方式减少悬空面积，同时通过强化
顶板锚索支护、增大护表强度等方式，提高围岩控制效果。现场应用后，6307 运输巷在近采空区段掘进时围岩及支护体
系保持稳定，实现了对巷道变形的有效控制。
关键词： 巷道掘进；采空区；地质构造；围岩支护；锚索支护
中图分类号： TD353      文献标志码： A      文章编号： 2095-0802-(2023)07-0109-03
Surrounding Rock Support Technology for Roadways near Goaf
DU Qiang
(Duerping Coal Mine, Xishan Coal Electricity Group, Shanxi Coking Coal Group, Taiyuan 030022, Shanxi, China)
Abstract: When driving in the near goaf section of 6307 transportation roadway in a coal mine of Shanxi, multiple factors such
as the increase of false roof thickness, geological structure and stress in the goaf are superimposed, resulting in large deformation
of roadway surrounding rock, failure of bolts (cables) in the original support system, roof caving and other problems. On the basis
of analyzing the deformation characteristics of the surrounding rock of the transportation roadway and the scope of the loosening
zone, it was proposed to leave the top coal to provide a certain support force for the false roof during excavation, adopt short
excavation and short support methods to reduce the suspended area, and improve the control effect of the surrounding rock by
strengthening the anchor cable support of the roof and increasing the strength of the support surface. After on-site application, the
surrounding rock and support system of 6307 transportation roadway remained stable during excavation near the goaf section,
achieving effective control of roadway deformation.

Key words: roadway excavation; goaf; geological structure; surrounding rock support; anchor cable support