摘要
通过地应力测定、围岩松动圈测试、巷道岩性分析等方面,分析了运输大巷变形破坏特征,研究了影响运输大巷稳定的相关因素,在充分考虑深部巷道围岩支护条件下,基于"先抗后让再抗"的支护理念,设计采用锚网索喷注联合支护方案,从现场应用情况来看,实现了对巷道围岩稳定性的较好控制。
This paper analysis the deformation and failure characteristics of transport roadway, studies the related factors that affect the stability of transportation lane through the measurement of geostress, testing of surrounding rock loosening circle, analysis of roadway lithology, etc. Based on the support concept of "first resist, then yield and then resist", the joint support scheme of anchor net nozzles and injection is designed, and the stability of roadway is well controlled from the point of view of field application.
作者
王虎芳
Wang Hu-fang(Shanxi Changzhi Jingfang Coal Industry Co., Ltd., Shanxi Changzhi 047100)
出处
《山东煤炭科技》
2019年第3期28-30,33,共4页
Shandong Coal Science and Technology
关键词
多因素
巷道
稳定
研究
multiple factors
roadway
stability
study
