山东煤炭科技2025，Vol.43Issue(3)：27-30,36,41,6.DOI:10.3969/j.issn.1005-2801.2025.03.006
破碎顶板巷道冒顶机理及注浆预控技术
Mechanism of Roof Caving in Broken Roof Roadway and Grouting Pre-control Technology
雷磊 1郇恒恒1
作者信息
- 1. 焦作煤业(集团)新乡能源有限公司,河南 新乡 453000
- 折叠
摘要
Abstract
In response to the problems of broken roof,difficult anchoring,easy roof caving and others in the lower layered roadway of Zhaogu No.2 Mine of Henan Energy Coking Coal Company,FLAC2D-PFC coupled numerical simulation method is adopted to analyze the stress distribution and deformation characteristics of the roadway surrounding rock under the layered mining condition.The roadway surrounding rock has significant asymmetric deformation,affected by the accumulation of gangue and upper layered residual coal pillars,the roof is severely broken.A grouting reinforcement and pre-control technology is proposed,by grouting anchor cables,filling surrounding rock cracks,enhancing the integrity and bearing capacity of rock mass to ensure the stability and adaptability of support structures.The application results show that grouting reinforcement pre-control technology can effectively control the deformation of roadway surrounding rock,significantly reduce the risk of roof caving,extend the service life of support structures,improve the working environment,and provide solid guarantees for the safe and efficient production of mines.关键词
煤巷/破碎/注浆/支护Key words
coal roadway/broken/grouting/support分类
矿山工程引用本文复制引用
雷磊,郇恒恒..破碎顶板巷道冒顶机理及注浆预控技术[J].山东煤炭科技,2025,43(3):27-30,36,41,6.
