煤炭与化工2023，Vol.46Issue(12)：27-29,46,4.DOI:10.19286/j.cnki.cci.2023.12.007
综采工作面破碎带注浆加固应用研究
Study on application of grouting reinforcement in broken zone of fully mechanized mining face
薛永升1
作者信息
- 1. 煤炭科学技术研究院有限公司矿用材料分院,北京 100013||煤炭资源高效开采与洁净利用国家重点实验室,北京 100013
- 折叠
摘要
Abstract
Aiming at the problems of rib spalling and roof leakage between No.158 support and No.215 support in No.14112 fully mechanized mining face of Pingshuo No.1 Coal Mine in Shanxi Province,combined with the geological characteristics of the site,the suitable grouting material was selected,the reasonable grouting reinforcement scheme was formulated,and the grouting reinforcement effect was evaluated.The project adopted the combination of silicate modified polyurethane material and polyurethane material,and adopts the three-cycle grouting scheme to solve the problem of rib spalling and roof leakage in the working face,so as to provide safety guarantee for the equipment withdrawal channel.The application results showed that through the two-way control of materials and processes,a total of 63 t grouting materials were consumed in the first cycle.After 4 cuts of coal,the second and third cycles of grouting were carried out,and no spalling and roof leakage occured.关键词
片帮/漏顶/注浆/加固煤岩体Key words
rib spalling/leaked roof/grouting/reinforce coal rock mass分类
矿业与冶金引用本文复制引用
薛永升..综采工作面破碎带注浆加固应用研究[J].煤炭与化工,2023,46(12):27-29,46,4.
