煤矿安全2017，Vol.48Issue(12)：74-77,4.DOI:10.13347/j.cnki.mkaq.2017.12.019
特厚煤层动压巷道动态注浆加固技术
Technology of Dynamic Grouting Reinforcement in Dynamic Pressure Roadway of Extremely Thick Coal Seam
田江华1
作者信息
- 1. 同煤浙能麻家梁煤业有限责任公司,山西朔州036000
- 折叠
摘要
Abstract
For the problem that the roof appears the phenomenon of periodic steps descent and the deformation of mining roadway is serious in the first working face of Majialing Mine affected by the working face mining.We use the method of numerical simulation and field measurement,and propose the dynamic grouting reinforcement technique.As the result,the grouting effect is obvious.Study results show that the distribution of advance abutment stress has the periodic dynamic law,and roadway surrounding rock presents periodic damage;the polymer concrete has characteristics of curing speed and high early strength;we determine the reasonable grouting parameters and timely track and reinforce coal and rock with sign of roof caving to ensure the stability of surrounding rock of roadway.关键词
特厚煤层/动压巷道/超前支承应力/动态注浆加固Key words
extremely thick coal seam/dynamic pressure roadway/advance abutment stress/dynamic grouting reinforcement分类
矿业与冶金引用本文复制引用
田江华..特厚煤层动压巷道动态注浆加固技术[J].煤矿安全,2017,48(12):74-77,4.
