摘要
为解决深部厚煤层沿空掘巷留设煤柱大变形的问题,在阐述沿空掘巷留设煤柱双向加固机理后,以济宁三号煤矿为工程背景,采用胀锁式对穿锚索加固沿空掘巷留设煤柱。实践表明,煤帮的变形量得到了有效控制,保持了巷道在回采期间的稳定性,减少了施工期间巷道维护费用。
In order to solve the problem of large deformation of coal pillars leaving the deep roadway in deep thick coal seams, expounds the two-way reinforcement mechanism of coal pillars along the roadway driving along the roadway, taking Jining No.3 coal mine as the engineering background,reinforcement of coal pillars along roadway driving with anchor. Practice shows that the deformation of coal to be effective control, to maintain the stability of the road during the mining period, reducing the construction period of roadway maintenance costs.
作者
邢天海
王波
王军
魏文辉
郭现伟
XING Tian-hai;WANG Bo;WANG Jun;WEI Wen-hui;GUO Xian-wei(Jining No.3 Mine,Yanzhou Coal.Mining Corporation Ltd.,Jining 272169,China;College of Safety Engineering,North China Institute of Science and Technology,Beijing 101601,China;School of Civil Engineering,Shangdong Jianzhu University,Jinan 250100,China)
出处
《煤炭技术》
CAS
2019年第1期33-36,共4页
Coal Technology
基金
国家自然科学基金(51404105)
河北省自然科学基金(E2015508047)
关键词
深部厚煤层
沿空掘巷
胀锁式对穿锚索
加固试验
deep thick coal seam
roadway driving along goaf
inflatable type locking bolt
reinforcement test
