摘要
针对我国煤矿岩巷掘锚失衡、成巷效率低问题,采用理论分析、仿真模拟及现场试验的方法,开展了煤矿巷道全断面硬岩掘进机盾构法施工适应性及系统匹配性分析,提出了影响立井煤矿巷道盾构法施工效率的四个关键因素,包括设备出入立井、快速组装与运输、轨迹控制及快速支护。结合矿井现有条件,设计了井下大型硐室设备组装与拆卸平台,优化了施工工艺,形成了集掘、支、装、转、运、喷多工序协调统一的盾构施工技术体系。研究成果在阳泉新景煤矿岩巷掘进中首次成功应用,实现了最高月进尺608m,最高日进尺31.5m,创造了煤矿单次掘进、一次成巷3490m的水平,大幅提高了岩巷成巷效率,缩短了矿井准备周期,取得了显著技术经济效益。
In view of the unbalanced excavation and bolting,and low efficiency of roadway formation in coal mine,by means of theoretical analysis,simulation and field test,the adaptability of shield tunneling and matching of construction system of fullsection hard rock roadheader in coal mine are analyzed.Four aspects of problems affecting the construction efficiency of shield tunneling in vertical coal mine are proposed,including equipment access to vertical shaft,equipment rapid assembly and transportation technology,trajectory control and rapid support.The equipment assembly and disassembly platform of the underground large chamber is designed,the construction technology is optimized,and the shield construction technology system with multi-process coordination and unity of digging,supporting,assembling,transferring,transporting and spraying is established.The research results were applied for the first time in rock roadway of Yangquan Xinjing Coal Mine,the highest monthly and daily footage of rock roadway were 608m and 31.5m,respectively,achieving the record of 3490m simultaneous drifting in rock roadway in a single tunneling.The efficiency of rock roadway forming is improved,the mine preparation period is shortened,and significant technical and economic benefits are achieved.
作者
何杰
崔千里
付书俊
范军平
李育朋
HE Jie;CUI Qian-li;FU Shu-jun;FAN Jun-ping;LI Yu-peng(Coal Mining and Designing Branch,China Coal Research Institute,Beijing 100013,China;Coal Mining and Design Department,Tiandi Science and Technology Co.,Ltd.,Beijing 100013,China;Huayang New Material Technology Group Co.,Ltd.,Yangquan 045000,China;Shanxi Xinjing Coal Mine Co.,Ltd.,Yangquan 045000,China)
出处
《煤炭工程》
北大核心
2022年第7期38-43,共6页
Coal Engineering
关键词
深埋长距离巷道
岩巷掘进
盾构法施工
一次成巷
deep buried long distance roadway
rock roadway driving
shield method
simultaneous drifting