摘要
为保障沿空留巷充填体强度,提高沿空留巷施工质量,本文以屯兰矿18403工作面为例,首先通过沿空留巷围岩结构变化理论,对断裂围岩中关键块B的长度参数进行了计算;然后综合利用工程算法和数值模拟算法确定了充填体的最佳宽度取值,当充填体宽度为2.5 m时可同时满足施工经济性和安全性要求;最后,本文介绍了基于上述计算的18403工作面的沿空留巷工艺流程及工序等,并对实际应用效果进行了分析.
In order to guarantee the strength of backfill and improve the construction quality of empty roadway along,this paper takes the 18403 working face of Tunlan Mine as an example to study.Firstly,the length parameters of the key block B in the faulted surrounding rock is calculated based on the structure change theory of surrounding rock along goaf,Then,the optimal width of the backfill is determined by using engineering algorithm and numerical simulation algorithm comprehensively.When the width of the backfill is 2.5 m,it can meet the requirements of construction economy and safety simultaneously,Finally,this paper introduces the technological process and working procedure of 18403 working face along goaf based on the above calculation,and analyzes the practical application effect.
作者
杜鹏荣
Du Pengrong(Shanxi Dayangquan Coal Co.,Ltd.,Yangquan 045000,China)
出处
《矿业工程研究》
2020年第3期73-78,共6页
Mineral Engineering Research
关键词
沿空留巷
充填体
关键块
工艺流程
remaining along the empty lane
filling body
key block
process flow
