摘要
以陕北某矿工业广场为背景,对煤矿采空区顶板岩层相对完整、坚硬,采空区空间比较大,顶板未塌落或未完全塌落的采空区,提出了注浆投砂技术,实践证明:采用该技术治理采空区不仅能够达到良好的治理效果,而且能够大大降低治理成本。
Taking a industrial square of mine coal in north Shaanxi as background. Based on the characteristics of old coal mining area, inclu- ding integral hard rock and large space of goaf, the grouting and sand feeding technology was put out when the room-pillar mining is treated with un-collapse roof plate, practice proved： the technology that managed mined-out area could not only achieve good governance effect, but also could greatly reduce the management cost.
出处
《山西建筑》
2014年第12期76-78,共3页
Shanxi Architecture
关键词
注浆投砂
采空区
治理
grouting and sand feeding, goal, treatment
