大同矿区复杂条件下综合灌浆防灭火技术探讨

Probe into the Comprehensive Grouting Fire-fighting Technology under Complicated Conditions of Datong Coal Mining Area

针对大同矿区存在着煤层层数多、间距小、顶板坚硬、多层采空的实际特点,进行了采空区地面灌浆材料分析、浆液配比分析、各种因素对灌浆效果的影响分析,探讨了灌浆系统的布置,获得了大同地区近距离、多煤层采空区地面灌浆技术参数。

In the light of the actual features of Datong Coal Mining Area such as more coal seams with spacing distance, hard roof and multi-layer goaf, this paper makes the analysis on goal＇ s ground grouting materials, the analysis on grout mixture ratio,and the analysis on influence of various factors on grouting effect. Probes into the layout of grouting system, and obtains some technical parameters for close-range and multi-layer goaf＇s ground grouting adopted in Datong Coal Mining Area.