综采放顶煤工作面高冒空巷充填技术

基于对综采放顶煤工作面高冒空巷围岩活动规律的分析，采用高水速凝材料充填高冒空巷。通过理论分析和数值模拟计算，确定了高水速凝材料充填体的力学参数。研究表明，充填体具有较大的支护阻力和良好的逆性变形特点，可有效支护高冒空巷顶板和两帮，同时适当变形而降低载荷，保持充填体完整，该技术成功应用于工程实践，取得了较好的技术，经济效果。

Technique of Filling Roof-Collapsed Roadway with Material with High Water Content in Fully-Mechanized Top-Coal Caving Faces

Based on the analysis of surrounding rock movement of an old roof collapsed roadway parallel to a fully mechanized top coal caving face, the new technique of filling this kind of roadway with the material with high water content was put forward. Through the theoretical analysis and the numerical stimulation calculation, the mechanical parameters of filling body were determined. It has great supporting pressure and good plastic deformation, so it can efficiently support an old roadway, descend the load and ensure the integrity of a filling body. The technique has been applied in field successfully, and resolves the problem how a coal face crosses an old roadway.