黏液对提高浅孔抽放效果的实验研究

Experiment Research of Mucus's Stimulative Effect to Shallow Hole Drainage

通过对煤巷掘进工作面的考察研究,建立了实验室浅孔抽放模拟抽放系统。分析了影响浅孔抽放效果的各个因素,提出黏液封孔的新思路。通过对实验数据的整理分析,得到了孔底抽放负压与不同黏液体积关系曲线,给现场施工提供了理论依据。

Through investigation and study on the heading face of coal roadway,a simulated gas drainage system by shallow holes was established in the laboratory.This paper gives a serious analysis on the factors affecting the drainage effectiveness by shallow holes and put forward a new thinking of hole packing by mucus.By the sorting-out and analysis of the experimental data,relationship curve of mucus volume and ultimate negative pressure is gained,which provides theoretical basis for site job.