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首页> 外文会议>The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)论文集 >Testing Study on Gas Distributing in Goaf of Easy Spontaneous Combustion Coal Mine by Utilizing Gas Drainage Hole
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Testing Study on Gas Distributing in Goaf of Easy Spontaneous Combustion Coal Mine by Utilizing Gas Drainage Hole

机译：瓦斯抽放孔在易自燃煤矿采空区瓦斯分布的试验研究。

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摘要

According to the mining plan in the 416 mining face in Chen Jiashan coal mine, an industrial experiment on the distribution of gas gushes in goal has been made in the paper. There are 5 sets of testing equipment which have been used in 5 drilling sites joint to gas drainage pipeline. By analyzing the gases collected in the pipeline, the CH4 consistence has been gained. The relationship of CH4 consistence in drilling site along with the distance away from work face is studied. By drawing the curve between CH4 consistence and the distance, the law of gas changing and other characteristics such as a height peak and a low peak appeared in the curve have been discovered. It has been found through farther analysis that the gas gushes is related to gob leakage, which conduced the CH4 consistance changing to big to height peak, the gas gushes is related to drainage-.hole leakage, which conduced the CI-~ consistence changing to small, and the gas gushes is related to goaf spontaneous combustion, which conduced the CH4 consistence changing to big from the low peak firstly. Finally, the important result about the boundary leakage in goal and the position for three zones of ceal spontaneous combustion have been brought out. And which is worthy utilizing on mine disaster prevention.
机译：根据陈家山煤矿416采煤工作面的开采计划，对瓦斯涌出物的分布进行了工业实验。有5套测试设备已用于5个与瓦斯抽放管道连接的钻井现场。通过分析管道中收集的气体，获得了CH4浓度。研究了钻井现场CH4浓度与离工作面距离的关系。通过绘制CH4浓度和距离之间的曲线，发现了气体变化规律和曲线中出现的其他特征，例如峰高和峰低。通过进一步的分析发现，瓦斯涌出与采空区泄漏有关，导致CH4浓度从大到高变化，而瓦斯涌出与排水孔渗漏有关，导致CI-〜浓度变化为高。气体的涌出与采空区的自燃有关，首先导致CH4浓度从低峰向大变化。最后，得出了目标边界泄漏和三个区域自发燃烧位置的重要结果。值得在矿山防灾方面加以利用。

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