摘要
为得到综采工作面回采过程中瓦斯涌出的变化规律,在斜沟煤矿18205综采工作面现场实测研究煤岩破坏的微震监测、工作面矿压显现监测和瓦斯涌出,获得综采面煤岩破坏、矿压显现和瓦斯涌出三者之间的关系。现场实测结果证明:在工作面前方微震事件随工作面的推进而不断增大,微震事件出现峰值的时间一般比工作面周期来压略早,而瓦斯涌出量出现峰值的时间比工作面周期来压略晚,通过微震事件变化情况间接得到工作面矿压显现和瓦斯涌出规律。
In order to get the change law of gas emission in the process of fully-mechanized mining face,the micro-seismic monitoring,strata behavior monitoring and gas emission of 18205 fully mechanized mining face in Xiegou Coal Mine were measured and studied,the relationship among coal and rock failure,strata behavior and gas emission in fully-mechanized mining face is obtained.The field measurement results show that the micro-earthquake events in front of the working face increase with the advancing of the working face,and the peak time of the micro-earthquake events is usually earlier than the period of the working face,the peak time of gas emission is a little later than the period of working face.The law of strata behaviors and gas emission is obtained indirectly by the change of micro-seismic events.
作者
王英波
WANG Ying-bo(Xiegou Coal Mine of Shanxi Xishan Jinxing Energy Co.,Ltd.,Lüliang 033602,China)
出处
《煤》
2022年第11期14-18,共5页
Coal
基金
国家自然科学基金面上项目:瓦斯抽采钻孔漏气通道三维识别及动态密封方法研究(51974241)
国家自然科学基金科学仪器基础研究专款资助项目:煤与瓦斯安全共采三维物理模拟方法及综合实验系统研究(51327007)。
关键词
周期来压
煤岩破坏
微震监测
矿压显现
瓦斯涌出
periodic weighting
coal destroy
microseismic monitoring
strata behaviors
gas emission
