摘要
针对大采高工作面具有较强矿压显现特征的问题,通过与普通采高(≤3.5 m)对比,分析了大采高工作面支承压力分布的特点;采用新型的非金属超声波裂隙探测系统,对试验工作面的支承压力分布情况进行了观测研究,并取得了良好的应用效果。
Based on the problems of stronger strata behaviors in large mining height working face, the distribution characteristics of abutment pressure were analyzed through comparing with the normal mining height（≤3.5m）. The distribution of abutment pressure in experimental face was observed by new type of ultrasonic detection system on nonmetal fracture, and good application effects were obtained.
出处
《山西焦煤科技》
2009年第5期4-6,14,共4页
Shanxi Coking Coal Science & Technology
关键词
大采高
支承压力
超声波
松动圈
Large mining height
Abutment pressure
Ultrasonic
Loose circle
