鲤井近距离煤层实行上行式垮落法开采的实践研究

Practical Research on the Application of UP-caving Mining of the close Seams of Liyutang Mine

本文通过近距离煤层群上行式垮落法开采的现场实践及分析研究提出了上行式开采的适用条件、技术措施及应遵守的原则。图2,参4。

After some worksite practice and analytical of up -caving of the closs seams,the author puts forward the applicable conditions,technical measures and the principles which should be adserved of up ?aving extration. Fig. 5 ,Ref. 4.