长治15号煤层坚硬顶板软化处理技术

Softening Process Technology for Hard Roofs of No.15 Coal Seam in Changzh

针对长治地区15号煤层K2石灰岩顶板厚度大、致密坚硬、开采中不易垮落的特性,提出了对15号煤层坚硬顶板进行软化处理的技术方案,有效解决了长壁回采工作面坚硬顶板的放顶问题。

In No.15 coal seam,K2 limestone roofs are thick,hard,and not easy to fall down.On the features,the paper proposes the softening process technical scheme which has effectively solved the roof falling problem in the long-wall mining face.