TY - JOUR A2 - Zhang, Guangchao AU - Wu, Zhaopeng AU - Wang, Junhui AU - Wan, Zhijun AU - Cheng, Jingyi AU - Xiong, Luchang AU - Zhao, Lizhu AU - Liu, Xiaogang PY - 2021 DA - 2021/01/04 TI - A Case Study of Cyclic Top Coal Weakening Process Based on Highly Tough Coal Seam with Partings SP - 8862044 VL - 2021 AB - The top coal weakening process is an effective mean to increase the coal output, reduce the coal resource waste, and promote the sustainable development in a mine.常规爆破变弱过程和水注入变弱过程被更广泛地应用到完全机械化粗煤矿开采中,但在一些特殊复杂地质条件下,单靠对资本和设备的大量投资后,单靠一个变弱过程无法实现顶层煤减值。高度硬顶煤化工面110501完全机械化顶层煤矿中,从机制范围研究离合带和顶层煤破解高强度效果,多功能复合钻场整合爆弱、水注入减弱和天然气抽取自特意设计,并提议极硬煤离合法循环顶层弱化进程工程实践和性能测试显示顶层煤分解和移动度提高,工作面平均顶层煤回收率增加约35%,煤资源废物减少,燃气爆炸和矿火潜在风险消除,为顶层煤弱化进程提供参考类似复杂工程条件SN-1070-9622UR-https://doi.org/101155/2021/8862044DO-10.1155/2021/8862044JF-震荡和振荡PB-HindawiKW-ER-