摘要
为有效避免因采空区大面积的坚硬顶板悬顶造成工作面初次来压过大的现象,以同煤集团煤峪口煤矿8703工作面为研究对象,提出通过水力压裂技术弱化顶板的技术方案。实践表明,水力压裂技术能够有效降低坚硬顶板的强度,提高顶板的冒放效果,实现工作面的安全初采。
In order to effectively avoid the phenomenon that the working face is overloaded for the first time due to the large area of hard roof hanging in the goaf,taking the 8703 working face of Meiyukou Coal Mine of Tongmei Group as the research object,the technical scheme of weakening the roof by hydraulic fracturing technology is proposed.The practice shows that the hydraulic fracturing technology can effectively reduce the strength of the hard roof,improve the caving effect of the roof,and realize the safe initial mining of the working face.
作者
张功
Zhang Gong(Safety Management Supervision Bureau of Datong Coal Mine Group Co.,Ltd.,Shanxi Datong 037003)
出处
《山东煤炭科技》
2020年第6期21-23,共3页
Shandong Coal Science and Technology
关键词
坚硬
顶板
水力
弱化
hard
roof
hydraulic
weakening
