摘要
针对寺河煤矿二号井15#煤层石灰岩顶板坚硬不易垮落,易造成回采巷道变形剧烈,支护困难等问题,本文以XV1305工作面为研究对象,采用定向水力压裂技术对石灰岩顶板进行弱化处理,现场试验表明:定向水力压裂技术优势明显,顶板垮落充分,巷道围岩变形得到有效地控制。
The 15# coal seam limestone roof in Sihe Coal Mine No.2 well is hard and not easy to collapse, which could easily lead to severe deformation of the roadway, difficult to support, in this paper, taking XV1305 working face as the research object, the limestone roof was weakened by directional hydraulic fracturing technology. Field test showed that directional hydraulic fracturing technology have obvious advantages, the roof caving fully, roadway surrounding rock deformation has been effectively controlled.
出处
《山东煤炭科技》
2016年第9期23-25,共3页
Shandong Coal Science and Technology
关键词
石灰岩顶板
定向水力压裂
强制放顶
围岩控制
limestone roof directional hydraulic fracturing forced caving surrounding rock control
