水射流割缝在低透气性强突煤层瓦斯抽采中的应用  

Application of High-Pressure Water Jet Slotting Technology on Gas Drainage of Low Permeable High Outburst Seam

作　　者：陈睿 CHEN Rui(Safety Technology Center of Sichuan Coal Mine Safety Supervision Bureau,Chengdu Sichuan,610041;Sichuan Zhuchuang Safety Technology Co.,Ltd,Chengdu Sichuan,610041)

机构地区：[1]四川煤矿安全监察局安全技术中心,四川成都610041 [2]四川铸创安全科技有限公司,四川成都610041

出　　处：《山西大同大学学报（自然科学版）》2020年第4期81-84,共4页Journal of Shanxi Datong University(Natural Science Edition)

基　　金：四川省安全生产科技项目[ZY20150432SC]。

摘　　要：结合川南地区煤质松软、煤层透气性差、瓦斯含量高等特点,开展了基于水射流割缝强化瓦斯抽采、促进煤巷消突的研究,并在兴文县建设煤矿进行了工业试验,通过对煤体扰动效果、抽采量衰减情况以及瓦斯预抽率等一系列指标的考察,表明:采用该技术后大幅度缩短了工作面瓦斯抽采达标时间,显著提高了瓦斯治理效果,为进一步推广该技术提供了依据。This paper investigates on strengthening gas drainage by adopting technology of high-pressure water jet slotting based on the soft coal property, poor coal seam permeability and high methane content in southern sichuan. Through the industrial test on Jianshe coal mine in Xingwen County, the investigation on a series of factors involving disturbance effect on coal, gas pre-drainage rate shows that after utilizing this technology, reaching-standards time of extraction has been reduced dramatically and the effect of gas control is significantly improved which provides a basis for the further promotion of this technology.

关 键 词：水射流割缝 单一突出煤层 煤巷快速消突 瓦斯抽采达标 煤层透气性 

分 类 号：TD713[矿业工程—矿井通风与安全]