水力压裂卸压在动压影响巷道围岩控制中的应用分析  

Application of Hydraulic Fracturing Pressure Relief in Surrounding Rock Control of Roadways Affected by Mining Pressure

作　　者：廉文胜 LIAN Wensheng(Shuiyu Coal Industry Co.,Ltd.,Shanxi Fenxi Mining Industry Group,Lvliang 032302,Shanxi,China)

机构地区：[1]山西汾西矿业集团水峪煤业有限责任公司,山西吕梁032302

出　　处：《能源与节能》2025年第3期270-272,278,共4页Energy and Energy Conservation

摘　　要：为降低采动压力影响,提出将水力压裂卸压护巷技术应用到动压巷道围岩控制中,并以南翼回风大巷围岩控制为工程背景,对水力压裂布置方案、工程应用效果进行分析。南翼回风大巷主要受3511综放工作面采动影响,在3511进风巷内布置水力压裂钻孔,对煤层上覆主关键层进行压裂,达到缩小采动压力影响范围及降低影响程度的目的。工程应用后,在3511综放工作面回采期间南翼回风大巷顶板下沉量控制在31.5~42.1 mm之间,南翼回风围岩始终保持稳定,可满足巷道后续使用需要。To reduce the impact of mining pressure,it was proposed to apply hydraulic fracturing pressure relief and roadway protection technology to the control of surrounding rock in mining pressure roadway.Taking the control of surrounding rock in the south wing return airway as the engineering background,the layout scheme and engineering application effect of hydraulic fracturing were analyzed.The south wing return airway was mainly affected by the mining of the 3511 fully mechanized top coal caving face.Hydraulic fracturing boreholes were arranged in the 3511 intake airway to fracture the main key layer overlying the coal seam,in order to reduce the range and degree of mining pressure impact.After engineering application,during the mining period of the 3511 fully mechanized top coal caving face,the subsidence of the roof of the south wing return airway was controlled between 31.5 mm and 42.1 mm,and the surrounding rock of the south wing return airway remained stable,which can meet the subsequent use needs of the roadway.

关 键 词：采动压力 卸压 水力压裂 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]