摘要
针对西河煤矿大断面巷道底鼓问题,提出了切槽卸压防治技术,通过理论计算和数值模拟,确定了合理的切槽尺寸,并在现场进行了工业试验和效果监测,结果表明,采用深度2.2 m,宽度0.4 m的卸压切槽可以使得巷道底鼓变形降低76.8%,底鼓防治效果显著。
In view of the problem of floor heave of large cross-section roadway in Xihe Coal Mine,this paper puts forward the prevention and control technology of pressure relief by cutting groove,through theoretical calculation and numerical simulation,the reasonable size of cutting groove is determined,and the industrial test and effect monitoring are carried out in the field,the relief groove with depth of 2.2 m and width of 0.4 m can reduce the deformation of floor heave by 76.8%,and the control effect of floor heave is remarkable.
作者
郭晋鹏
GUO Jin-peng(Yangcheng Xihe Coal Industry Co.,Ltd.,of Shanxi Coal Marketing Group,Yangcheng 048105,China)
出处
《煤》
2020年第4期18-20,70,共4页
Coal
基金
山西省自然基金面上项目(201601D102038)。
关键词
底鼓
切槽卸压
大断面
数值模拟
floor heave
notch relief
large cross-section
numerical simulation
