寸草塔矿护巷煤柱宽度的研究与应用

针对寸草塔矿43115工作面的实际情况,运用FLAC3D数值计算软件对不同煤柱宽度下巷道围岩变形、受力情况进行了模拟研究,对寸草塔矿43115工作面护巷煤柱宽度留设提出了建议。根据现场实测不同煤柱宽度下支承压力分布规律,应用弹性核理论得出实际护巷煤柱宽度,最终得出护巷煤柱的合理宽度。

According to the actual situation of 43115 iace cuncaota mitre,we use the numerical calculation software to conduct a simulationg study with surrounding rock deforation and stcss condition of roadway on the different coal pillar width, using numerical calculation software in order to make a Rea- sonable suggestion of Coal pillar＇s width for 43115 face cuncaota mine. Based on field observation of support pressure distribution law in different coal pil- lar width, with the application of elastic nuclear theory, we get the conclusion of practical coal pillar width. Finally, we obtain the reasonable width of coal pillar.