摘要
本文运用多理论计算,对三元煤业15号煤大断面开拓巷道、回采巷道合理的支护参数进行设计,确定巷道顶板铺设锚网,采用直径16～18mm、长度1.8m的锚杆对锚网进行固定,间排距1.6m×0.8m;巷帮采用长度2.0～2.4m、直径16～20mm的锚杆,间排距选取0.8×0.8m和1.0×1.0m两种规格。实际施工中,采用本次支护设计参数,围岩控制效果良好。
In this paper,the rational supporting parameters of No.15coal roadway in Sanyuan Coal Industry are designed by using multi-theoretical calculation.The roof of roadway is laid with anchor net.The anchor net is fixed with bolts of16~18mm in diameter and1.8m in length,and the distance between rows is1.6m×0.8m.The roadway side is anchored with bolts of2.0~2.4m in length and16~20mm in diameter.The row spacing is selected by0.8×0.8m and1×1.0m two specifications.In actual construction,the design parameters of the support are adopted,and the surrounding rock control effect is good.
作者
张杰
Zhang Jie(Jinneng Group Taiyuan Co.,Ltd.,Shanxi Taiyuan 030000)
出处
《山东煤炭科技》
2018年第12期59-61,67,共4页
Shandong Coal Science and Technology
关键词
大断面
支护
设计
large section
support
design
