煤巷支护数值模拟及优化  

Numerical Simulation and Optimization of Coal Tunnel Support Technology

作　　者：白超 Bai Chao(Guoneng Ningxia Coal Energy Engineering Company Limited,Helan Ningxia 603122)

机构地区：[1]国能宁夏煤业能源工程有限公司,宁夏贺兰603122

出　　处：《现代工业经济和信息化》2023年第5期310-312,共3页Modern Industrial Economy and Informationization

摘　　要：采用数值计算方法分别模拟了当锚杆间排变化和锚杆长度变化时的支护情况,随着间排距的增加,应力峰值逐渐向围岩深部转移,在锚杆长度为2 m时,围岩应力峰值明显降低且明显向深部转移,最终确定支护方式为:顶帮锚杆间排距900 mm,锚杆长度2.2 m,锚索长度为7 m,间排距2000 mm×2700 mm。Numerical calculation methods were used to simulate the support when the inter-row of anchor rods changed and the length of anchor rods changed respectively,with the increase of the inter-row distance,the stress peak gradually shifted to the deep part of the surrounding rock.The final support method was determined as follows:inter-row spacing of 900 mm,anchor rod length of 2.2 m,anchor cable length of 7 m,inter-row spacing of 2000 mm×2700 mm.

关 键 词：锚杆锚索联合支护 数值模拟 支护优化 

分 类 号：TD353[矿业工程—矿井建设]