运输巷道锚杆长度对锚固工程的影响研究  

Study on Influence of Bolt Length on Anchorage Engineering in Transport Roadway

作　　者：张志忠 ZHANG Zhizhong(Energy Investment and Development Co.,Ltd.,Shanxi Coal Transportation and Sales Group,Gujiao 030200,Shanxi,China)

机构地区：[1]山西煤炭运销集团能源投资开发有限公司,山西古交030200

出　　处：《能源与节能》2021年第3期14-15,188,共3页Energy and Energy Conservation

摘　　要：针对矿井20115运输巷道全锚索支护下大面积冒顶事故现象,对不同锚杆长度下围岩应力进行了数值模拟,从锚杆与围岩的协同作用和经济效益出发,确定了220 mm的锚杆长度。在加强支护方案下,围岩变形得到有效控制,保证了工作面的顺利回采。In view of the large area roof caving accident phenomenon in 20115 transport roadway with fully anchorage support,this paper carried out numerical simulation on the surrounding rock stress under different anchor length,and determined the anchor length was 220 mm based on the synergy and economic benefits of the bolt and surrounding rock.The deformation of surrounding rock was effectively controlled by the reinforcement scheme,which ensured the successful mining in the working face.

关 键 词：数值模拟 协同作用 加强支护 

分 类 号：TD353[矿业工程—矿井建设]