锚杆支护参数对巷道变形的影响分析  

Analysis of the Influence of Anchor Support Parameters on Roadway Deformation

作　　者：黄成龙 Huang Chenglong(Quality Inspection Group,Majialiang Mine,Jinneng Holding Coal Group,Datong Shanxi 037000)

机构地区：[1]晋能控股煤业集团马脊梁矿质检组,山西大同037000

出　　处：《机械管理开发》2022年第2期106-108,共3页Mechanical Management and Development

摘　　要：为确定最佳的支护参数,进而提高锚杆支护的效果,分析了不同锚杆长度、锚杆直径对巷道变形的影响规律。结果表明,当锚杆长度较短时,随着锚杆长度的增大,巷道围岩变形增大,当锚杆长度增加至2000mm时,锚杆的锚固作用开始发挥作用,因此,锚杆长度宜选取2500m;而随着锚杆直径的增大,巷道顶底板围岩变形逐渐减小,且在局部区间出现底板位移增大的现象,但整体变化趋势是减小的,因此,锚杆直径宜选取22 mm。In order to determine the best support parameters and thus improve the effect of anchor rod support,the influence law of different anchor rod lengths and anchor rod diameters on the roadway deformation was analyzed.The results show that when the anchor rod length is short,the deformation of the surrounding rock of the roadway increases with the increase of the anchor rod length,and when the anchor rod length increases to 2,000 mm,the anchoring effect of the anchor rod starts to play a role,therefore,the size of the anchor rod length should be selected as 2,500 m;and with the increase of the anchor rod diameter,the deformation of the surrounding rock of the top and bottom slab of the roadway gradually decreases,and the bottom slab displacement increases in the local area,but the overall Therefore,the size of anchor diameter should be 22 mm.

关 键 词：锚杆支护 锚杆长度 锚杆直径 锚固作用 

分 类 号：TD353.6[矿业工程—矿井建设]