摘要
通过实际测量研究不同锚固间距结构应力变化、破坏特征,分析锚杆间距对围岩锚固结构位移场、局部变形及其整体分布的影响。得到了不同锚杆间距下围岩锚固结构的破坏特征。利用FLAC3D数值模拟软件,分析了锚杆间距对围岩锚固结构支护强度的影响,并通过巷道位移测量进一步验证了支护方案的有效性。
Based on the actual measurement,the stress change and failure characteristics of the structure with different anchor spacing are studied,and the influence of the anchor spacing on the displacement field,local deformation and overall distribution of the surrounding rock anchorage structure is analyzed.The failure characteristics of surrounding rock anchorage structure with different bolt spacing are obtained.Using FLAC3D numerical simulation software,this paper analyzes the influence of bolt spacing on the support strength of surrounding rock anchorage structure,and further verifies the effectiveness of the support scheme through roadway displacement measurement.
作者
王志国
Wang Zhiguo(Shanxi Ningwu Dayun Huasheng Laoyaogou Coal Industry Co.,Ltd.,Ningwu Shanxi 036700)
出处
《山西冶金》
CAS
2021年第4期154-157,共4页
Shanxi Metallurgy
关键词
锚固结构
破坏特征
应力变化
数值模拟
anchorage structure
failure characteristics
stress change
numerical simulation
