锚杆锚固强度与顶板离层关系探究  

Study on the Relationship Between Anchor Strength and Roof Separation

作　　者：亓志峰 孙涛 张余龙 Qi Zhifeng;Sun Tao;Zhang Yulong(School of Energy and Mining Engineering,Shandong University of Science and Technology,Shandong,266590;Inner Mongolia Erdos Yingpanhao Coal Mine,Inner Mongolia,017399)

机构地区：[1]山东科技大学能源与矿业工程学院,山东266590 [2]内蒙古鄂尔多斯营盘壕煤矿,内蒙古017399

出　　处：《当代化工研究》2025年第4期62-64,共3页Modern Chemical Research

摘　　要：随着煤矿开采深度的增加,顶板离层现象日益严重。以营盘壕煤矿2202胶运顺槽为工程背景,通过理论分析、数值模拟等方法对锚杆锚固强度与顶板离层关系进行探讨,采用曲线拟合的方式得出顶板离层量与锚固长度之间的关系;利用FLAC3D数值模拟软件,对不同的顶煤厚度、锚固长度进行模拟,得出最大和最小顶板离层量对应的锚固长度。经现场调整支护方案后,监测显示围岩受力平衡,顶板稳定性良好。With the increase of coal mining depth,the phenomenon of roof separation is becoming more and more serious.Based on the en-gineering background of 2202 glue transportation gateway in Yingpanhao Coal Mine,the relationship between anchor strength and roof delamina-tion is discussed by theoretical analysis and numerical simulation,and the relationship between the amount of roof delamination and the anchorage length is obtained by curve fitting.Using FLAC3D numerical simulation software,different top coal thickness and anchorage length are simulated,and the anchorage length corresponding to the maximum and minimum roof separation is obtained.After adjusting the support scheme on site,the monitoring shows that the surrounding rock is balanced and the roof stability is good.

关 键 词：锚固强度 力学模型 动态压力 顶煤厚度 顶板离层 变形控制 

分 类 号：TD353[矿业工程—矿井建设]