矿井回采巷道锚杆支护参数优化研究  

Study on Optimization of Anchor Support Parameters in Mine Retrieval Roadway

作　　者：尹新华 Yin Xinhua(Huayang Group Qiyuan Coal Co.,Ltd.,Jinzhong Shanxi 045400)

机构地区：[1]华阳集团七元煤业有限责任公司,山西晋中045400

出　　处：《机械管理开发》2022年第6期132-133,143,共3页Mechanical Management and Development

摘　　要：针对浅层巷道常用支护措施用于深层地质条件时出现地面高压、破碎岩较多以及围岩较弱等问题,以某煤矿回采巷道为研究对象,研究了一种不良地质条件下弱层组合支撑系统,主要通过增加螺栓连接系统的初始支承刚度和强度,以控制膨胀变形,保持围岩的完整性,优化支护的参数。用FLAC三维方法模拟了回采巷道的稳定性,得到了围岩的变形特征和应力分布,并提出了一种新型组合支撑系统及地面监测措施,确保矿井的安全。The common support measures for shallow roadways are difficult to be used in deep geological conditions,mainly reflected by high ground pressure,more fractured rock and weaker surrounding rock.Taking a coal mine return roadway as an example,a combined support system for weak layers under adverse geological conditions is studied,mainly by increasing the initial support stiffness and strength of the bolted system to control the expansion deformation,maintain the integrity of the surrounding rock and optimize the parameters of the support.The stability of the back mining roadway was simulated by FLAC three-dimensional method,and the deformation characteristics and stress distribution of the surrounding rock were obtained,and a new combined support system and ground monitoring measures were proposed to ensure the safety of the mine.

关 键 词：回采巷道 深层工作面 弱层组合支撑系统 FLAC3D 

分 类 号：TD353[矿业工程—矿井建设]