沿空留巷巷旁墙体支护强度合理性研究  

Rationality study on support intensity of roadside wall in gob-side entry retaining

作　　者：林东才[1] 赵一先[1] 栾恒杰[1] 陈泽宇[1] 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590

出　　处：《煤炭工程》2016年第2期47-49,共3页Coal Engineering

摘　　要：以东滩煤矿3202工作面的混凝土砌块墙为研究背景,采用理论计算和数值模拟(FLAC3D)等方法分析了巷道围岩变形和应力分布,得到巷旁墙体在不同条件下的支护强度及受力和变形情况。通过分析结果可知,混凝土砌块墙的支护强度在各个阶段可以满足留巷的需求,此研究为正确合理设计支护墙体提供了必要的依据。Based on the concrete block wall of panel 3202 in Dongtan coal mine,and strength calculation of concrete block wall, theoretical calculation and FLAC3 Dwere applied to analyze the surrounding rock deformation and stress distribution,obtaining the support intensity and the stress and deformation of roadside wall in different conditions.According to the analysis,support intensity of concrete block wall meets the demand of gob- side entry retaining in each stage. The study provided necessary basis for rational roadside design.

关 键 词：沿空留巷 巷旁支护 墙体强度 数值模拟 理论计算 无煤柱开采 

分 类 号：TD353[矿业工程—矿井建设]