沿空留巷巷旁支护参数分析与钢管混凝土墩柱支护技术研究  

The analysis of roadside supporting parameters and the support technology in the concrete filled steel tubular column in goaf-side entry retaining

作　　者：王军[1,2] 高延法[1] 何晓升[1] 黄万朋[3] 高琨鹏 杨柳[1] 冯绍伟[1] 

机构地区：[1]中国矿业大学(北京)力学与建筑工程学院,北京100083 [2]山东建筑大学土木工程学院,山东济南250100 [3]山东科技大学矿业与安全工程学院,山东青岛266510

出　　处：《采矿与安全工程学报》2015年第6期943-949,共7页Journal of Mining & Safety Engineering

基　　金：国家自然科学基金重点项目(51134025);中央高校基本科研业务费专项资金项目(2010YL03);中国矿业大学(北京)博士研究生拔尖创新人才培育基金项目(00800015z643)

摘　　要：首先分析了沿空留巷巷旁支护作用规律,给出了巷旁支护体支护阻力与合理压缩量计算公式,提出了钢管混凝土墩柱与矸石墙沿空留巷新技术,并为验证钢管混凝土墩柱沿空留巷可靠性,进行了钢管混凝土墩柱承载能力实验。在实验基础上,研究了钢管混凝土墩柱承载力计算理论与留巷稳定性判据,并进行了墩柱选型实例分析,将钢管混凝土墩柱与矸石墙沿空留巷研究结果应用于工程实践,实践表明该新技术具有承载力高、成本低等特点,适于沿空留巷工程应用。To start with, the roadside support action rules has been analyzed, and the roadside barrier support resistance and rational compressed volume formula have been given. A new technology about gob side entry retaining by using concrete filled steel tube column is put forward. And in order to verify reliability of this technology, the concrete filled steel tube column bearing capacity experiment has been done. Then, on the basis of experiment, the calculation theory and the method of ensuring related parameters have been given and instance analysis of selection of tubular column has been conducted. Finally, this technology has been applied to the engineering practice, which draws the conclusion that this new technology is suitable for gob side entry retaining due to its cheaper cost and higher bearing capacity.

关 键 词：巷旁支护参数 钢管混凝土墩柱 承载力试验 沿空留巷 

分 类 号：TD353[矿业工程—矿井建设]