煤矿安全2018，Vol.49Issue(1)：157-159,163,4.DOI:10.13347/j.cnki.mkaq.2018.01.042
内撑式可缩性U型钢支架在巷道支护中的应用
Application of Internal Bracing and U-shaped Yieldable Steel Frame in Roadway Support
周建 1张朋朋 1经来旺 2叶金胜1
作者信息
- 1. 安徽理工大学土木建筑学院,安徽淮南232001
- 2. 安徽理工大学力学与光电物理学院,安徽淮南232001
- 折叠
摘要
Abstract
According to the instability problem of U-shaped steel frame in soft rock roadway,the mechanics principle was applied to calculate the axial force and bending moment with or without internal bracing in U-shaped yieldable steel frame.Combining with the engineering field research,we propose the combined support design type of internal bracing in U-shaped yieldable steel frame and anchor mesh cable.The results show that the max convergence between the two walls of the roadway was about 40.90 mm only and the max convergence between the roof and floor was about 62.45 mm.The deformation of support is not more than 15 mm and the engineering application effect is good.关键词
支架失稳/力法原理/内撑式/移近量/巷道变形/可缩性U型钢支架Key words
support instability/mechanics principle/internal bracing/convergence/deformation of roadway/U-shaped yieldable steel frame分类
矿业与冶金引用本文复制引用
周建,张朋朋,经来旺,叶金胜..内撑式可缩性U型钢支架在巷道支护中的应用[J].煤矿安全,2018,49(1):157-159,163,4.
