煤矿安全2017，Vol.48Issue(9)：62-65,4.DOI:10.13347/j.cnki.mkaq.2017.09.017
弱胶结泥砂岩互层巷道底鼓联合控制研究
Research on Joint Control for Floor Heave in Weakly Consolidated Mud-sand Stone Interbedded Soft Rock Roadway
许军 1张开顺2
作者信息
- 1. 重庆工程职业技术学院 建筑工程学院,重庆402260
- 2. 中铁十一局集团第五工程公司,重庆400037
- 折叠
摘要
Abstract
Taking the main haulage roadway of Yili No.1 mine as engineering background,the roadway floor heave deformation characteristics and produce mechanism were summarized and analyzed with laboratory experiment.Based on this,a joint control scheme of bolt-grouting support and reinforced concrete floor that combined active support with passive support is presented,and the distribution laws of displacement,stress fields and plastic zones of roadway surrounding rock using this joint control scheme or not were analyzed by numerical simulation.The results show that the joint control scheme can not only control floor heave effectively,but also decrease the roof subsidence deformation and roadway walls convergence,and reduce the surrounding rock mass plastic zone extension.The field monitoring data are consistent with the simulation results,which proves that this scheme can get good control effect.关键词
弱胶结软岩/泥砂岩互层/底鼓机理/联合控制/数值模拟Key words
weakly consolidated soft rock/mud-sand stone interbedding/floor heave mechanism/joint control/numerical simulation分类
矿业与冶金引用本文复制引用
许军,张开顺..弱胶结泥砂岩互层巷道底鼓联合控制研究[J].煤矿安全,2017,48(9):62-65,4.
