与地应力耦合的软煤巷道断面形状  

The sectional shape of roadway in soft coal coupling with stress field

作　　者：南培珠[1] 孙鑫[2] 王金安[2] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]北京科技大学土木与环境工程学院,北京100083

出　　处：《西安科技大学学报》2009年第4期419-423,共5页Journal of Xi’an University of Science and Technology

摘　　要：依据轴变论思想,结合结构力学的力学机理,研究了适应高水平应力软岩煤巷的断面形状。研究表明"平顶弧帮"形巷道围岩承载、抗弯、自稳能力均优于直墙矩形巷道。通过UDEC数值模拟,从破坏场、应力场和位移场等方面分别验证了弧墙的优越性,特别是对煤巷的两帮变形能起到更有效的控制作用。Based on axis variation theory and structural mechanics, the study on suitable shape of roadway under high horizontal stress condition is carried out. The study shows that the shape of flat roof with curved wall has better loading, bending and self-stabilization capacity than the tunnel in a shape of straight side walls. By making use of UDEC numerical analysis on failure field, stress field and displacement field, the advantage of arc sides has been proved. The curved sides of roadway could especially control the side wall deformation.

关 键 词：软煤巷道 断面形状 地应力 

分 类 号：TD263[矿业工程—矿井建设]