软弱地层下管片支护的数值模拟研究  

Numerical Simulation of Segment Support under Soft Ground

作　　者：汪学清[1] 马炯[1] 乔胜利[1] 胡徳俊 侯公羽[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

出　　处：《矿冶工程》2016年第1期11-14,共4页Mining and Metallurgical Engineering

基　　金：国家自然科学基金资助(U1361210);中央高校基本科研业务费专项资金资助(2009QL11)

摘　　要：将超短钢纤维混凝土的准静态力学实验结果作为参数,运用到钢纤维混凝土管片的数值模拟中,通过对软塑状黏性土、饱和粉土地层条件下不同材料的支护结果进行对比,得出在该地层条件下采用钢纤维混凝土管片可以有效减少隧道变形。The quasi-static mechanical tests was conducted for ultra-short steel fiber reinforced concrete, with results taken as parameters for numerical simulation of steel fiber reinforced concrete segments. Based on the comparison among the supporting method with different material under soft clay, saturated silt, it is concluded that steel fiber reinforced concrete adopted for such soft ground would display superior performance in reducing the tunnel deformation.

关 键 词：钢纤维混凝土管片 软弱地层 数值模拟 支护 

分 类 号：TU452[建筑科学—岩土工程]