辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(6)：598-603,6.DOI:10.11956/j.issn.1008-0562.2017.06.007
分岔隧道相交区围岩变形规律的数值模拟
Numerical simulation of deformation laws of surrounding rock at the intersection of bifurcate tunnel
摘要
Abstract
As a kind of complex tunnel form,the bifurcate tunnel will come across the choice of the best intersecting angle and understand the deformation law of surrounding rock at the intersection.Based on the project of cross tunnel in the cu-chun interval of Dalian Metro as background,the process of construction of T bifurcate tunnel which angle range from 0° to 90° are simulated by using finite different method software FLAC3D.The deformation law of intersection is concluded by simulative data,deformation nephogram,deformation vector diagram from FLAC3D simulation and measured data.Result of simulation show that the construction of inclined channel causes the surrounding rock disturbed.When intersecting angle is 15°,disturbance of surrounding rock is the largest.The variation of surrounding rock deformation is not obvious when intersecting angle between 45° and 90°,but it is quite obvious when angle between 15° and 45°.The deformation of the surrounding rock caused by excavation of inclined channel is less than the excavation of main tunnel.关键词
分岔隧道/FLAC3D模拟/交叉角/扰动/变形规律/沉降监测Key words
bifurcate tunnel/FLAC3D simulating/intersecting angle/disturbance/deformation law/subsidence monitoring分类
建筑与水利引用本文复制引用
王忠昶,姜雪峰,李亚洲..分岔隧道相交区围岩变形规律的数值模拟[J].辽宁工程技术大学学报（自然科学版）,2017,36(6):598-603,6.基金项目
国家自然科学基金(51574055,51009015) （51574055,51009015）
