黄土公路隧道仰拱曲率对结构受力的影响分析  

Analysis on Influences of Invert Curvature on Structural Stress of Loess Highway Tunnel

作　　者：任越 祝华杰 REN Yue;ZHU Huajie(Lüliang North Expressway Management Co.,Ltd.,Lüliang,Shanxi 033000,China;Shanxi Transportation Technology Research&Development Co.,Ltd.,Taiyuan,Shanxi 030032,China)

机构地区：[1]吕梁北高速公路管理有限公司,山西吕梁033000 [2]山西省交通科技研发有限公司,山西太原030032

出　　处：《山西交通科技》2023年第3期104-106,114,共4页Shanxi Science & Technology of Transportation

摘　　要：采用有限差分数值分析软件对黄土公路隧道仰拱二衬不同曲率进行三维力学性能分析,并通过室内模型试验验证了数值分析结果,探究了仰拱曲率对于隧道受力变形的影响规律,得到了使支护结构受力较优的仰拱二衬曲率半径。The three-dimensional mechanical properties of different curvatures of the secondary lining of the loess highway tunnel invert was analyzed by the finite difference numerical analysis software.The numerical analysis results were verified by indoor model tests,and the influencing law of the invert curvature on the deformation by force of the tunnel was explored.The curvature radius of the secondary lining of the invert which can make the support structure better stress was obtained.

关 键 词：黄土公路隧道 仰拱曲率 结构受力 数值分析 室内模型试验 

分 类 号：U451.4[建筑科学—桥梁与隧道工程]