江怀雁
江怀雁.地下浅埋箱形混凝土结构在车-土-地下水共同作用下的受力分析[J].混凝土与水泥制品,2019(3):32-34+47.
JIANG H Y.Stress Analysis on Underground Thin-wall Box Concrete Structure under the Coactions of Vehicle-soil-underground Water[J].China Concrete and Cement Products,2019(3):32-34+47.
地下浅埋箱形混凝土结构在车-土-地下水共同作用下的受力分析
江怀雁
江怀雁.地下浅埋箱形混凝土结构在车-土-地下水共同作用下的受力分析[J].混凝土与水泥制品,2019(3):32-34+47.
JIANG H Y.Stress Analysis on Underground Thin-wall Box Concrete Structure under the Coactions of Vehicle-soil-underground Water[J].China Concrete and Cement Products,2019(3):32-34+47.
摘 要:以实际地下电力工作井为例,通过ABAQUS建立了两种三维模型,分析了其从施工到服役过程中在车辆移动荷载、土压力、地下水压力共同作用下的实际受力状况,并与箱涵平面框架计算方法进行了比较。分析结果表明,箱涵平面框架计算方法用于中小型整体现浇地下浅埋箱形结构设计时,计算弯矩值较为保守,承载力储备较大,说明市政管线工作井采用预制装配式具有较好的可行性,且箱涵平面框架计算方法可用于预制装配式地下浅埋箱形结构的设计。
Abstract: An actual underground electric working well is taken as an example, two types of 3D models are created by ABAQUS program to analyzed its real internal forces distribution under the coactions of soil pressure, groundwater pressure and moving vehicle loads, undergoing the process from construction to service, and compare with PFM2D method. The analysis results indicate that the PFM2D method is rather conservative in bending moment for designing such medium and small integral cast-in-situ shallow buried underground thin-wall box concrete structure, which means higher bearing capacity reserves. So, prefabricated municipal working well shows good feasibility, and PFM2D method is also suitable for designing it.
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