Numerical Finite-Element Investigation of the Parameters Influencing the Behavior of Flexible Pipes for Culverts and Storm Sewers under Truck Load
Numerical Finite-Element Investigation of the Parameters Influencing the Behavior of Flexible Pipes for Culverts and Storm Sewers under Truck Load
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影响卡车荷载下涵洞和雨水管道柔性管性能的参数的数值有限元研究
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
A. Godat
中科院分区：
文献类型：
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作者：
O. Chaallal;Madasamy Arockiasamy;A. Godat
摘要本研究的目的是评估影响涵洞和雨水沟柔性管道性能的参数，并检验AASHTO桥梁设计规范中提出的此类管道的强度极限状态。研究中研究的柔性管道有高密度聚乙烯（HDPE）、聚氯乙烯（PVC）和金属管。考虑的管径分别为914mm（36英寸）和1219mm（48英寸）。建立了埋地管道在汽车荷载作用下的三维有限元模型。作者在2D、1D和0.5D埋深（D为管径）下对大直径管道进行的现场试验结果用于评估数值模型的准确性。然后进行了广泛的参数研究，以检查埋深，回填土质量和压实水平对埋管的影响，并在本文中报告了他们的结果。这些参数的影响已经在通过…
AbstractThe objectives of this study are to evaluate the parameters that affect the behavior of flexible pipes for culverts and storm sewers and to examine the strength-limit states of such pipes proposed by the AASHTO bridge-design specifications. The flexible pipes investigated in the study are high-density polyethylene (HDPE), PVC, and metal pipes. The pipe diameters considered are 914 mm (36 in.) and 1,219 mm (48 in.). A three-dimensional finite-element (FE) model has been developed to simulate the behavior of buried pipes under truck load. Results from field tests conducted by the authors for large-diameter pipes under 2D, 1D, and 0.5D burial depths, where D is the pipe diameter, were used to evaluate the accuracy of the numerical model. Extensive parametric studies were then carried out to examine the effect of burial depth, backfill soil quality, and compaction level on the buried pipes, and their results are reported in this paper. The effect of these parameters has been evaluated in terms of thru...