桩基托梁挡土墙与横向排水涵洞工程设计分析-《高速铁路技术》

文章信息/Info

Title:: Design of Retaining Wall with Pile-beam Foundation and Transverse Drainage Culvert

Author(s):: TANG Liming; China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China

Keywords:: retaining wall with pile-beam foundation|culvert|cracking|engineering measure

摘要:: 桩基托梁挡土墙在陡坡地形以及低承载力地基路堤收坡加固工程中应用广泛，该结构中桩基础和托梁主要解决地基承载力的问题，挡土墙解决收坡问题，挡土墙与下部结构间为铰支受力模式，故结构与传统的路肩桩板墙相比具有明显的技术和经济优势。当桩基托梁挡土墙与横向结构物组合应用时，须对桩基的变形进行有效控制，以确保横向结构物与挡土墙间不发生错位、拉裂，从而避免影响其使用功能。本文计算了桩基托梁挡土墙的受力，并结合具体工程提出了桩基托梁挡土墙与横向结构工程设计原则，可为今后类似工程提供借鉴。

Abstract:: The retaining wall with pile-beam foundation is widely applied in the reinforcement engineering of embankment constructed on the steep slope and low bearing capacity foundation. The pile and the beam are used to resolve the low bearing capacity and the retaining wall is used to reinforce the embankment. Compared with the traditional pile-sheet wall on the shoulder, the hinged support force mode adopted between retaining wall and lower structure has obvious technical and economic advantages. When the retaining wall with pile-beam foundation is combined with the transverse structure, the deformation of pile foundation must be effectively controlled to ensure that there is no dislocation or tension crack between transverse structure and retaining wall, so as to avoid affecting its use function. In the paper a calculation is done on stress of retaining wall with pile-beam foundation and based on engineering case, the design principles are put forwards for retaining wall with pile-beam foundation and transverse structure, which can provide reference for similar projects in the future.