浅覆土路基构筑物结合部力学响应与设计方法

Mechanical Response of Low Subgrade structure Binding Site and Its Design

摘要:

通过有限元分析，揭示了浅覆土路基构筑物结合部“不协调变形”特征；在力学响应分析结果的基础上，进一步分析了浅覆土路基构筑物结合部路面结构破坏模式与设计状态，并提出了控制结合部不协调变形的指标与标准.从设计状态、设计指标、设计标准、设计流程和设计步骤等方面，系统建立了基于不协调变形控制的浅覆土路基构筑物结合部设计方法，为今后相关工程提供了设计依据、设计思路、技术支持与决策依据.

Abstract:

A finite element analysis shows that the binding site of the low subgrade and structure is characterized by an uncoordinated defermation. Based on the mechanical response analysis results, the failure mode and design status of the binding site are explored in detail, in addition, the indexes and criterion for uncoordinated deformation control are proposed. Then, the design method about the low subgrade structure binding site is established, including the design status, indexes, criterion, process and steps, which offers a reference for the future engineerings in terms of the design foundation, design idea, and technology support as well as the decision making.