对拉连续板墙加固公路软土地基结构分析与计算

Analysis and Calculation of Continuous Wall on Soft Soil Foundation of Highway Reinforced Structure

利用对拉连续板墙结构的整体性约束路堤变形,从而相对提高路堤地基承载力与路堤稳定性,是公路深软土地基加固工程实践中的全新方法.由于该方法应用时间短,作用机理复杂,目前没有完善的设计理论与方法,工程实践超前理论研究,极大地限制了该方法的应用.本文分析了对拉连续板墙结构的组成、工作机理、结构内力影响因素,建立了拉结筋拉力与竖向位移的计算公式,为对拉连续板墙加固软土地基结构设计提供了理论支撑,可供对拉连续板墙加固软土地基结构设计参考.

The use of deformation on the overall constraint embankment stayed continuous wall structure, to improve the bearing capacity and stability of embankment embankment foundation, it is a new method in engineering practice of reinforcing deep soft soil ground. Due to the application of the method of short time, the effect mechanism is complex, there is no design theory and method of sound, advanced theory research on engineering practice, it greatly limits the application of the method. This paper analyzes the factors affecting the composition, working mechanism, the internal force of the structure of continuous wall structure, calculation formula of tie bar tensile force and the vertical displacement is established, which provides theoretical support for the pull of continuous wall reinforcement structure design of soft soil foundation, for the continuous wall reinforcement structure on soft soil foundation design reference.