桩基托换在鄂尔多斯大道桥扩建工程中的应用

Application of Pile Foundation Underpinning in Ordos Avenue Bridge Extension Project

结合鄂尔多斯大道桥扩建工程桩基托换技术方案的论证与实施,阐述了桩基托换的相关影响因素和相应的解决措施。桩基托换的前期规划设计应力求具有全局性、前瞻性、可行性;可有效解决改扩建工程中新旧构筑物基础相冲突的问题;应注重工程设计与施工的过程控制,综合多学科技术优势及技术手段。桩基托换技术在该工程的应用取得了良好的工程效果。

Combined with the demonstration and implementation of the pile foundation underpinning technical scheme for Ordos Avenue Bridge Extension Project, this paper sets forth the relative influence factors and the relevant solving measures of pile foundation underpinning. The preliminary planning and design of pile foundation underpinning should strive to have the globality, foresight and feasibility, can effectively solve the conflicting problems between the old and new structure foundations in this extension project, should pay attention to the process control of engineering design and construction, and synthesize the multidisciplinary technological superiority and technical means. The application of pile foundation underpinning technology has achieved the good engineering effect in this project.