钢板桩支护技术在桥梁承台基坑施工中的应用

摘要

In this paper, the foundation of the bridge on the Chaobai River is taken as an example. For the field situation, the combination support technology of the steel sheet pile and the inner support is adopted. The construction technology is simple and the anti-seepage and supporting effect is achieved, which solves the problem of excavation. The monitoring results show that the deformation of the foundation pit support is within the allowable range, and mechanical software calculation results are basically consistent, which shows that the supporting system is safe and reliable, and has achieved good economic and social benefits.%以潮白河上的桥梁承台基坑为例, 针对现场情况, 采用了钢板桩和内支撑的组合支护技术, 施工工艺简便, 起到了防渗及支护效果, 解决了基坑开挖难题.监测结果表明, 基坑支护结构的变形在允许范围内, 与力学软件的计算结果基本吻合, 说明支护体系安全可靠, 取得了较好的经济和社会效益.