钢栈桥在深水施工中的设计与应用

Design and Application of Steel Trestle in Deep Water Construction

针对援尼日尔二桥钻孔灌注桩深水施工中遇到的水深流急、跨径大、施工中不能中断通航等施工难题,通过合理设计钢栈桥、固定钻孔平台,加快了施工进度,提高了项目经济效益。该文以项目钢栈桥设计、施工为例,介绍了钢栈桥在深水施工中的一些技术的措施,可供同行借鉴。

Aiming at the construction difficulties of deep water, fast current, long span and not able to interrupt the navigation in the deep water construction of cast-in-situ piles of Niger Bridge No.2, the reasonable design and the fixing of drilling platform speed up the construction schedule and improve the economic benefit of project. The article introduces some technical measures taken in the design and the deep water construction of steel trestle of this project.