电厂线特大桥深基坑承台施工关键技术

Construction Key Technology for Deep Foundation Pit Cap of Grand Bridge on Power Plant Line

承台是桥梁的主要承载结构,承受和分布由墩身传递的荷载,对桥梁的承载能力有直接的影响,特别是针对目前国内对桥梁的跨度和承载能力要求越来越高的现状,桥梁承台施工方法选择对施工质量的提升十分重要。本文结合工程实际对特大桥深基坑承台的施工方法做了详细的介绍,对施工中的关键技术问题进行了分析,认为对整个施工流程严格的质量控制和监控量测,是保证类似重要工程质量的关键技术手段。

Cap is the main bearing structure of a bridge. It bears and distributes the load transmitted by the pier and has a direct impact on the bearing capacity of the bridge. Especially, because the requirements of the span and bearing capacity of the bridge are getting higher and higher in China, the selection of the construction method for cap is very important for improving the construction quality. Based on a engineering practice, this paper introduces the construction method for deep foundation pit cap of grand bridge, and analyzes the key technical problems in the construction, and considers that strict quality control and monitoring measurement of the whole construction process which are the key technical means to ensure the quality of similar important projects.