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施工监测在跨海矮塔斜拉桥施工过程中的作用至关重要。施工前,根据工程特点和设计要求制定合理系统的监测方案,施工中通过对现场重要数据的采集、整理、分析,得出结构施工动态修正参数并找出主要影响因素进行调整。应特别注意的是,监测方法、监测时机的选取将直接决定数据的可靠性及最终结果的准确性。本文以广东省南澳大桥主桥施工为背景,介绍了测量基准建立、测量监测方法及主要影响因素分析,为类似工程测量监测施工提供了一定借鉴。
The role of construction monitoring in the construction of a CTA bridge is of crucial importance. Before construction, according to engineering characteristics and design requirements to develop a reasonable system of monitoring programs, construction site through the collection of important data, collation and analysis, the dynamic construction of structural parameters and to find out the main influencing factors to be adjusted. Special attention should be paid, monitoring methods, monitoring the timing of the selection will directly determine the reliability of the data and the accuracy of the final result. Based on the construction of the main bridge of Nan’ao Bridge in Guangdong Province, this paper introduces the establishment of measurement standards, the methods of measurement and monitoring as well as the analysis of the main influencing factors, which provides some references for the similar construction surveying and monitoring.