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结合灌河大桥主桥南岸承台深基坑开挖支护方案的选择及设计计算,介绍了在方案选择中,锁口钢管桩围堰和双排钢管桩支护两种承台深基坑支护方案的计算思路、技术特点,及桥梁承台临水深基坑支护结构设计计算中的一些关键问题。
Combined with the selection and design of the excavation and support scheme for the deep foundation pit of the south coast cap of the main bridge of the Su River Bridge, the paper introduces two types of caps, Calculating ideas and technical characteristics of foundation pit support scheme and some key problems in design and calculation of retaining structure of deep water foundation pit of bridge cap.