Research of Hydraulic Characteristics of Cofferdam and Leaching System on Joint Way of Nanjing Second Yangtse Bridge

Abstract:

The hydraulic filling is the construction method of joint way in Nanjing Second Yangze Bridge. The leaching facility, drainage time and cofferdam stability in filling are key points in design. By laboratory test, the compaction, direct shear and permeability test of different compaction are investigated. The deformation through field monitor is carried during the cofferdam construction and hydraulic filling. After parameter test and stability analysis according to hydraulic filling, it is shown that the drainage ditch in base of cofferdam can satisfy drainage requirement, the leaching time is about half of one month. The compactness of cofferdam is 0.92. The slope of cofferdam during construction and hydraulic filling is in stability by analysis. And the cofferdam is in stable situation during hydraulic filling according to deformation monitoring result.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 1040-1046
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.1040
• Online since: August 2013
• Authors: Jian Yong Shi, Xiang Juan Yu, Ying Bo Ai
• Keywords: Field Monitor, Hydraulic Filling, Laboratory Test, Leaching Facility, Stability Analysis

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