Research on Construction Technology of Steel Plate Pile Cofferdam and Bearing Platform for Water Piers of the Extra-Large Bridge Crossing Liuxi River
This article combines the actual situation of the extra-large bridge crossing Liuxi River to study the construction technology of the 11#,12#,and 13#bearing platforms located in the Liuxi River.Taking the construction practice of underwater pier caps as the premise,a targeted construction plan is formulated with the steel sheet pile cofferdam construction technology as the core,and comprehensively considering the project characteristics,construction environment,construction period,safety guarantee,investment cost and other factors.A static pressure pile planting machine with a relatively advanced process mechanism is used to efficiently drive the steel sheet piles into the hard rock layers,forming a cofferdam with good water stopping effect,and can greatly shorten the construction period of the cofferdam.The bearing platform and pier body are constructed with steel sheet pile cofferdams,providing a safe and stable working environment for bridge pier construction.Compared with other cofferdam construction techniques,its construction has many advantages such as low cost,short construction period and good application effect.
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