Tremie frame for marine bridge construction and platform construction process of tremie frame method

Abstract

A pipe shelf and the construction technique of flat roof based on it used to the construction of the bridge on the sea. Each main body comprises sixteen one-meter diameter steel pipes, every neighboring two pipes jointed together by the 0.4-meter diameter horizontal pipes and 0.328-meter diameter slash pipes. A sink against board set to the bottom 1.5 meters, it used to the construction technique of the flyover on the sea. The concrete process of the construction contains make and transport of the pipe shelf, sink and orientation of the pipe shelf, set of the orientation stake, fixed connection of the stake and the pipe shelf and the installation of the top structure of the flat floor. The pipe shelf of the invention act as the horizontal support of the whole flat as well as the orientation measure and the operation flat of the flat stake's base., and also have the strongpoint that it has the short time construction on the sea, can shorten the deadline of the project heavily, change the single stake orientation to the whole orientation, reduce the cumulate error between the stakes, can assure the stability of stakes, has the good whole pressed and can easy guarantee the quality and the safety.

Description

technical field [0001] The invention belongs to the field of construction engineering, in particular to a bridge foundation construction facility and technology. Background technique [0002] At present, for the offshore reinforced concrete pouring of large-scale bridge main tower bored piles in the middle of the sea, where the sea conditions in the construction area are harsh, and the construction period is short, the conventional offshore steel platform is generally used for construction. The steel pipe piles of the platform are firstly laid at the designed position, and then all the piles are connected on the water surface with section steel, and then the deck layer is laid on the top of the piles to form a platform. For cross-sea bridges, especially the sea area where the Donghai Bridge is located, the wind is strong, the waves are high, and the current is fast. The ship can locate the single pile to the design requirements, but it is difficult to ...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing piling conventional assembly offshore steel platform construction method in the construction of the cross-sea bridge cannot be applied to the sea area where the East China Sea cross-sea bridge is constructed with strong wind, high waves and rapid current, and provides a Construction of Jacket and Construction Technology for Offshore Construction Steel Platform under Sea Conditions

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