Lifting platform system for placing large caisson in water

Abstract

A lifting platform system for placing a large caisson in water comprises a plurality of prefabricated platforms and lifting platforms supported in water. One side of the lifting platform leans on the edges of the prefabricated platforms. The tops of the prefabricated platforms and the tops of the lifting platforms are the same in structure and each sequentially comprise a face plate and a truss beam of a mesh structure from top to bottom. The lower sides of the truss beams of the prefabricated platforms are supported by the top ends of steel pipe columns which are arrayed in a matrix mode. The lower ends of the steel pipe columns are hit into a water bottom mud field. The lower sides of the truss beams of the lifting platforms are hinged to the top ends of the lifting rods. The bottoms of the lifting rods with the lower ends extending in the steel pipe columns are supported by a prefabricated concrete foundation at the lower ends of the steel pipe columns through a plurality of supporting bases. Without renting a semi-submersible barge prefabricated and transported large caisson, the prefabricating and transporting cost of the large caisson is greatly reduced, and the transporting safety of the large caisson is improved. After a project ends, the prefabricating platforms and the lifting platforms can be repeatedly used after being detached, and the resource utilization rate is increased.

Description

technical field [0001] The invention relates to a launching transportation system for box-shaped concrete prefabricated parts used for building large wharves and embankments, in particular to a platform system for transferring large concrete caissons from land or water platforms to water, and belongs to the technical field of hydraulic engineering . Background technique [0002] Large caissons are generally prefabricated in land prefabrication yards, and then loaded to semi-submerged barges, and semi-submerged barges are used to transport large caissons to the waters of the installation site for installation. However, some areas are densely populated and have less available land resources. There is no suitable site for prefabricating large caissons, which need to be prefabricated on semi-submerged barges floating on the sea; there are also some projects that can build land prefabrication yards, but there are no large semi-submerged barges. , and even the semi-submerged bar...

AI Technical Summary

Problems solved by technology

Such as long-term lease of 10,000-ton semi-submersible barge, not only will it cost a huge amount of money, but also as a floating platform, the semi-submersible barge has a large draft area, deep shape, and high dock walls on both sides, so the impact of wind and flowing water on the semi-submersible barge Very large, its shaking will affect the prefabrication quality of the caisson

At the same time, the wind and running water during the construction process have a greater impact on the semi-submerged barge, and there are greater dangers in towing and anchoring in the semi-submersible barge port.

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