A construction technology of on-site pre-assembly and overall hoisting of large cylinder auxiliary grids of lattice-type steel sheet piles

A grid-type steel sheet pile and large cylinder sub-grid technology, applied in sheet pile wall, foundation structure engineering, construction, etc., can solve the problems of long piles, poor geological conditions, etc., achieve fast vibration settling speed, and simple operation on piling site. , the effect of fewer process steps

Active Publication Date: 2017-05-03
CCCC THIRD HARBOR ENG
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  • Description
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  • Application Information

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Problems solved by technology

3) Poor geological conditions make the pile length longer

Method used

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  • A construction technology of on-site pre-assembly and overall hoisting of large cylinder auxiliary grids of lattice-type steel sheet piles
  • A construction technology of on-site pre-assembly and overall hoisting of large cylinder auxiliary grids of lattice-type steel sheet piles
  • A construction technology of on-site pre-assembly and overall hoisting of large cylinder auxiliary grids of lattice-type steel sheet piles

Examples

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Embodiment Construction

[0030] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0031] This example takes the steel sheet pile grid island wall of the artificial island described in the background technology section as the corresponding construction project, in order to specifically illustrate the entire implementation of the combined construction process of the grid-type steel sheet pile large cylinder auxiliary grid pre-assembled and integrated, and pile-connected and scattered process.

[0032] In this example, the implementation of the project has the following conditions:

[0033] 1) On-site height limit conditions

[0034] This project is close to Hong Kong Chek Lap Kok International Airport, and the entire construction area is located in the aviation height limit area of ​​Hong Kong Chek Lap Kok Airport. The constru...

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Abstract

The invention discloses a construction process of a site pre-assembling and integrated driving of a large cylindrical secondary cell of a cellular steel sheet pile. The process comprises the following steps: arranging a corresponding secondary cell assembling bracket at a construction site; directly pre-assembling the cellular steel sheet pile to form the large cylindrical secondary cell on the assembling bracket; directly distributing a plurality of vibration hammers through a floating crane for vibration sinking to hoist the assembled secondary cell from the assembling bracket and then insert into a locking port of a connecting pile of a main cell and the secondary cell at a cylinder position; starting the vibration hammers at the same time to perform vibration sinking for the secondary cell steel sheet pile; operating single hammer by groups to perform vibration sinking in place in case of insufficient overall vibration sinking. With the adoption of the process, the problems of the prior art can be solved; the construction of a dyke using relatively short cellular steel sheet piles in all land formation projects applies; the process is particularly applied to areas where large floating cranes cannot enter, such as the intertidal zone with shallow water, and aerial height limitation areas close to airports.

Description

technical field [0001] The invention relates to a construction technique for an artificial island on the sea, in particular to a large cylindrical auxiliary lattice of an offshore lattice-type steel sheet pile, in which a plurality of vibratory hammers are used to vibrate and sink the auxiliary lattice steel sheet piles pre-assembled on site at the same time. Background technique [0002] Artificial islands are generally artificially built land in shallow waters near the coast. As a place for offshore operations or other purposes, most of them are connected to the shore by trestles or undersea tunnels. In a coastal country with developed modern industry, the dense population and crowded cities along the coast have greatly restricted the further development and construction of new enterprises and public facilities, and the problems of residence, traffic, noise, water and air pollution in the original city itself are also difficult. solve. Therefore, the construction of artif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D7/18E02D5/04
Inventor 王伟徐立新徐明贤苗艳遂郑荣平胡雪华毕宇李仁富孙二猛翟鸣皋邓涌
Owner CCCC THIRD HARBOR ENG
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