Mudflat CDM method soft foundation reinforcement technology

A technology of soft foundation reinforcement and tidal flats, which is applied in infrastructure engineering, artificial islands, water conservancy projects, etc., can solve the problems of large steel consumption, high cost, and long construction period, so as to increase the support surface, increase stability, and manufacture and install quick effect

Inactive Publication Date: 2009-09-23
NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This method requires prefabricated piles to be built in the soft foundation reinforcement area, and a working platform to be erected on the top of the piles. It is not easy to drive piles, erect and remove the platform in the intertidal mudflat near the coast, and consume a large amount of steel, which is costly and has a long construction period.

Method used

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Embodiment Construction

[0029] A specific embodiment of the present invention is a tidal flat CDM method soft foundation reinforcement process, which adopts a lifting platform ship to carry out soft foundation reinforcement. The platform ship includes a lifting working platform equipped with a deep layer mixer, a platform lifting device and a floating body system. The working platform is connected to the floating body system through the platform lifting device. The floating body system includes a floating box and a column. The platform hoisting device is a lifting winch arranged on the platform and a pulley block arranged on the column, and the pulley block includes a fixed pulley block and a movable pulley block. The interior of the column is provided with an inlet and drainage system, which includes a submersible pump and a valve. The valve is arranged at the bottom of the column, and the valve is switched by a dowel rod.

[0030] The process is as follows:

[0031] (1) Set up survey guides and la...

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Abstract

The invention relates to a mudflat CDM method soft foundation reinforcement technology that adopts an elevating platform ship to implement soft foundation reinforcement. The technology includes the following steps of: establishment of measurement leading marks and arrangement of control points, benchmarking and place taking of the elevating platform ship, sitting on sea bed and positioning of the elevating platform ship, place taking of a deep stirrer, and implementation of CDM construction and floating and translocation of the elevating platform ship. The invention adopts the elevating platform ship to implement soft foundation reinforcement, and as the elevating platform ship adopts a self-floating leg upright column, a working platform is combined with the self-floating leg upright column through elevation, thus forming a floating ship to ensure sufficient floatage and stability and take the tide for flexible translocation, or forming a working platform sitting on the sea bed to be suitable for shallow sea soft foundation and having stronger function of resisting wind, wave and current. During the implementation of the soft foundation reinforcement, the technology greatly reduces the manufacturing cost of special platform equipment for soft foundation reinforcement, simultaneously quickens the manufacture and installation and plays an important role in shortening working period.

Description

technical field [0001] The invention relates to a tidal flat soft foundation reinforcement technology, in particular to a tidal flat CDM method soft foundation reinforcement technology. Background technique [0002] At present, there are mainly two types of soft foundation reinforcement in tidal flat CDM methods at home and abroad: filling method and pile driving and erecting platform method. These two methods have the following disadvantages: [0003] (1) Filling method [0004] This method requires a large amount of excavated soil, and the filling area is larger than the soft foundation reinforcement area. At the same time, a wave-retaining wall must be mortared to prevent the attack of large waves. Setting up CDM piles on the filling surface increases the length of the drill pipe and wastes cement and soil. Moreover, the filling needs to be excavated after the soft foundation is treated. The construction period is long and the cost is high, and the cost is even higher d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/46E02B17/02
Inventor 刘德进王国之周跃平陈建永王成生张宝昌
Owner NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG
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