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Blow-filling method and structure for controlling difference elevation of mud surface after treatment and unloading of soft foundation

A soft foundation treatment and mud surface technology, which is applied in the fields of water filling, soil drainage, application, etc., can solve the problems of high cost and long period, and achieve the effect of simple structure, convenient construction and cost reduction

Inactive Publication Date: 2016-08-17
CCCC TIANJIN DREDGING HARBOR CONSTR ENG +4
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Adopting the above scheme obviously has a long period and high cost

Method used

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  • Blow-filling method and structure for controlling difference elevation of mud surface after treatment and unloading of soft foundation
  • Blow-filling method and structure for controlling difference elevation of mud surface after treatment and unloading of soft foundation
  • Blow-filling method and structure for controlling difference elevation of mud surface after treatment and unloading of soft foundation

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Embodiment Construction

[0023] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0024] see figure 1 and figure 2 , a method of blowing filling and its structure for controlling the differential elevation of the mud surface after unloading the soft foundation treatment, and the specific steps of the filling method for controlling the differential elevation of the mud surface after the unloading of the soft foundation treatment are as follows:

[0025] The first is to form a closed mud receiving area 1 according to the requirements of the working conditions for the cofferdam;

[0026] Next, select the reclamation area 10 and the drainage area 20; wherein said filling area is close to the mud taking area 5, and the drainage area is positioned at the opposite side of the reclamation area, and the outlet 3 is set in the dr...

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Abstract

The invention relates to a blow-filling method and structure for controlling the difference elevation of a mud surface after treatment and unloading of a soft foundation. The structure comprises a mud storage area which is formed by a closed cofferdam, a plurality of blow-filling openings are formed in a cofferdam dyke close to a mud collection area, the distance between every two adjacent blow-filling openings ranges from 150 m to 200 m, and water outlets are formed in the side, opposite to the blow-filling openings, of the cofferdam dyke; blow-filling pipes are installed in the blow-filling openings, the blow-filling pipes are located on the edge of the cofferdam dyke at the initial stage and gradually move deep into a blow-filling area after a beach is formed in the blow-filling area, the extension length of the blow-filling pipes each time is not larger than 50 m, and the accumulative total extension length is not smaller than 400 m; and the blow-filling radiation range of the pipe orifice of each blow-filling pipe in the blow-filling area is not smaller than 500 m. By the adoption of the technical scheme, the project period is greatly shortened, the problem that the elevation difference is large after unloading is completely solved, the problem that distribution of mud in a traditional blow-filling area is nonuniform is also solved, and the blow-filling quality is improved; and meanwhile, the blow-filling method and structure for controlling the difference elevation of the mud surface after treatment and unloading of the soft foundation further have the advantages that the structure is simple, construction is convenient, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of sea reclamation and land reclamation, and in particular relates to a dredging filling method and a structure thereof for controlling the differential elevation of the mud surface after soft foundation treatment and unloading. Background technique [0002] At present, the following problems often exist in the process of land reclamation: [0003] 1. After unloading of soft foundation treatment, the average elevation is lower than the expected requirement. Combined with the construction experience of the soft foundation treatment area around the project, the designed dredging and filling volume after soft foundation treatment and unloading, the mud surface subsides more than expected, and the mud surface after unloading The average surface elevation is lower than expected, and a large amount of backfilling construction will be required in the later stage, resulting in secondary investment. [0004] 2. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/18E02B11/00
Inventor 余迪宋俊强张志国马闯赵伯韬李兴建包胜利张鹏李彦君闫志生李聪亚孙永奎
Owner CCCC TIANJIN DREDGING HARBOR CONSTR ENG
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