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Dredging mud direct dike building method

A mud, direct technology, applied in dikes, coastline protection, dams, etc., can solve the problems of low shear strength, large amount of sand and gravel, long cycle, etc., and achieve the effect of good stability, fast construction progress and shortened construction period.

Inactive Publication Date: 2007-11-28
张志铁 +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to invent a kind of embankment that can directly use dredging mud (mainly clay) to solve the problems that a large amount of sand and gravel are needed, and the shear strength is low, the cost is high, and the cycle is long. The embankment (including cofferdam) and the embankment built have high shear strength and can meet the overall and local stability requirements of the embankment under the most unfavorable load combination

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  • Dredging mud direct dike building method

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] As shown in Figure 1.

[0026] A construction method using dredging mud to directly build embankments, which consists of the following steps:

[0027] 1. Earthbag cofferdam construction

[0028] 1) Lay 1 to 2 layers of geotechnical bags 11 filled with medium-coarse sand or coarse aggregates on the site where the cofferdam is designed. The size of the geotechnical bag is 1m×1m×0.3m (length×width×thickness). Polypropylene mixed with anti-aging agent, the weight of the geotechnical bag is ≥100g / m 3 , Woven bags with a warp and weft density ≥ 75×44, and a rope for hoisting is attached to the outside of the geotechnical bag. The soil bags are connected to each other with hoisting ropes to form a whole.

[0029] 2) After the laying of each layer of soil bags, use a medium or small flat plate vibrator to roll it 3-4 times to make the soil bags flat ...

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Abstract

The invention relates to a direct diking method of dredging mud, belonging to the diking technology field, characterized in that it comprises soil bag cofferdam construction, blowing mud into cofferdam, vacuum well-point dewatering, vacuum electro-osmosis dewatering and low-energy dynamic compaction so on. It solves the problem that prior diking by slurry is provided with required mass sand stone, low shear strength, high cost and long period. The invention is provided with high strength for diking cofferdam, good stability, quick construction progress and short work period.

Description

technical field [0001] The invention relates to a construction method of embankment body in the field of water conservancy or construction, especially a construction method suitable for use in areas lacking soil or sand and gravel and using dredging mud as the main embankment material, specifically a construction method A dredging mud direct embankment method. Background technique [0002] At present, there are many technologies for building embankments with dredging mud: such as sand bag dam embankment, bagged solidified silt embankment filling method, dredging mud drainage and consolidation embankment technology, and low-level vacuum preloading method. Among them, the "low-level vacuum preloading method" strengthens the mud slurry through vacuum negative pressure, and completes the "set cutting" function of dredging and embankment, which has good economic and social benefits. However, this process method also has some obvious shortcomings, so that the implementation and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/10
Inventor 张志铁刘斯宏
Owner 张志铁
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