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Curing method for fast forming crust layer on yard surface

A solidification method and hard shell technology, which can be used in soil protection, construction, and infrastructure engineering, etc., can solve problems such as low strength and shorten the time for foundation treatment, and achieve uniform properties, stable strength, and low processing costs.

Inactive Publication Date: 2009-07-08
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the strength of the high-moisture content mud is low after filling, construction personnel and machinery cannot enter, and it takes a long time to perform foundation reinforcement treatment. It is proposed that within a short period of time (within 1 month) By artificially forming a hard crust on the surface of dredged silt, an artificial construction platform is provided for the entry of construction personnel and machinery, thereby shortening the time for the entire yard to treat the ground

Method used

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  • Curing method for fast forming crust layer on yard surface
  • Curing method for fast forming crust layer on yard surface
  • Curing method for fast forming crust layer on yard surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of curing method that quickly forms hard shell layer on the surface of stockyard, this method comprises the following steps:

[0021] (1) start the sludge curing machine 4, and mix and stir the sludge and solidified material (also can add lightweight materials such as EPS particles, crushed rubber particles, etc.);

[0022] (2) utilize excavator 5 to lay on the yard surface after stirring;

[0023] (3) After the solidified silt has hardened after laying (about 1 to 2 days), manual or light laying machinery can be driven onto the hard shell layer, and then laid forward in sequence until the entire silt yard is covered.

Embodiment 2

[0025] A kind of curing method that quickly forms hard shell layer on the surface of stockyard, this method comprises the following steps:

[0026] (1) start the sludge curing machine 4, and mix and stir the sludge and solidified material (also can add lightweight materials such as EPS particles, crushed rubber particles, etc.);

[0027] (2) Utilize the mud pump 6 to lay on the surface of the yard after stirring;

[0028] (3) After the solidified silt is laid and hardened (about 1 to 2 days), the construction personnel can walk on the surface of the hard shell layer laid before, and then extend the mud pump mud pipe forward and lay it sequentially until the entire silt yard Paved.

Embodiment 3

[0030] A kind of curing method that quickly forms hard shell layer on the surface of stockyard, this method comprises the following steps:

[0031] (1) manually or mechanically spread the solidified material on the surface of the mud,

[0032] (2) Utilize the in-situ sludge solidification machine 8 to mix and stir the sludge and the solidified material 7 in situ;

[0033] (3) After mixing well and waiting for the solidified sludge to harden (about 1 to 2 days), a manual or light in-situ solidification machine can be driven onto the previously laid hard shell layer, and then laid forward in sequence until the entire sludge yard is covered. .

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Abstract

The invention relates to a solidification method for forming hard shell layer rapidly on storage yard, used in the rapid foundation treatment to the large amount of dredged mud storage yard generated in hydraulic and water environment treatment, and harbor and navigation channel construction. The invention comprises the following steps: a) mixing the mud and solidification material and stirring, and laying the mixture on the surface of the storage yard; b) after the solidified mud is hardened, the constructor walks onto the hard shell layer carrying machines to lay the mixture forwards on until the whole storage yard is completed. Aiming to the problems that: the hydraulic filled mud with high water content has a low strength, the constructors and machines can not enter, and the foundation reinforcing treatment has to be postponed for a long time, the invention provides the method capable of forming an artificial hard shell layer on the surface of hydraulic filled mud in a short time after hydraulic filling; provides a manmade construction platform for constructors and machines, thereby shortens the total storage yard foundation treatment time.

Description

technical field [0001] The invention relates to water conservancy, water environment treatment, and a method for rapid foundation treatment of a large number of dredged silt yards generated in the construction of ports and waterway projects. Re-use of field land. Background technique [0002] With the development of water conservancy, water environment management, ports, waterways and other engineering constructions, a large amount of dredged silt will inevitably be produced. Dredged silt is a kind of solid waste with high moisture content, which cannot be used directly. Usually, the land is requisitioned to set up a storage yard. Placement-based, taking up a lot of land resources. It is estimated that the annual dredging volume in Jiangsu Province reaches 50 million cubic meters, the annual dredging volume in the Pearl River Delta region reaches 80 million cubic meters, and the dredging volume of heavily polluted sediment in Taihu Lake reaches 25.12-34.48 million cubic met...

Claims

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Application Information

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IPC IPC(8): E02D3/12
Inventor 朱伟张春雷汪顺才李磊刘青松
Owner HOHAI UNIV
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