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Method for processing saturated overwet soil foundation for prespud operation by using graded construction slag soilbag

A technology of dregs and bags, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of a large amount of sand and gravel, difficult construction, long construction period, etc., and achieve the goal of reducing landfill, shortening construction period, and fewer processes Effect

Inactive Publication Date: 2014-05-21
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a graded construction slag geotechnical bag treatment for the defects of the prior art in the treatment of the saturated super-wet soil foundation of the pre-drilling project, such as long construction period, need for a large amount of sand and gravel, and difficult construction. The Method of Saturated Wet Soil Foundation in Pre-drilling Works

Method used

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  • Method for processing saturated overwet soil foundation for prespud operation by using graded construction slag soilbag
  • Method for processing saturated overwet soil foundation for prespud operation by using graded construction slag soilbag
  • Method for processing saturated overwet soil foundation for prespud operation by using graded construction slag soilbag

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Embodiment

[0021] The overall design diagram of the present invention is as follows figure 1 shown, according to figure 1 The design, its specific scheme is as follows:

[0022] a) Use a light backhoe excavator and a light loader to level out a site, set a layer of bamboo rafts on the surface of the site, lay three bamboos perpendicular to the direction of the road, with a distance of 1m, lay bamboo continuously along the direction of the road, and fix them with bamboo strips (such as figure 2 shown), and then manually step on it to make the bamboo raft fully contact with the weak foundation;

[0023] b) Use a crusher to crush the waste concrete and waste bricks to less than 4cm, and then put the waste concrete blocks and waste bricks into geotechnical bags according to the mass ratio of 70:30 according to the particle size requirements in Table 1 to form graded building slag Geobags;

[0024] c) Lay graded construction slag geobags on the bamboo rafts, lay three layers with staggere...

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Abstract

The invention discloses a method for processing a saturated overwet foundation for a prespud operation by using a graded construction slag soilbag. The method is conducted as follows: a layer of bamboo rafts are horizontally paved on a to-be-processed field, then three layers of construction slag soilbags are paved on the bamboo rafts, the adjacent two layers of soilbags are paved in a staggered manner, a gap between the two construction slag soilbags is filled with the engineering construction site soil or the crushed construction slag, a rubbing mill is used to grind after each layer is paved until the compaction reaches the required compactness of 1.5-2.0g / cm<3>, and finally, gravels with the thickness of 50mm and the grain size less than or equal to 4mm are paved on the construction slag soilbag. The method is convenient to implement, has less procedures, is low in construction cost, and protects the environment; and the application of the construction slag soilbag can help reduce the gravels and farmland soil required for the engineering construction.

Description

technical field [0001] The invention relates to a construction method for foundation treatment, in particular to a method for treating the saturated over-wet soil foundation of pre-drilling engineering with graded construction dregs geotechnical bags. Background technique [0002] Over-wet soil has high water content, high viscosity, low bearing capacity, poor stability and easy deformation. Over-wet soil is very harmful to roads. The water content of over-wet soil is much higher than the optimal water content, which is not conducive to the stability of subgrade compaction, and it is easy to cause subgrade settlement and then develop into road surface damage. It is easy to form "spring soil" when using heavy-duty compaction standard compaction; if simply increasing the compaction work, increasing the tonnage of the road roller and the number of rolling times, the compactness of the soil will not be significantly increased, but the interior of the soil will be sheared. Lead ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D3/08
Inventor 文华张敏高成凤刘保华马锋于忆骅何鑫王波
Owner SOUTHWEAT UNIV OF SCI & TECH
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