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A method for treating saturated over-wet soil foundation in pre-drilling engineering with graded construction slag geobags

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, long construction period, difficult construction, etc., and achieve the goals of reducing landfill land, less processes, and shortening the construction period Effect

Inactive Publication Date: 2016-06-01
SOUTHWEAT UNIV OF SCI & TECH
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  • 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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  • A method for treating saturated over-wet soil foundation in pre-drilling engineering with graded construction slag geobags
  • A method for treating saturated over-wet soil foundation in pre-drilling engineering with graded construction slag geobags
  • A method for treating saturated over-wet soil foundation in pre-drilling engineering with graded construction slag geobags

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Embodiment

[0021] The overall design of the present invention is shown as figure 1 As shown in figure 1 The specific plan is as follows:

[0022] a) Use a light backhoe excavator and a light loader to level out a site, set up a layer of bamboo rafts on the surface of the site, and lay three bamboos perpendicular to the road, with a spacing of 1m. The bamboos are laid continuously along the road and fixed with bamboo strips (such as figure 2 Shown), and then manually step on the pressure to make the bamboo raft fully contact with the weak foundation;

[0023] b) Crush the waste concrete and waste bricks to less than 4cm with a crusher, and then according to the particle size requirements in Table 1, the waste concrete blocks and waste bricks are put into the geotechnical bag at a mass ratio of 70:30 to form graded construction slag Geobag

[0024] c) Lay the graded construction slag geobags on the bamboo rafts, pave three layers staggered, and fill the gaps with broken construction slag. After...

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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 saturated and over-wet soil foundations of pre-drilling engineering with a geobag of graded construction dregs. 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 exceeds the optimal water content by a lot. It is unfavorable to compaction and stability of roadbed, and it is easy to cause roadbed settlement and develop to road damage. The use of heavy compaction standard compaction is easy to form "spring soil"; if you simply increase the compaction work, the tonnage of the road machine and the number of rolling passes, it will not significantly increase the compactness of the soil, but will cause shear damage inside the soil. Lead to soil structure damage and "spring" phenomenon. W...

Claims

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Application Information

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Patent Type & Authority Patents(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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