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Lightweight building block for roadbed and retaining wall

A kind of retaining wall, lightweight technology, applied in the direction of roads, roads, infrastructure engineering, etc., can solve the problems of post-construction settlement of roadbed too large, high project cost, high roadbed filling, achieve strength self-support, reduce project cost, The effect of reducing the rear earth pressure

Inactive Publication Date: 2012-07-18
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the construction of road facilities on loose or soft soil (silt, soft clay, organic soil and peat soil), conventional roadbed fill is usually used to support the static and dynamic effects (traffic and seismic loads) transmitted by the pavement structure. , due to the weak foundation soil, high compressibility, high filling soil of the roadbed, and heavy soil weight, it will cause excessive post-construction settlement of the roadbed, and the soft soil foundation needs to be treated, the project cost is high, and the construction period is long
Therefore the use of this conventional roadbed filler is greatly restricted

Method used

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  • Lightweight building block for roadbed and retaining wall
  • Lightweight building block for roadbed and retaining wall
  • Lightweight building block for roadbed and retaining wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 2 As shown, the block of the present invention is used for roadbed backfilling.

[0026] Craftsmanship

[0027] Mix and stir fly ash, additives (lime and cement) and water in a mass ratio of 2:1 (0.8:0.2):1 to make slurry, and pour it into waste tires 2 . It only needs to be primed into the rubber tire beforehand. Fly ash and discarded rubber tires are used to turn waste into treasure and solve the problem of environmental pollution.

[0028] construction technology

[0029] Compared with the traditional roadbed construction method, this new material made of fly ash and discarded tires only needs to arrange and connect the new block materials in advance according to the design requirements, and the other construction procedures are the same. Simple and fast construction. The construction process is as follows:

[0030] Leveling the site - measuring and positioning - completing the construction of a unit - moving to the next position - laying geotex...

Embodiment 2

[0032] Such as image 3 As shown, the block of the present invention is used for backfilling the retaining wall.

[0033] Craftsmanship

[0034] Mix and stir fly ash, additives (lime and cement) and water in a mass ratio of 2:1 (0.8:0.2):1 to make slurry, and pour it into waste tires 2 . Fly ash and discarded rubber tires are used to turn waste into treasure and solve the problem of environmental pollution.

[0035] construction technology

[0036] Compared with the traditional retaining wall construction method, this new material made of fly ash and discarded tires only needs to arrange and connect the new block materials in advance according to the design requirements, and the other construction procedures are the same. , The construction is simple and the construction speed is fast. The construction process is as follows:

[0037] Leveling the site - measuring and positioning - completing the construction of a unit - moving to the next location - backfilling - completi...

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PUM

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Abstract

The invention discloses a lightweight building block for a roadbed and a retaining wall, which comprises a waste rubber tire and lightweight padding injected into the rubber tire. The lightweight building block is characterized in that the lightweight padding is prepared by mixing pulverized fuel ash, additive and water; and the mass ratio of the pulverized fuel ash, the additive and the water is2:1:1. By adopting a prefabricated building block, the construction is convenient, the construction cost is greatly reduced, and the construction period is shortened. Meanwhile, by adopting the wasterubber tire and the industrial waste pulverized fuel ash instead of natural soil padding, the invention saves natural resources, lightens the pollution of solid waste to the environment, reduces the engineering construction cost and has favorable economic and social benefits in aspects of resources and environmental protection.

Description

technical field [0001] The invention relates to the technical field of a lightweight geotechnical material used for backfilling of road foundations and retaining walls, in particular to a lightweight block used for road foundations and retaining walls. Background technique [0002] At present, a large amount of soil is needed in the roadbed and retaining wall structure, because soil is the most basic building material and a natural resource. Especially in the construction of road facilities on loose or soft soil (silt, soft clay, organic soil and peat soil), conventional roadbed fill is usually used to support the static and dynamic effects (traffic and seismic loads) transmitted by the pavement structure. , due to the weak foundation soil, high compressibility, high filling of the roadbed, and heavy soil, it will cause excessive post-construction settlement of the roadbed, and the soft soil foundation needs to be treated, the project cost is high, and the construction perio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/00E02D29/02E04C1/40
Inventor 王照宇梅国雄王洪霞
Owner NANJING TECH UNIV
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