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Soft foundation road structure and quick settlement repairing technology adopting road structure

A technology of road structure and soft foundation, applied in the directions of roads, roads, buildings, etc., can solve the problem of lack of good treatment methods, and achieve the effect of shortening the maintenance period, improving the stability effect, and improving the repair efficiency.

Active Publication Date: 2018-05-29
温州伟国建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the treatment in the early stage is not in place, or the road surface drops due to environmental factors such as weather, groundwater settlement, and small earthquakes in the later stage, there is no better treatment method.

Method used

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  • Soft foundation road structure and quick settlement repairing technology adopting road structure
  • Soft foundation road structure and quick settlement repairing technology adopting road structure
  • Soft foundation road structure and quick settlement repairing technology adopting road structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1a

[0041] see figure 1, a soft ground road structure, including a rammed soil layer 1, a concrete crushed stone cushion layer 2, an acrylic adhesive layer 3, an expansion layer 4, an acrylic adhesive layer 3, and an asphalt base layer 5, which are successively laid on the original soft foundation from bottom to top And asphalt pavement layer6.

[0042] see figure 1 , There are embedded grooves 7 on both sides of the road. The pre-embedded groove 7 is a square pipe groove, including a base 71 and a sealing plate 72 fixed on the base 71 by bolts. A side wall of the base 71 abuts against the edge of the road, and the side is provided with a plurality of drainage holes 73 communicating with the cavity of the pre-embedded groove 7 . Drain holes 73 are provided at the junction of the acrylic adhesive layer 3 and the asphalt base 5 , the side of the concrete crushed stone cushion 2 and the side of the expansion layer 4 .

[0043] see figure 1 and figure 2 , before laying the ramm...

Embodiment 1b

[0047] The only difference between embodiment 1b and embodiment 1a is that the support body 47 of embodiment 2 is selected as woolen yarn.

Embodiment 1c

[0049] The only difference between embodiment 1c and embodiment 1a is that the supporting body 47 of embodiment three is selected as flax thread.

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Abstract

The invention discloses a soft foundation road structure and a quick settlement repairing technology adopting the road structure. According to the technical scheme, the soft foundation road structureis characterized in that the structure comprises a tamped soil layer, a concrete broken stone cushion layer, a bituminous basic layer and a bituminous pavement layer, all of which are sequentially laid from bottom to top, an expansion layer is arranged between the concrete broken stone cushion layer and the bituminous basic layer and comprises multiple expansion cushion bodies and diaphragms for dividing the adjacent expansion cushion bodies, each expansion cushion body comprises a rubber coat and reinforced fiber cloth attached to the rubber coat, inner cavities filled with resin adhesive areformed between the rubber coats and the diaphragms, the inner walls of the inner cavities are coated with a curing agent in advance, the curing agent can cure the resin adhesive, a grouting pipe communicating with the inner cavities penetrates through the concrete broken stone cushion layer, an exhaust pipe communicating with the inner cavities penetrates through the bituminous basic layer, and the structure is used for quick repair conducted in the later period of settlement of a soft foundation road.

Description

technical field [0001] The invention relates to road settlement repair, in particular to a soft ground road structure and a rapid settlement repair process using the road structure. Background technique [0002] Our country has a vast territory, and the soil quality varies from south to north, and the soil quality in some areas is relatively soft. Roads built on soft foundations are prone to subsidence and cracking of the road surface after inspection because the previous foundations were not strong enough. Therefore, it is necessary to deal with the soft foundation to make the settlement strong enough to achieve the consolidation of the foundation. Degree and stability meet the design requirements, this process is called soft ground treatment. [0003] At present, the soft foundation treatment method is generally based on pretreatment, such as: composite foundation method, plastic drainage board combined with surcharge, plastic drainage board combined with vacuum preloadin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/04
CPCE01C3/00E01C3/04
Inventor 李国贤
Owner 温州伟国建设有限公司
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