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Thermal-insulation roadbed construction method

A construction method and technology of roadbed, applied in the direction of roads, roads, applications, etc., to achieve the effects of enhancing stability and anti-slip ability, suppressing the formation of cracks, and avoiding different densities

Inactive Publication Date: 2020-04-17
马建生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a thermal insulation roadbed construction method to ensure that the slope is firm and not prone to collapse

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A thermal insulation roadbed construction method, the thermal insulation roadbed (1) includes: roadbed base (2), asphalt pavement layer (3), slope base (4), slope insulation concrete layer (5), the section of the roadbed base (2) is Trapezoidal, on which an asphalt pavement layer (3) is set, a side slope base (4) is set on both sides of the subgrade base (2), and a side slope thermal insulation concrete layer (5) is set on the outer slope of the side slope base (4). The thermal insulation concrete layer (5) is also provided with reinforced pipe piles (6) which are perpendicular to the slope surface and pass through the slope thermal insulation concrete layer and the slope base in sequence. One end of the reinforced pipe pile (6) extends into the subgrade base, and the side A plurality of V-shaped reinforced baffles (7) arranged along the slope are poured into the slope thermal insulation concrete layer. ) thickness is 30cm, and the angle between the reinforced pipe pile...

Embodiment 2

[0067] A thermal insulation roadbed construction method, the thermal insulation roadbed (1) includes: roadbed base (2), asphalt pavement layer (3), slope base (4), slope insulation concrete layer (5), the section of the roadbed base (2) is Trapezoidal, on which an asphalt pavement layer (3) is set, a side slope base (4) is set on both sides of the subgrade base (2), and a side slope thermal insulation concrete layer (5) is set on the outer slope of the side slope base (4). The thermal insulation concrete layer (5) is also provided with reinforced pipe piles (6) which are perpendicular to the slope surface and pass through the slope thermal insulation concrete layer and the slope base in sequence. One end of the reinforced pipe pile (6) extends into the subgrade base, and the side A plurality of V-shaped reinforced baffles (7) arranged along the slope are poured into the slope thermal insulation concrete layer. ) with a thickness of 40 cm, the angle between the reinforced pipe ...

Embodiment 3

[0080] A thermal insulation roadbed construction method, the thermal insulation roadbed (1) includes: roadbed base (2), asphalt pavement layer (3), slope base (4), slope insulation concrete layer (5), the section of the roadbed base (2) is Trapezoidal, on which an asphalt pavement layer (3) is set, a side slope base (4) is set on both sides of the subgrade base (2), and a side slope thermal insulation concrete layer (5) is set on the outer slope of the side slope base (4). The thermal insulation concrete layer (5) is also provided with reinforced pipe piles (6) which are perpendicular to the slope surface and pass through the slope thermal insulation concrete layer and the slope base in sequence. One end of the reinforced pipe pile (6) extends into the subgrade base, and the side A plurality of V-shaped reinforced baffles (7) arranged along the slope are poured into the slope thermal insulation concrete layer. ) with a thickness of 30cm, the angle between the reinforced pipe p...

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Abstract

The invention discloses a thermal-insulation roadbed construction method. The thermal-insulation roadbed comprises a roadbed base layer, an asphalt pavement layer, side slope base layers and slope heat preservation concrete layers. The asphalt pavement layer is arranged on the roadbed base layer with a trapezoidal cross section; the side slope base layers are arranged on the two sides of the roadbed base layer. The slope heat preservation concrete layers are arranged on the outer side slope surfaces of the side slope base layers and are provided with reinforcing pipe piles which are perpendicular to the side slope surfaces and obliquely penetrate the side slope heat preservation concrete layers and the side slope base layers in sequence. The side slope heat preservation concrete layers areprovided with reinforcing pipe piles perpendicular to the side slope faces and the reinforcing pipes extend to the roadbed base layer, so that the side slope heat preservation concrete layers and theside slope base layers are firmer under the action of the reinforcing pipe piles, the relation between the side slope heat preservation concrete layers and a roadbed is enhanced, the integrity of theroadbed is enhanced, and the settlement difference between the roadbed and a side slope is reduced. The stability and the anti-sliding capacity of the whole newly-built roadbed slope are enhanced, and cracks formed on the surface of the side slope heat preservation concrete layers are restrained.

Description

technical field [0001] The invention relates to a thermal insulation roadbed construction method, which belongs to the technical field of roadbeds. Background technique [0002] With the rapid development of road and railway construction in my country, roads have been built in alpine regions in recent years. The temperature in cold regions is low in winter, and the seepage and freezing of slopes will increase the load on the slope. The surface material falls off and landslides will weaken the overall strength of the base and bottom foundation, and cause early damage to the pavement structure under the repeated action of long-term driving loads. Cold-proof and heat-insulating subgrades in cold regions, ensuring that slopes are firm and not prone to collapse have become difficult points in the comprehensive treatment of subgrade frost damage. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a thermal insulation road...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/06C04B28/02C04B38/10C04B111/20C04B111/40
CPCC04B28/02C04B2111/00732C04B2111/0075C04B2111/20C04B2111/40C04B2201/20C04B2201/32E01C3/06C04B14/06C04B14/02C04B22/064C04B16/0633C04B24/128C04B24/10C04B22/16C04B24/32C04B24/129C04B2103/302C04B2103/65C04B24/121C04B24/16C04B24/2682C04B38/10Y02A30/60
Inventor 马建生
Owner 马建生