Frozen soil preventing highway

A technology for highways and permafrost, applied in roads, roads, buildings, etc., can solve the problems of subgrade extrusion damage, easy subsidence of subgrade, heavy filler, etc., and achieve strong frost heaving resistance, avoid subgrade muddying, and difficult subsidence Effect

Active Publication Date: 2019-09-27
SICHUAN AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the traditional subgrade filling is heavy, the foundation stress is large, and the subgrade is easy to settle. The soil...

Method used

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  • Frozen soil preventing highway

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Embodiment

[0017] Such as figure 1 As shown, the present embodiment provides a kind of frost-resistant soil highway, including a roadbed 1 and a road surface arranged on the top of the roadbed 1. The roadbed 1 is made of foam lightweight concrete and extends from above the ground line to below the freezing line 10; the roadbed 1 The two sides below the frozen line 10 are respectively provided with a water-resistant layer 2, and the water-resistant layer 2 is obtained by compacting clay; the two sides of the roadbed 1 located between the ground line and the frozen line 10 are respectively provided with a protective layer 3, and the protective layer 3 and the roadbed A foam layer 4 is arranged between the sides of the roadbed 1, and the foam layer 4 is made of polyurethane foam plastic; reinforcement layers are respectively arranged on both sides of the roadbed 1 above the ground line, and the reinforcement layer includes a high-strength plastic panel 5 arranged on the side of the roadbed 1...

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Abstract

The invention provides a frozen soil preventing highway. Water-resisting layers are correspondingly arranged on the two sides, positioned under a frost line, of a roadbed; the roadbed is specifically a foam lightweight concrete material and extends a position below the frost line from a position above the ground line; and furthermore, protective layers are correspondingly arranged on the two sides, positioned between the ground line and the frost line, of the roadbed. According to the frozen soil preventing highway, one element of water is tried to be blocked; through the protective layers and the water-resisting layers, and the water is stopped from entering the roadbed from the two sides and the bottom of the roadbed so as to prevent the roadbed from generating freeze thawing. Through combination of novel roadbed filling foam lightweight concrete and the water-resisting layers and the protective layers, the roadbed is enabled to work in an environment without water, the freeze thawing damage to the roadbed is skillfully avoided, and the frozen soil preventing highway is especially suitable for seasonal frozen soil regions or permafrost regions.

Description

technical field [0001] The invention belongs to the technical field of antifreeze roads, in particular to an antifreeze road. Background technique [0002] Permafrost is widely distributed in my country. The vast area west of the line from Helan Mountain to Ailao Mountain, as well as the area east of this line and north of the Qinling-Huaihe line are seasonally frozen soil areas, accounting for about 55% of my country's land area. According to statistics, about 75% of the traffic routes in our country are in the seasonally frozen soil area. After the roads in the seasonally frozen soil area are completed and put into operation, as the climate changes alternately, the seasonally frozen soil repeatedly freezes and thaws, seriously affecting the strength of the roadbed. , and for permafrost areas, due to the heat absorption of asphalt and other materials, the permafrost under the roadbed will gradually become seasonally frozen soil with high water content. In this case, the roa...

Claims

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Application Information

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IPC IPC(8): E01C3/00E01C3/06
CPCE01C3/00E01C3/06
Inventor 黄显彬刘晨阳梅玉娇赵伟
Owner SICHUAN AGRI UNIV
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