Cold-proof heat insulation structure for cold area highway tunnel and construction method of cold-proof heat insulation structure

Abstract

The embodiment of the invention provides a cold-proof heat insulation structure for a cold area highway tunnel and a construction method of the cold-proof heat insulation structure, and relates to the technical field of building of the cold area highway tunnel. The occurrence of frozen damage in a high-altitude cold rich-water area can be effectively prevented, and the construction quality and the driving safety are ensured. The cold-proof heat insulation structure comprises a bonding layer, a heat insulation layer, a protection layer and a reinforcing layer, wherein the bonding layer is formed by bonding mortar, the heat insulation layer is bonded on the base surface of a wall body of the tunnel structure through the bonding layer and is formed by foam glass products, the protection layer is arranged on the surface of the heat insulation layer and is formed by light-weight coating mortar, the reinforcing layer is arranged on the heat insulation layer through the light-weight coating mortar of the protection layer, and the reinforcing layer is alkaline-resistant glass fiber gridding cloth.

Description

technical field [0001] The invention relates to the technical field of construction of road tunnels in severe cold regions, in particular to a cold-proof and heat-preservation structure of road tunnels in severe cold regions and a construction method thereof. Background technique [0002] In today's society, the development of the transportation system directly restricts the development of the country's comprehensive strength. In particular, the implementation of my country's western development strategy and the strategy of revitalizing the old industrial base in Northeast China has further promoted the extension of my country's transportation network to high-altitude and cold mountainous areas. These areas have steep mountains, and building tunnels is the best choice for expanding road and railway networks. However, to build tunnels in cold regions, it is necessary to fully and systematically understand many characteristics of tunnels in cold regions. my country’s experien...

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Problems solved by technology

my country’s experience in building tunnels in severe cold areas is still relatively small, but according to engineering cases from various countries in the world, the construction of high-altitude severe cold tunnels has more technical difficulties than tunnels in general areas. Once handled improperly, it will cause huge losses and funds. waste

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