A non-earthing composite structure for a waterproof pavement layer of a top plate for a road tunnel

A technology of composite structure and pavement layer, which is applied in the direction of roads, roads, on-site paved condensing pavements, etc., to achieve the effects of prolonging service life, improving waterproof performance, and mitigating impact

Inactive Publication Date: 2015-01-07
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Abstract
  • Description
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Problems solved by technology

However, there is no data showing that the rubber asphalt stress layer is applied to the waterproof pavement structure of the roof of the underground road.

Method used

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  • A non-earthing composite structure for a waterproof pavement layer of a top plate for a road tunnel

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Embodiment Construction

[0017] In the waterproof pavement layer composite structure of the roof under zero-covered soil of the present invention, the structural layers from top to bottom are rubber asphalt protection layer 1-waterproof layer 2-epoxy resin bottom coating 3-cement concrete roof 4.

[0018] The cement concrete roof 4 is leveled first, the leveling layer is composed of fine-grained cement concrete, and the construction joints, expansion joints and seams are treated with caulking paste.

[0019] Epoxy resin base coat 3 adopts epoxy resin adhesive, and paints one layer (about 0.5kg / m2) as the case may be 2 ) or two layers (0.9~1kg / m 2 ), and spread quartz sand of appropriate particle size on the surface of the treatment agent.

[0020] Epoxy resin binder (or epoxy resin waterproof coating) is widely used in bridge deck waterproofing, but it is relatively rare in underground road roof waterproofing. Epoxy resin adhesive has strong cohesive power, and has outstanding cohesive power to the ...

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Abstract

The invention relates to a non-earthing composite structure for a waterproof pavement layer of a top plate for a road tunnel. The structure comprises the following structural layers from top to bottom: a rubber pitch protective layer, a waterproof layer, an epoxy resin priming coat and a cement concrete top plate. The invention provides a composite structure for a waterproof pavement layer of a top plate capable of efficiently resisting drying and watering cycle and impact load of the surface load. The composite structure for a waterproof pavement layer of a top plate has superior waterproof performance and capacity of resisting the impact load, greatly improves the integrity and effectiveness of the waterproof system of the road tunnel, enhances the structural durability and satisfies the waterproof requirement of the top plate of the road tunnel.

Description

technical field [0001] The invention relates to underground structure engineering, in particular to a composite structure of a waterproof pavement layer on the roof of an underground road under zero-covered soil. Background technique [0002] With the development of my country's reform and opening up, economic prosperity, and accelerated urbanization, urban highways, subways, water supply and drainage, power cables, and gas supply tunnels have been constructed rapidly. The construction of underground tunnels has alleviated the shortage of land resources and improved the ground environment and traffic conditions. However, there are inevitably structural water leakage problems in underground projects, which affect the normal operation and service life of tunnels. Therefore, engineering waterproof design and construction is an important part of underground tunnel engineering implementation. [0003] The roof of the shallow-covered underground structure is not only affected by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32
CPCE01C7/32E01C7/325
Inventor 乔英娟范益群
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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