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Composite structure of top plate waterproof pavement layer of underground road under shallow burial soil

A composite structure and pavement technology, applied in roads, roads, infrastructure engineering, etc., to achieve the effect of improving integrity and effectiveness, excellent waterproof performance and ability to resist impact loads, and delaying development

Inactive Publication Date: 2015-01-07
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no data showing that synchronous crushed stone seal is used for the roof waterproof pavement structure of underground roads.

Method used

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  • Composite structure of top plate waterproof pavement layer of underground road under shallow burial soil

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Embodiment Construction

[0013] In the waterproof pavement layer composite structure of the roof under the shallow covering soil of the present invention, the structural layers from top to bottom are cement concrete protective layer 1-synchronous crushed stone seal layer 2-epoxy resin waterproof layer 3-cement concrete roof 4.

[0014] - Epoxy resin waterproof layer 3 adopts epoxy resin waterproof coating, which can effectively penetrate into the surface of the base layer, not only can seal the concrete roof, prevent the moisture in the concrete from rising to the base layer surface, and play the role of waterproof layer, but also combine with the concrete roof and gravel At the same time, the sealing layer has good bonding performance, and can withstand 180°C paving asphalt layer for a short time. The thickness of the waterproof layer is not less than 2mm.

[0015] Synchronous crushed stone seal layer 2 refers to spraying modified asphalt binder on the above epoxy resin waterproof layer, and then spr...

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Abstract

The invention relates to a composite structure of a top plate waterproof pavement layer of an underground road under shallow burial soil. The composite structure is characterized by comprising a cement concrete protection layer, a synchronous rubble sealing layer, an epoxy resin waterproof layer and a cement concrete top plate in sequence from top to bottom. The composite structure of the top plate waterproof pavement layer has excellent waterproof performance and impact load resistance, largely improves the integrality and the effectiveness of an underground road waterproof system, improves the structural durability, and can satisfy the waterproof requirement of the underground road top plate.

Description

technical field [0001] The invention relates to underground structure engineering, in particular to a composite structure of waterproof pavement layer on the top plate of an underground road under shallow covering 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 affec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32
CPCE01C7/32E02D31/02
Inventor 乔英娟范益群
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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