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Road structure above tunnel and construction method thereof

A road structure and construction method technology, applied in tunnels, roads, roads, etc., can solve problems such as loss of waterproof layer, hidden dangers of waterproof durability in tunnels, etc., achieve the effects of enhancing adhesion, improving waterproof effect, and reducing construction costs

Inactive Publication Date: 2017-09-15
SHANGHAI NO 4 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, canceling the overburden layer will cause the waterproof layer on the top of the tunnel to be gradually lost due to the dynamic load of the vehicle. In addition, without the protection of the overburden layer, the ordinary waterproof layer cannot adapt to the large temperature difference generated during road use. There is a hidden danger of durability in the waterproofing of the tunnel

Method used

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  • Road structure above tunnel and construction method thereof
  • Road structure above tunnel and construction method thereof

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Effect test

Embodiment 1

[0027] refer to Figure 1 to Figure 2 A road structure above a tunnel in this embodiment includes a waterproof base layer 2, a waterproof layer 3, a waterproof protection layer 4, and a pavement layer 5 arranged sequentially from bottom to top, and the waterproof base layer 2 is laid on the top of the tunnel roof 1. Since between the tunnel roof 1 and the pavement layer 5, a waterproof base layer 2, a waterproof layer 3, and a waterproof protective layer 4 are sequentially arranged from bottom to top, replacing the covering soil layer between the tunnel roof 1 and the pavement layer 5 in the prior art, The overall elevation of the tunnel is raised, and the purpose of reducing the difficulty of tunnel construction and the cost of tunnel construction is achieved while ensuring the waterproof effect of the tunnel.

[0028] As a preferred embodiment, in the road structure above the tunnel, the waterproof base layer 2 includes a solvent-free two-component epoxy resin base layer 202...

Embodiment 2

[0033] refer to Figure 1 to Figure 2 , the construction method of the road structure above a kind of tunnel of present embodiment, comprises the steps:

[0034] In the first step, the top of the tunnel roof 1 is cleaned, a solvent-free two-component epoxy resin base layer 202 is laid, and fire-dried quartz sand is spread above the solvent-free two-component epoxy resin base layer 202, Forming a quartz sand layer 201;

[0035] In the second step, after the solvent-free two-component epoxy resin base layer 202 is dry and hard, lay the modified asphalt waterproof membrane 301 for partial tire base road bridges on the top of the quartz sand layer 201, and adopt the method of hot melting at the same time. Solvent-type two-component epoxy resin base layer 202 and modified asphalt waterproof membrane 301 for partial tire base road and bridge, so that the two are closely blended and bonded;

[0036] In the third step, after the construction of the modified asphalt waterproof membra...

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Abstract

In order to effectively protect a waterproof layer at the top of a tunnel when the purposes of lifting the whole elevation of a tunnel and reducing the construction cost and the difficulty are achieved after a road lower earth-covering layer is cancelled, the invention provides a road structure above the tunnel and a construction method thereof. The technical scheme of the road structure above the tunnel is characterized in that the road structure above the tunnel comprises a waterproof matrix, a waterproof layer, a waterproof protective layer and a pavement layer which are sequentially arranged from bottom to top, and the waterproof matrix is laid on a tunnel roof.

Description

technical field [0001] The invention belongs to the field of building construction, in particular to a road structure above a tunnel and a construction method thereof. Background technique [0002] Nowadays, the construction of underground spaces, especially tunnels, has become a key content in the planning and construction of various cities. In many cases, a road will be built above the tunnel, so the construction of the tunnel and the construction of the road above the tunnel often need to be considered as a whole. [0003] A common method is to first determine the elevation of the road above the tunnel, then determine the height of the covering soil layer below the road, and then design the top elevation of the tunnel on this basis. In this way, the elevation of the road and the thickness of the overburden layer will inevitably reduce the overall elevation of the tunnel, further reducing the excavation depth of the tunnel, and virtually increasing the difficulty and cost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C1/04E01C3/02E01C3/06E01C7/32E21D11/38
CPCE21D11/38E21D11/383E01C1/04E01C3/02E01C3/06E01C7/32
Inventor 谢燕青徐亭张铭孔德志黄轶褚伟青郑晏华
Owner SHANGHAI NO 4 CONSTR
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