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A heat-absorbing and pressure-absorbing tunnel structure

A tunnel structure and energy technology, applied in tunnels, geothermal energy, tunnel lining, etc., can solve problems such as high geothermal coupling effects, and achieve light weight, high bending resistance, and increased safety factor

Active Publication Date: 2021-01-29
SOUTHWEST JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These structural forms optimize the support force, but do not consider the coupling effect of high ground temperature

Method used

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  • A heat-absorbing and pressure-absorbing tunnel structure
  • A heat-absorbing and pressure-absorbing tunnel structure
  • A heat-absorbing and pressure-absorbing tunnel structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1-2 As shown, a heat-absorbing and pressure-absorbing tunnel structure includes: pressure-yielding energy anchor rod 1, I-shaped steel arch frame 2, primary sprayed concrete layer 3, corrugated steel interlayer module box 4, heat insulation layer 5, waterproof Layer 6, second lining concrete layer 7, cold water pipe 8, hot water pipe 9, multifunctional sensor 10, structural health monitoring element 11, heat exchange hole 12, reserved connection block 13, reserved pipe 14, valve 15;

[0034] The second lining concrete layer 7 is located at the bottom layer, the waterproof layer 6 is welded to the upper surface of the second lining concrete layer 7, and the heat insulation layer 5 is bonded to the upper surface of the waterproof layer 6 through a polyurethane reactive adhesive;

[0035] The inside of the corrugated steel interlayer module box 4 is a laminate 411 composed of multiple horizontal corrugated metal plates, the thickness of which is 0.3-1.0cm, an...

Embodiment 2

[0048] Such as Figure 3-4 Shown, when the present invention is used in high-stress high-temperature tunnel, corrugated steel sandwich module box 4 is as image 3 It can be a rectangular corrugated steel sandwich module, a corrugated steel sandwich module box 4 such as Figure 4 It can be a schematic diagram of a segmented steel sandwich module.

[0049] Figure 5 , Figure 6 The corrugated steel interlayer module box 4 is applied in the ring connection and ring formation of the tunnel. The corrugated steel interlayer module is prefabricated in the factory and assembled on site; when used in a ring, one or more rings are formed along the inner contour of the tunnel. The corrugated steel interlayer module box 4 It can be welded with the initial support structure to form a whole. It is installed between the front and rear two-plate and two-lined molded concrete in the axial direction of the tunnel. It can withstand the radial and axial pressure of the tunnel and play a role i...

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Abstract

Provided is a heat collection, energy absorption and yielding tunnel structure. The heat collection, energy absorption and yielding tunnel structure comprises yielding-type energy anchor rods, I-shaped steel arch frames, a primary shotcrete layer, a corrugated steel interlayer module box, a heat-insulating layer, a waterproof layer, a secondary lining concrete layer, cold water pipes, hot water pipes, a multifunctional sensor, structural health monitoring elements, heat exchange holes, reserved connecting blocks, reserved pipes, valves and heat exchange pipe sets.

Description

technical field [0001] The invention belongs to the field of tunnel engineering, engineering disaster prevention and mitigation, and energy underground engineering, and in particular relates to a heat-absorbing and pressure-absorbing tunnel structure. Background technique [0002] "High ground temperature, geothermal water, and high ground stress" have become the main characteristics of tunnel projects such as water conservancy and hydropower, transportation, and mines located in plate activity areas. When the buried depth of the tunnel is too large, or is affected by underground hot water such as magma activities and hot springs, under the action of high rock temperature, additional temperature stress will be generated in the lining structure, which may cause concrete cracking and affect the safety and durability of the lining, and It will weaken the mechanical properties of waterproof materials, affect the waterproof effect, and have a potential impact on the structural sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/14E21D20/00E21D11/18E21D11/10E21D11/00E21D11/38F24T10/10F24T50/00
CPCE21D9/14E21D11/00E21D11/10E21D11/18E21D11/38E21D20/00F24T10/10F24T50/00Y02E10/10
Inventor 严健何川董唯杰汪波徐国文
Owner SOUTHWEST JIAOTONG UNIV