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A combined support structure for tunnels suitable for aeolian sand formations

A technology of supporting structure and aeolian sand, which is used in tunnels, tunnel linings, underground chambers, etc. to ensure safety.

Active Publication Date: 2021-08-06
伍永伶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a combined support structure for tunnels suitable for aeolian sand formations, so as to solve the problem that the traditional method of building tunnels cannot avoid potential safety hazards caused by tunnel uplift or uneven settlement

Method used

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  • A combined support structure for tunnels suitable for aeolian sand formations
  • A combined support structure for tunnels suitable for aeolian sand formations
  • A combined support structure for tunnels suitable for aeolian sand formations

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and specific embodiment the content of the present invention is described in further detail:

[0024] A tunnel composite support structure suitable for aeolian sand stratum, such as Figure 1 to Figure 5 As shown, it includes an outer support structure 1 and an inner support structure 2.

[0025] The outer support structure 1 and the inner support structure 2 have the same structure but different sizes.

[0026] The outer support structure 1 includes a support tube 3 and a flexible connector 4. The cross section of the support tube 3 is adapted to the tunnel structure. The support tube 3 is a rigid body, and the two support tubes 3 are connected by a flexible connector 4. .

[0027] The flexible connector 4 includes a hinge 5 and a seal 6, the two ends of the hinge 5 are respectively hinged with the support pipe 3, the number of the hinge 5 is multiple, and they are evenly arranged in the circumferential direction of the ...

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Abstract

The invention relates to a combined support structure for tunnels suitable for aeolian sand formations, which aims to solve the problem that hidden safety hazards caused by tunnel uplift or uneven settlement cannot be avoided by using traditional tunnel construction methods. The tunnel composite support structure suitable for aeolian sand stratum includes an outer support structure and an inner support structure with the same structure, the outer support structure includes support pipes and flexible connectors, and the cross section of the support pipe is suitable for the tunnel structure The support pipe is a rigid body, and the two support pipes are connected by a flexible connector. The flexible connector includes a hinge and a seal. The two ends of the hinge are respectively hinged with the support pipe. The seal is a ring structure. And it has flexibility, the two ends of the seal are respectively connected with two support pipes; the outer support structure is set outside the inner support structure, and the outer support structure and the inner support structure are connected by multiple compression springs arranged between them. The vertical subsidence of the inner support structure of the equipment with the largest mass in the tunnel is less than 10mm during operation.

Description

technical field [0001] The invention relates to a support structure, in particular to a combined support structure for tunnels suitable for aeolian sand formations. Background technique [0002] Aeolian sand refers to sand dunes formed by sand and gravel transported and deposited by wind. Aeolian sand and other materials are different from ordinary soils. It is primary minerals, etc., and some sand dunes are mobile, so there will always be more problems in building tunnels in the aeolian sand tunnel stratum; after the excavation of aeolian sand, the stratum will consolidate and will form uneven settlement. The impact is serious, and it also affects operational safety. For example, in areas rich in groundwater, if the groundwater rises, the tunnel may float up, affecting structural safety, clearance and lines. Using traditional methods such as using higher-strength primary support and secondary lining for support can be applied to areas with low uneven settlement and less gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/00E21D11/38
CPCE21D11/00E21D11/38
Inventor 马殷军伍永伶张宏张振琼马新仓李其俭卢文辉
Owner 伍永伶