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Underground engineering supporting structure and construction method thereof

A technology for supporting structure and underground engineering, applied in underground chambers, shaft equipment, shaft lining and other directions, can solve the problems of high construction risk, high construction cost, complex construction, etc., to reduce risks, simple construction methods, and convenient construction. Effect

Pending Publication Date: 2020-12-11
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of complex construction, slow speed, high risk or high construction cost in existing construction methods, the present invention proposes an underground engineering support structure and its construction method, which solves the problem of high construction risk in the traditional excavation method of underground engineering

Method used

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  • Underground engineering supporting structure and construction method thereof
  • Underground engineering supporting structure and construction method thereof
  • Underground engineering supporting structure and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Embodiment 1: a kind of underground engineering support structure, such as figure 1 As shown, it includes two leading pilot tunnels 3 obtained through underground excavation construction, an arch structure 4 and a floor structure are obtained by construction between the two leading pilot tunnels 3, and the floor structure is arranged below the arch structure 4; the preceding pilot tunnels 3 is provided with a combined lining 5, and the arch structure 4 and the floor structure are connected with the combined lining 5. The arch structure can support the soil to be excavated, which is convenient for excavating the soil under the protection of the arch structure during construction, and avoids the collapse of the soil during the excavation process. The two combined linings are connected with the two ends of the arch structure correspondingly. Reinforce and support the ends of the arch structure and transfer and share loads for the arch structure.

[0045] The arch structur...

Embodiment 2

[0051] Embodiment 2: a kind of construction method of underground engineering support structure, comprises the steps:

[0052] S1, construction of originating shaft 1 and receiving shaft 2: as figure 2 As shown in Fig. 1, select appropriate positions at both ends of the construction site where the underground project is to be constructed to excavate the originating shaft 1 and the receiving shaft 2 respectively;

[0053] The setting of originating shaft 1 and receiving shaft 2 can facilitate the hoisting in and out of excavation equipment, equipment jacking construction, and material in and out. During specific construction, the originating shaft 1 and receiving shaft 2 can be set according to the construction requirements of the roadheader. size of.

[0054] S2, the construction of the first pilot tunnel 3: if image 3 As shown, the leading pilot tunnel 3 is respectively excavated between the originating shaft 1 and the receiving shaft 2, and a combined lining 5 is laid on...

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Abstract

The invention discloses an underground engineering supporting structure and a construction method thereof. The problem that the construction risk of a traditional excavation method of underground engineering is large is solved. The underground engineering supporting structure comprises two pilot tunnels obtained through underground excavation construction, an arch structure and a bottom plate structure are obtained through construction between the two pilot tunnels, and the bottom plate structure is arranged below the arch structure; and combined linings are arranged in the pilot tunnels, andthe arch structure and the bottom plate structure are both connected with the combined linings. According to the underground engineering supporting structure, due to the arrangement of the arch structure, the top of an excavated soil body can be supported, the two ends of the arch structure are synchronously supported through the combined linings, the overall excavation structure is reinforced, meanwhile, the load borne by the arch structure is shared, the tunnel structure design is reinforced, and the service life of a tunnel is prolonged.

Description

technical field [0001] The invention belongs to the technical field of underground engineering, and in particular relates to an underground engineering support structure and a construction method thereof. Background technique [0002] The 21st century is the century for the development and utilization of underground space, especially with the rapid development of cities and the excessive development of resources, it will inevitably bring about a series of serious problems such as environmental pollution, energy shortage, traffic congestion and water shortage. Do not develop underground projects to relieve the pressure brought about by the shortage of land resources. [0003] The current construction methods commonly used in urban underground engineering mainly include open-cut method, underground excavation method, pipe jacking method and so on. Although the open cut method has the advantages of simple construction technology and mature technology, the construction of the o...

Claims

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Application Information

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IPC IPC(8): E21D13/00E21D13/02E21D11/14E21D11/18E21D11/10E21D11/08
CPCE21D13/00E21D11/14E21D11/18E21D11/10E21D11/08Y02E10/20
Inventor 程鹏张雯雯于少辉李洋付增罗长明苏明浩
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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