Construction method for compound construction of large-scale underground space structure by holes, groove and piles

A technology of spatial structure and construction method, which is applied in underground chambers, earthwork drilling, wellbore lining, etc., can solve problems such as shortening the construction period and restrictions on the surrounding construction environment, so as to reduce construction risks, shorten the construction period, and reduce project costs Effect

Inactive Publication Date: 2012-09-05
乐贵平 +2
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0007] In order to overcome the deficiencies in the above-mentioned prior art, the present invention provides a construction method for composite construc

Method used

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  • Construction method for compound construction of large-scale underground space structure by holes, groove and piles
  • Construction method for compound construction of large-scale underground space structure by holes, groove and piles
  • Construction method for compound construction of large-scale underground space structure by holes, groove and piles

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Embodiment 1

[0052] Embodiment 1 is to build an underground single-span arched structure on the basis of constructing a pilot tunnel using the shallow buried excavation method for the tunnel method, see Figure 1 to Figure 11 , the steps are as follows:

[0053] Step 1, excavating a construction shaft (1) at the planned start construction end.

[0054] Step 2: In the construction shaft (1), two pilot tunnels (2) with a width of 5 meters and a height of 6 meters are constructed in advance by shallow burial and underground excavation in the extension direction of the planned underground space structure.

[0055] Step 3: In the completed pilot tunnel (2), remove the lower part of the lining to construct the support piles (3). The pile diameter of the support piles is 1.2 meters, and the distance between the piles is 2.8 meters.

[0056] Step 4, in the construction shaft (1), the construction of the top groove (4) is carried out in the upper space between two adjacent pilot tunnels (2) by shall...

Embodiment 2

[0062] Embodiment 2 is to build an underground single-span arched structure on the basis of tunnel method using shield to build pilot tunnels, see Figure 12 to Figure 22 , the steps are as follows:

[0063] Step 1, excavating a construction shaft (1) at the planned start construction end.

[0064] Step 2: In the construction shaft (1), two shield tunnels (2) with a diameter of 6 meters are constructed in advance by using the shield method in the extension direction of the underground space structure to be constructed.

[0065] Step 3, in the construction shaft (1), the construction of the top groove (4) is carried out in the upper space between two adjacent shield tunnels (2) by shallow buried underground excavation method, and the long axis of the top groove (4) is It is 4.0 meters long and the short axis is 2.5 meters. It adopts a steel grid concrete structure and is an independent and stable structure; steel grids are reserved on the upper sides of the top groove (4) to c...

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Abstract

The invention relates to a construction method for compound construction of a large-scale underground space structure by holes, a groove and piles. The method comprises the following steps of: firstly building two or more than two pilot holes through an undercutting method or a shield method and other methods; then constructing support piles in the pilot holes, constructing a top groove in a construction vertical well, and constructing top longitudinal beams of the support piles in the pilot holes; completing the construction of a main reinforced concrete structure at the top to enable the support piles, the top longitudinal beams and the main reinforced concrete structure to form a whole; and then excavating oil among the pilot holes by adopting a shallow burying and undercutting method, and constructing an intermediate layer, the main reinforced concrete structure at the bottom and a sidewall once to form an integral underground space structure. The underground space structure constructed by the method disclosed by the invention has the advantages of clear stress, safety and high speed in construction, low engineering cost and higher effectiveness. The method disclosed by the invention can be used for constructing single-layer single-span, single-layer multi-span, multi-layer single-span, multi-layer multi-space and other underground space structures, and is particularly suitable for constructing underground large-span space structures.

Description

Technical field [0001] The invention relates to a construction method for building a large-scale underground space structure, in particular to an urban underground large-span space structure for underground excavation construction. Background technique [0002] At present, the main methods for constructing underground space structures in domestic cities are open-cut method, shallow-buried and hidden-excavation method, and shield tunneling method. The method is restricted by various factors such as the surrounding environment, engineering geology and hydrological conditions in the actual application process. [0003] For the construction of underground space structures in the engineering environment with heavy urban ground traffic, many surrounding buildings, and dense underground pipelines, the open-cut method must carry out traffic diversion, pipeline relocation, etc. during construction, and the noise and vibration generated by the construction will also affect nearby resi...

Claims

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Application Information

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IPC IPC(8): E21D9/00E21D19/00E21D11/10
Inventor 乐贵平刘明保贺美德
Owner 乐贵平
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