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Method for constructing underground space by shield-shallow buried covered excavation composite method

A technology of shallow burial and underground excavation, which is applied in underground chambers, earthwork drilling, wellbore lining, etc., can solve the problem that a single construction method cannot give full play to its advantages, and achieves shortened construction period, fast construction speed, and reduced waste. The effect of the amount of work

Inactive Publication Date: 2012-10-24
乐贵平 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a construction method for constructing underground space with shield tunneling-shallow buried underground excavation composite method, to solve the problem that the existing underground space construction method is limited by the surrounding construction environment in the implementation process, and a single construction method cannot fully utilize Technical issues with its advantages

Method used

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  • Method for constructing underground space by shield-shallow buried covered excavation composite method
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  • Method for constructing underground space by shield-shallow buried covered excavation composite method

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Effect test

Embodiment 1

[0047] Embodiment one sees Figure 1 to Figure 5 As shown, a construction method for constructing an underground space with a shield-shallow buried excavation compound method, the steps are as follows:

[0048] Step 1, excavating the construction shaft 9 at the planned construction end;

[0049] Step 2: Determine the diameters of two or more shield tunnels 1 to be built in advance according to the size of the excavation section and the functional requirements of the project, and then, in the construction shaft 9, use the shield tunneling method to advance to the extension direction of the underground space to be constructed Construct the shield tunnel 1, and pre-embed the steel plate on the top segment of the shield tunnel during the shield construction process, and construct the inner support structure in the completed shield tunnel;

[0050] Step 3: In the construction shaft 9, the upper part 2 of the soil between two adjacent shield tunnels is excavated by the shallow buri...

Embodiment 2

[0063] Embodiment two see Figure 6 ~ Figure 9 Shown, this is to utilize the inventive method to build underground highway traffic tunnel, according to the inventive method, at first build three shield tunnels. Temporary supports 6 are respectively erected in the shield tunnels on both sides to stabilize the tunnel structure; a central column 14 is constructed inside the shield tunnel in the middle. According to the requirements of engineering functions, a position can be reserved on the central column 14 as a communication channel for the up and down tunnel structure. According to the method of the invention, the upper part of the soil between two adjacent shield tunnel structures is excavated, and the top and bottom primary linings of the shield tunnels are applied. Then part of the segment structure of the three shield tunnels built in advance is removed, and then the bottom two lining structure 10 and the top two lining structure 11 of the tunnel structure are constructed...

Embodiment 3

[0065] Embodiment three see Figure 10 ~ Figure 12 As shown, it is a specific implementation method for constructing a large section crossing line of a subway shield tunnel using the method of the present invention. Dig the soil between the two shield tunnels that have been built. The large-section crossing line 16 between the subway shield tunnels can be completed by sequentially performing the primary lining on the top, the primary lining on the bottom, erecting supports, and dismantling some segments on the shield tunnels.

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Abstract

The invention relates to a method for constructing an underground space by a shield-shallow buried covered excavation composite method, and belongs to the technical field of construction methods of the underground space. The construction method comprises the following steps of: constructing two or more shield tunnels in advance by a shield method; and excavating a soil body between the shield tunnels by a shallow buried covered excavation method. By the method, the construction of the underground space with a large cross section is safe and high-efficiency, a structure is definitely stressed,construction speed is high and construction cost is low. The method can be used for constructing large-scale underground spaces in various forms.

Description

technical field [0001] The invention relates to a construction method for constructing an underground space. Background technique [0002] At present, the main methods of domestic urban underground space structure construction are open-cut method, shallow-buried underground method and shield method, but these three methods are restricted by the surrounding environment to varying degrees in the actual use process. [0003] (1) Open cut method In the case of the construction of underground space structures under the conditions of heavy traffic on the ground in the city, many surrounding buildings and many underground pipelines, traffic must be dredged or even interrupted, and pipelines must be relocated when necessary. In addition, during the construction process of open cut method, the demolition workload of ground structures is heavy, and the noise and vibration generated will also seriously interfere with the life and work of neighboring residents. [0004] (2) The method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D9/06E21D11/00E21D11/10E21D11/14
Inventor 乐贵平贺美德
Owner 乐贵平
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