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Construction method for double-circular shield near-distance passing through building or structure

A technology of double-circle shield tunneling and construction method, which is applied in earthwork drilling, wellbore lining, tunnel lining, etc., and can solve problems such as accelerating project progress, difficult settlement control, and reducing project investment

Inactive Publication Date: 2007-03-21
SHANGHAI TUNNEL ENGINEERING CO. LTD.
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

It is difficult to control the settlement of buildings or structures such as double-circle shields passing through underground raw water box culverts, common ditches, and multi-storey residential houses built on the surface. After sufficient preliminary preparations, scientific research, standardized construction, and In the case of precise settlement control in the later stage, the double-circle shield can successfully pass through buildings or structures at close range, which not only avoids unnecessary relocation, speeds up the project progress, but also reduces project investment

Method used

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Examples

Experimental program
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Embodiment Construction

[0064] Provide following embodiment in conjunction with content of the present invention:

[0065] Take a rail transit double-circle shield section passing through a multi-storey building at a short distance as an example: the project uses a Φ6.52m×W11.12m mud-filled earth pressure balance double-circle shield for construction, and the shell length of the shield machine is It is 7.145m, and the size of the tunnel is φ6.3m×W10.9m.

[0066] The project is divided into two sections, A and B. In Section A, the double-circle shield machine has successfully crossed the raw water box culvert at close range. It is -7.895m, which is an uphill section with a slope of 2‰, and the plane is a straight section.

[0067] Lining 409 to 447 ring double-circle shields in Section B. The double-circle shield machine passes through the common ditch and its surrounding structure on the south side of Zhangyang Road. The minimum clear distance between the top of the shield machine and the common dit...

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Abstract

The present invention relates to a double circular shield construction method passing through building or structure, belonging to the field of building engineering technology. Said construction method includes the following steps: 1, earlier stage preparation for passing through building or structure; 2, adopting protection measure for building or structure; 3, construction monitoring; 4, making double circular shield be passed through building and structure; and 5, adopting secondary grounting measure.

Description

technical field [0001] The invention relates to a construction method in the technical field of tunnel engineering, in particular to a construction method for a double-circle shield passing through a building or structure at a short distance. Background technique [0002] Shield method tunnel construction technology has been widely used in tunnel construction in energy, transportation and other fields, and has become the core technology of underground space development. Double-circle shields can save underground space resources, improve the ability of subway lines to pass through narrow roads, effectively reduce the cross-sectional area of ​​tunnel excavation and the width or depth of working wells, and reduce engineering costs. It will be widely used in future tunnel construction. With the continuous increase of urban density, the continuous increase of high-rise buildings, and the underground is covered with many pipelines, it is inevitable that the double-circle shield co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00E21D9/093E21D11/00
Inventor 周文波顾春华吴惠明吴列成张曙郭士峰潘浩
Owner SHANGHAI TUNNEL ENGINEERING CO. LTD.
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