A structure for strengthening the foundation of buildings around the wellhead at the shield end

A foundation reinforcement and building technology, applied in the direction of basic structure engineering, construction, soil protection, etc., can solve problems such as inclination, collapse, cracking, etc., achieve scientific and reasonable structural design, ensure overall strength, and prevent collapse

Active Publication Date: 2020-06-02
广东雄桥建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the shield tunneling of the subway departs or arrives, the buildings near the originating shaft or the receiving shaft are affected by the side penetration, bypassing and breaking of the portal during the shield tunneling, and are prone to dangers such as tilting and cracking. If they are not fixed and protected, It is easy to cause shaking or collapse of residents' houses or buildings, seriously affecting the lives of residents and the normal use of buildings

Method used

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  • A structure for strengthening the foundation of buildings around the wellhead at the shield end
  • A structure for strengthening the foundation of buildings around the wellhead at the shield end
  • A structure for strengthening the foundation of buildings around the wellhead at the shield end

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Embodiment Construction

[0028] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0029] refer to Figure 1-7 , a structure for strengthening the foundation of buildings around the wellhead at the end of the shield, including a pipeline 3 inside the wellhead foundation 1, a concrete pouring layer 2 is fixed between the wellhead foundation 1 and the pipeline 3, and the concrete pouring layer 2 is close to the side of the pipeline 3 A plurality of fixing mechanisms are installed on the side wall, and the concrete pouring layer 2 is fixed and protected by the fixing mechanisms to prevent the concrete pouring layer 2 from deforming and collapsing.

[0030] Each fixing mechanism comprises an L-shaped tube 14 and an L-shaped bar 4 inserted inside the L-shaped tube 14, and the outer wall of each L-shaped bar 4 and L-shaped tube 14 is welded to the outer wall of the pipeline 3, and the L-shaped bar 4 is inserted with a first fixing screw 13,...

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Abstract

The invention discloses a shield end wellhead surrounding building foundation reinforcement structure, comprising a pipeline inside a wellhead foundation, wherein a concrete pouring layer is fixed between the wellhead foundation and the pipeline and a stuffing layer made from extruded polystyrene boards is arranged between the concrete pouring layer and the pipeline. The structure has the advantages that expansion after pouring of the concrete pouring layer is prevented through the arrangement of a buffer layer; the inner wall of the wellhead foundation is protected by the concrete pouring layer so that the wellhead foundation is prevented from tilting or cracking; fixing structures and the pipeline are arranged to protect the concrete pouring layer to prevent the same from collapsing, thereby keeping the overall structure stable, protecting the wellhead foundation, and preventing the foundation from tilting or cracking to affect people's life and buildings.

Description

technical field [0001] The invention relates to the technical field of foundation reinforcement, in particular to a foundation reinforcement structure for buildings around the wellhead of a shield tunnel end. Background technique [0002] The shield method is a fully mechanized construction method in the underground excavation method. It propels the shield machine in the ground, and supports the surrounding rock through the shield casing and segments to prevent collapse into the tunnel. The shield machine is a special equipment with a shield, and the tail has been installed. The lining block is used as a fulcrum to advance forward, and the cutter head is used to cut the soil body, and at the same time, the soil is discharged and the prefabricated concrete lining block behind is assembled. There are mechanical and hydraulic types of ballasting methods for shield machine excavation, and hydraulic type is the majority. The hydraulic shield has a sealed chamber filled with bent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/00E21D9/00E21D9/06
CPCE02D3/00E21D9/001E21D9/06
Inventor 李广军王兵
Owner 广东雄桥建设集团有限公司
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