Concave-convex type wedge joint for underground continuous wall

A technology of underground diaphragm wall and wedge joint, which is applied in the field of construction, can solve the problems of large impermeability and shear resistance, and achieve the effects of improving shear resistance, convenient operation and easy quality assurance.

Inactive Publication Date: 2006-01-04
上海市特种基础工程设计所 +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the defects of the existing underground wall joints used in the construction of the existing underground diaphragm wall, and provides a joint with good impermeability, high shear resistance, small construction difficulty, convenient operation, easy guarantee of the quality of the underground diaphragm wall, and a short construction period. Short underground diaphragm wall joint and its construction method

Method used

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  • Concave-convex type wedge joint for underground continuous wall
  • Concave-convex type wedge joint for underground continuous wall
  • Concave-convex type wedge joint for underground continuous wall

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and embodiment and applied construction method, the present invention will be further described.

[0013] like Figure 4 As shown, a concave-convex wedge-shaped joint of an underground diaphragm wall is respectively located at the ends of two continuous underground joints. It is characterized in that one joint is concave and the other is convex, and a pair of concave-convex Wedge joints fit together.

[0014] The concave joint has a large opening, the bottom is small, and the depth is equal to the thickness of the convex joint; the convex joint has a small head and a large bottom, and the thickness is equal to the depth of the concave joint.

[0015] A construction method using a concave-convex wedge joint of an underground diaphragm wall, the construction steps of which are as follows:

[0016] (1) Grooving and reserved joint position;

[0017] (2) Clear base to control the thickness of the silt to be less than 10cm and...

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Abstract

The concave-convex type wedged joint for underground continuous wall in the ends of two underground continuous walls has one concave member and one convex member connected through one wedged jointing part. The concave-convex type wedged joint has the features of long seepage length, multiple knee points, high anti-seepage capacity, greatly raised matched anti-shearing capacity, easy construction, etc.

Description

technical field [0001] The invention belongs to the construction field, in particular to an underground diaphragm wall joint used in the construction of an underground diaphragm wall and a construction method thereof. Background technique [0002] In the construction of high-rise buildings, the underground diaphragm wall is not only the enclosure wall for deep foundation pit excavation, but also the outer wall of the structure and bears part of the vertical load. key. [0003] At present, one of the commonly used underground wall joints is a semi-circular arc type (such as figure 1 ), it has the advantages of convenient construction and simple operation. However, the shape of its joint is semicircular, and it is easy to form a "living hinge" on the surface under the action of external force, so that the wall slides on the arc surface, and the shear resistance is relatively poor. The smooth arc surface has no inflection point and water point loss Smal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/16E02D29/02
Inventor 李耀良王卫东袁芬王齐
Owner 上海市特种基础工程设计所
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