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Circular inner support for deep foundation pit in unenclosed condition

A deep foundation pit and conditional technology, which is applied in the direction of foundation structure engineering, excavation, construction, etc., can solve the problems of restricting the application of annular inner support and the inability to use annular inner support, etc., so as to achieve convenient and fast excavation of foundation pit and good force bearing form , low cost effect

Inactive Publication Date: 2010-11-03
WUHAN JINGYE FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Compared with other forms of internal support, annular internal support has many advantages such as fewer internal support rods, convenient and quick foundation pit excavation, low cost, and good force bearing form. However, when one side of the foundation pit is not closed, it cannot be used. Annular inner support, which limits the application of annular inner support, so that the above advantages of annular inner support cannot be brought into play

Method used

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  • Circular inner support for deep foundation pit in unenclosed condition
  • Circular inner support for deep foundation pit in unenclosed condition
  • Circular inner support for deep foundation pit in unenclosed condition

Examples

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Effect test

Embodiment 1

[0013] Embodiment 1: see figure 1 , the present embodiment is a design scheme of the annular inner support under the condition that one side of the deep foundation pit is not closed. The annular inner support includes an inner support ring 1 and a support rod 2. The inner support ring 1 can be a circular support beam or an elliptical support beam, and is located in a deep foundation pit that is not closed on one side. The inner support ring 1 and the three continuous sides 4 of the foundation pit are supported by support rods 2, and an oblique truss 3 is arranged on the unclosed side of the deep foundation pit, and on the continuous sides 4 of the foundation pit on the opposite sides of the unclosed side of the deep foundation pit They are respectively fixed to one end of the oblique truss 3, and the other end of the oblique truss 3 is connected to the inner supporting ring 1 facing the unclosed side of the deep foundation pit.

[0014] The horizontal load transmitted from th...

Embodiment 2

[0015] Example 2: see figure 2 , this embodiment is another design scheme of the annular inner support under the condition that one side of the deep foundation pit is not closed. The annular inner support includes an inner support ring 1 and a support rod 2. The inner support ring 1 can be a circular support beam or an elliptical support beam, and is located in a deep foundation pit that is not closed on one side. The support rod 2 is used between the inner support ring 1 and the three continuous sides 4 of the foundation pit, and the opposite top support 5 is arranged on the unclosed side of the deep foundation pit, and the two ends of the opposite support are respectively fixed on the foundation pit continuous On the limit 4, between the inner support ring 1 and the top pipa support 5, support with the support rod 2, and the support rods form a triangle with each other.

[0016] The horizontal load transmitted from the continuous side 4 on the three sides of the foundation...

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Abstract

The invention discloses a ring-shaped inner support with a deep foundation ditch not enclosed, comprising an inner support ring and a support bar; wherein the inner support ring is arranged in the deep foundation ditch one side of which is not enclosed and the support bar is used for supporting the inner support ring and continuous sides of the foundation ditch. The inner support is characterizedin that an opposite vertex lute support or an oblique truss is arranged at the side of the deep foundation ditch which is not enclosed, thus supporting the inner support ring at the side of the deep foundation ditch which is not enclosed. The inner support can ensure that horizontal deformation of every side of the foundation ditch is controlled within the range permitted by standards and the userange of the ring-shaped inner support is widened, so that the ring-shaped inner support can be used even if one side of the periphery of the foundation ditch is not enclosed and the advantages of fewer ring-shaped inner support, convenient and rapid excavation of the foundation ditch, low cost, good force mode and the like are given full play.

Description

technical field [0001] The invention relates to the fields of civil engineering and municipal engineering, in particular to an annular inner support under the condition that deep foundation pits are not closed. Background technique [0002] The traditional annular inner support requires the periphery of the foundation pit to be closed, so as to ensure that the force transmitted from the vertical support structure to the annular inner support is relatively balanced on the entire ring; at the same time, the vertical support structure around the foundation pit transmits The horizontal load can be balanced by the annular inner support to ensure that the horizontal deformation of each side of the foundation pit is controlled within the range allowed by the code. If one side of the foundation pit is not closed and one side of the foundation pit is not closed, the horizontal load transmitted from the support structure on the other three sides of the foundation pit will cause the an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/02E02D17/04E02D17/20
Inventor 王平
Owner WUHAN JINGYE FOUND ENG
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