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Internal and external support structure of building foundation pit and construction method

A technology of support structure and construction method, applied in basic structure engineering, construction, excavation, etc., can solve the problems of high connection requirements of support components, complex internal support structure type, complicated construction, etc., to avoid adverse effects, save raw materials, reduce The effect of the amount of anchor rod

Active Publication Date: 2017-12-15
ZHONGHENG CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the deep and large development of the foundation pit, the type of internal support structure is complicated, the requirements for support components and their connections are high, the cost is high, the construction period is long, and the construction is complicated
Cause many difficulties in the design and construction of the inner support

Method used

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  • Internal and external support structure of building foundation pit and construction method
  • Internal and external support structure of building foundation pit and construction method

Examples

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Embodiment Construction

[0027] The embodiments will be described in detail below in conjunction with the accompanying drawings.

[0028] See attached figure 1 And attached figure 2 , an internal and external support structure of a building foundation pit, comprising an anchor rod / cable 1, a spherical steering support 2, an upper pressing rod 3, a lower pressing rod 4, a supporting pile 5, an inner supporting structure 6 and an inner and outer supporting connecting rod 7, The anchor rod / cable 1 is a rock-soil anchor rod / cable with a large dip angle of 30°~60°. One end of the anchor rod / cable 1 is anchored in a stable rock-soil body, and the other end goes deep into the foundation pit and connects with the spherical steering support 2 The support pile 5 is provided with a crown beam 8 and a waist beam 9, one end of the upper pressure rod 3 is connected with the spherical steering support 2, and the other end is connected with the crown of the support pile 5. The beam 8 is connected; one end of the l...

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Abstract

The invention provides an internal and external support structure of a building foundation pit and a construction method. The internal and external support structure comprises an anchor rod / cable, a spherical rotary support seat, an upper pressing rod, a lower pressing rod, a support pile and an internal support structure and external support structure connecting rod, wherein the anchor rod / cable is a rock-soil anchor rod / cable with a large inclination angle of 30 degrees to 60 degrees, one end of the anchor rod / cable 1 is anchored in a stable rock-soil body, and the other end of the anchor rod / cable extends into the foundation pit and is connected with the spherical rotary support seat; a top beam and a middle beam are arranged on the support pile, one end of the upper pressing rod is connected with the spherical rotary support seat, and the other end of the upper pressing rod is connected with the top beam; one end of the lower pressing rod is connected with the spherical rotary support seat, and the other end of the lower pressing rod is connected with the middle beam; and the internal and external support connecting rod is connected with an internal support structure. The invention discloses the internal and external support structure of the building foundation pit and the construction method. By adopting the anchor rod / cable structure with the large inclination angle, the horizontal length of the anchor rod / cable and the disturbance range of the anchor rod / cable to a soil layer is reduced, the damage of the anchor rod / cable to surrounding buildings and roads is avoided, and the environment is protected.

Description

technical field [0001] The invention belongs to the technical field of building foundation pit supporting structures, and in particular relates to a building foundation pit internal and external support structure and a construction method. Background technique [0002] In the support of building foundation pits, it is usually divided into anchor rods (cables), anchor-stayed support structures and support structures composed of reinforced concrete or steel members set in the foundation pit. [0003] Anchor rods (cables) are usually connected to supporting structural members at one end and anchored in a stable rock and soil body at the other end. Tension rods, because the anchor rods penetrate far into the rock and soil, often have different degrees of impact and damage on houses, roads, and various municipal pipelines within the scope of influence, so they are often restricted in use. [0004] The internal support is a supporting structure mainly composed of soil retaining c...

Claims

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Application Information

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IPC IPC(8): E02D17/04E02D5/74
CPCE02D5/74E02D17/04
Inventor 徐升才熊信福黄辉
Owner ZHONGHENG CONSTR GRP
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