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Construction method of elevator shaft sunken foundation

A construction method and elevator shaft technology, applied in infrastructure engineering, construction, etc., can solve problems such as low connection strength, and achieve the effects of convenient installation, short construction time and firm connection

Inactive Publication Date: 2020-05-08
周兆弟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned prefabricated prefabricated foundation components and construction methods of the existing building plus an elevator, the connection strength between the raft foundation and the concrete shear wall is not high

Method used

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  • Construction method of elevator shaft sunken foundation
  • Construction method of elevator shaft sunken foundation
  • Construction method of elevator shaft sunken foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1 to Figure 3 As shown, a construction method for the sinking foundation of an elevator shaft comprises the following steps:

[0038] Pile sinking step: sink the prefabricated pile 22 pre-embedded with the vertical stress rib 221 into the soil to a predetermined depth;

[0039] Bottom plate placement step: put the bottom plate 2 down to the top of the prefabricated pile 22, and use a mechanical connection assembly to connect the vertical stress rib 221 of the prefabricated pile 22 and the second vertical stress tendon 21 of the bottom plate 2;

[0040] Steps for laying the foundation frame: erect the foundation frame 1 on the bottom plate 2, and connect the first vertical stress rib 11 of the foundation frame body 1 and the second vertical stress rib 21 of the bottom plate 2 by using a mechanical connection assembly.

[0041] Such as image 3 with Figure 4 As shown, in the step of laying the bottom plate, at least part of the second vertical rib 21 i...

Embodiment 2

[0056] The same parts as those in Embodiment 1 are given the same reference numerals, and the same text descriptions are omitted.

[0057] With respect to Embodiment 1, this embodiment provides another structure similar to the structure of the upper connection assembly and the lower connection assembly, such as Image 6 As shown, in the step of laying the basic frame, the elastic clip 32 is arranged in the first connecting nut 31. The elastic clip 32 is C-shaped. When the inserting rod 42 is inserted into the first connecting nut 31, the inserting rod 42 penetrates The elastic clip 32, the elastic clip 32 clamps the end face of the plug joint 422 of the insertion rod 42, prevents the insertion rod 42 from withdrawing from the first connecting nut 31, and at the same time, tightens the fastening nut 421, thereby realizing the connection between the upper connection assembly and the lower connection assembly. connected as one. Preferably, the elastic clip 32 may be a snap sprin...

Embodiment 3

[0059] With respect to Embodiment 1, this embodiment provides another structure similar to the structure of the upper connection assembly and the lower connection assembly, such as Figure 7 As shown, in the installation step of the basic frame, the elastic clip 32 is screwed into the first connecting nut 31. When the inserting rod 42 is inserted into the first connecting nut 31, the inserting rod 42 passes through the elastic clip 32, elastically The clip 32 clamps the inserting rod 42 to prevent the inserting rod 42 from withdrawing from the first connecting nut 31, and at the same time, tighten the fastening nut 421, so as to realize the connection of the upper connecting component and the lower connecting component. Preferably, the elastic clip 32 can be an elastic collet.

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PUM

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Abstract

The method provides a construction method of an elevator shaft sunken foundation. The construction method comprises the following steps of a pile sinking step, specifically, sinking a precast pile with an embedded vertical stress rib into a soil body to a preset depth; a bottom plate placing step, specifically, placing a bottom plate on the top of the precast pile, and connecting the vertical stress rib of the precast pile with a second vertical stress rib of the bottom plate by adopting a mechanical connecting assembly; and a foundation frame body placing step, specifically, erecting a foundation frame body on the bottom plate, and connecting a first vertical stress rib of the foundation frame body with the second vertical stress rib of the bottom plate by adopting a mechanical connectingassembly. According to the construction method of the elevator shaft sunken foundation, it can be guaranteed that the foundation frame body and the bottom plate are high in strength, high in rigidity, and easy and convenient to connect, during transportation and installation, the labor input can be effectively reduced, the construction period is shortened, the construction cost is reduced, the construction quality can be guaranteed, and the connecting strength between the bottom plate and the foundation frame body is high.

Description

technical field [0001] The invention relates to the technical field of elevator shaft construction, in particular to a construction method for an elevator shaft sinking foundation. Background technique [0002] At present, there are many low-rise or multi-storey residential buildings with a long history in the residential area, in which many elderly people live, and these low-rise or multi-storey residential buildings are not provided with elevators. For the elderly, their daily life is very inconvenient. To advance and solve this problem, major cities have begun to install elevators to these low-rise or multi-storey residential buildings. During the construction of the existing sunken foundation with an elevator, the foundation pit is excavated on site, the cushion is poured, the bottom plate and the foundation frame formwork are supported and installed, the rigid frame is arranged and fixed, and the concrete is poured. Small size, low construction efficiency, and disturb ...

Claims

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Application Information

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IPC IPC(8): E02D27/12E02D27/32
CPCE02D27/12E02D27/32
Inventor 周兆弟
Owner 周兆弟