An assembled horizontal support system for a subway foundation pit and its assembly construction method

A horizontal support and assembled technology, which is applied in the fields of infrastructure engineering, excavation, construction, etc., can solve the problems of low construction efficiency of foundation pit, unguaranteed safety, complex assembly process of foundation pit support, etc., and achieve high construction efficiency and convenience The effect of vertical movement

Active Publication Date: 2019-01-08
CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a subway foundation pit assembled horizontal support system and its assembly construction method, to solve the technical problems of low foundation pit construction efficiency and unguaranteed safety; and to solve the problem of complex foundation pit support assembly process

Method used

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  • An assembled horizontal support system for a subway foundation pit and its assembly construction method
  • An assembled horizontal support system for a subway foundation pit and its assembly construction method
  • An assembled horizontal support system for a subway foundation pit and its assembly construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Example 1 see figure 1 , figure 2 , image 3 As shown, this subway foundation pit assembled horizontal support system includes a horizontal support platform 1 horizontally supported between the foundation pit enclosure structures 5, and the horizontal support platform 1 is evenly spaced in parallel along the length and height directions of the foundation pit It is characterized in that a force transmission mechanism 8 is connected between the horizontal support platform 1 and the foundation pit enclosure structure 5, and the force transmission mechanism 8 is evenly distributed along the side surface of the horizontal support platform.

[0044] see image 3 As shown, the force transmission mechanism 8 is connected to the jack 10 at the end of the horizontal support platform 1, the rotating joint 11 connected to the front end of the jack, the roller bracket 12 hinged on the rotating joint 11, and the roller 9 hinged on the roller bracket 12 .

[0045] The roller brac...

Embodiment 2

[0047] See Example 2 Figure 4 , Figure 5 , Image 6 , Figure 7 As shown, the difference from the first embodiment is that the subway foundation pit assembled horizontal support system also includes a guide rail 3 and a lifting power unit 2; The guide rail 3 is formed by vertical splicing of guide rail units along the height direction of the foundation pit enclosure structure 5; the guide rail 3 is connected with the foundation pit enclosure structure 5 through an adjustable support assembly 4; the lifting power unit 2 It is connected with the horizontal support platform 1 through the unit bracket 6 .

[0048] see Figure 7 As shown, the unit bracket 6 includes a tripod bracket connected to the end of the horizontal support platform 1, an upper bolt support connected to the end of the tripod bracket, and a lower bolt support arranged in parallel below the upper bolt bracket; The latch support and the lower latch support are detachably connected with the reaction hole of...

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Abstract

The invention provides a fabricated horizontal supporting system for a subway foundation pit and a fabricated construction method of the fabricated horizontal supporting system. The fabricated horizontal supporting system comprises horizontal supporting platforms horizontally supported in a foundation pit support structure, wherein the horizontal supporting platforms are parallelly and uniformly distributed at intervals in the length and height directions of a foundation pit; and force transferring mechanisms are connected between the horizontal supporting platforms and the foundation pit support structure and uniformly distributed at intervals along the side surfaces of the horizontal supporting platforms. The force transferring mechanisms are utilized to realize effective fabricated connection between the horizontal supporting platforms and the foundation pit support structure and are arranged between the horizontal supporting platforms and the foundation pit support structure, so that the force transferring mechanisms can drive the horizontal supporting platforms to vertically move along the foundation pit support structure under the condition of bearing horizontal supporting forces, accordingly, quick vertical movement of multiple layers of the horizontal supporting platforms is facilitated, all-layer adjustment in the fabricating process is guaranteed, the construction efficiency is high, and the fabricated horizontal supporting system is safe and effective.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a subway foundation pit construction system and a construction method thereof. Background technique [0002] At present, the main support system used for the subway foundation pit is mainly reinforced concrete and steel pipe support, especially the steel pipe support, the horizontal spacing is often not more than 3m. Due to the narrow, long and rectangular shape of the subway station building, the earthwork excavation of the subway foundation pit is generally carried out by the method of step-back excavation and relay. Due to the close spacing of the horizontal supports and the small construction surface, the earth excavation machinery often uses excavation equipment with small bucket capacity, and the earth excavation is completed by means of step relay, which greatly reduces the efficiency of earth excavation; on the other hand, When the steel pipe supports are hoisted ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 王辉慕冬冬周环宇巴鑫魏倩吴全龙
Owner CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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