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Prefabricated ultra-deep foundation pit ramp system and its construction method

A prefabricated, deep foundation pit technology, applied in infrastructure engineering, excavation, on-site preparation of building components, etc., can solve the problems of enlarging the narrow and long foundation pit, increasing the cost of the support system, etc., and achieve the effect of reducing costs.

Active Publication Date: 2022-03-22
CHINA FIRST METALLURGICAL GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ramp structure needs to be designed at the same time as the foundation pit support system, which increases the cost of the support system and increases the difficulty of on-site construction. It is not suitable for deep and narrow foundation pits

Method used

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  • Prefabricated ultra-deep foundation pit ramp system and its construction method
  • Prefabricated ultra-deep foundation pit ramp system and its construction method
  • Prefabricated ultra-deep foundation pit ramp system and its construction method

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032]As shown in the figure, the prefabricated ultra-deep foundation pit ramp system includes a ramp structure and a vertical support structure; the ramp structure includes a primary ramp 1, a transition platform 2, and a secondary ramp 3; the vertical support structure includes Four concrete-filled steel pipe columns 4, supporting beams 5, column piles 6 and several supporting trusses 7; The rod-type jack propulsion system is used to control the lifting of the transition platform 1, thereby adjusting the slope of the ramp structure; the support truss 7 is used as the support structure of the transition platform 2, and a panel is set on the top surface of the support truss 7 for vehicles to drive; the first grade slope Road 1 is composed of Bailey beam 1.1, steel backing plate 1.2, waterproof material, protective material, prefabrica...

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Abstract

The invention discloses an assembled ultra-deep foundation pit ramp system and a construction method thereof. The system includes ramp structures and vertical support structures. Among them, the ramp structure is composed of the first-level ramp and the second-level ramp connected to the transition platform through rollers and slideways, the first-level ramp and the support beam are connected through pin shafts, and the second-level ramp and the friction plate are connected through rollers and slideways. Connection; the vertical support structure is composed of concrete-filled steel tube columns, stabilizing braces, tie rod jacks, supporting trusses, control lines, jack control boxes, and supporting flanges; the four concrete-filled steel tube columns are fixed by supporting trusses and stabilizing braces, and A rod-type jack propulsion system is set in the support truss to control the transition platform up and down, thereby adjusting the slope of the ramp. The system and method of the present invention avoid problems such as drainage and anti-skid of earthwork slopes in foundation pits, affecting vehicle excavation safety and efficiency, construction progress, and the like, and reduce the cost of slope measures.

Description

technical field [0001] The invention relates to the technical field of underground space construction, in particular to an assembled ultra-deep foundation pit ramp system and a construction method thereof. Background technique [0002] The ramp structure of the foundation pit is used for the transportation of earthwork, material transportation and other transportation up and down the foundation pit in the foundation pit project. It is the main measure to improve the construction efficiency of the foundation pit and underground space, reduce the cost of construction measures, and ensure the safety of construction. For engineering projects with a large foundation pit area, the original soil layer or replacement soil layer can be used in the foundation pit project for grading to achieve transportation inside and outside the pit. The application number "201820785528.8" discloses a deep foundation pit slope The road structure includes the ramp body, the guardrails on both sides o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G27/00E02D17/02
CPCE04G27/00E02D17/02
Inventor 龚俊徐攀陈大为王艳龙王佳源
Owner CHINA FIRST METALLURGICAL GROUP
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