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A construction method of a superimposed wall system with cover and excavation upside down

A cover-excavation and construction method technology, which is applied to artificial islands, water conservancy projects, infrastructure projects, etc., can solve the problems of easy water leakage, complicated construction technology, and difficult guarantee of construction quality, so as to save the construction period and increase the effective area , Improve construction efficiency and construction quality

Active Publication Date: 2020-07-03
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention belongs to the rail transit equipment industry, which solves the defects of complex construction technology, difficult construction quality assurance and easy water leakage in the construction of the existing composite wall in the construction of the existing subway station, and further enhances the integrity and bearing capacity of the composite wall and seismic performance, the construction process is safe and reliable

Method used

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  • A construction method of a superimposed wall system with cover and excavation upside down
  • A construction method of a superimposed wall system with cover and excavation upside down
  • A construction method of a superimposed wall system with cover and excavation upside down

Examples

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Effect test

Embodiment 1

[0030] see Figure 1-2 , a construction method of a cover-excavation composite wall system comprising the following steps:

[0031] a. Construction of underground continuous maintenance wall 1: Set up and process the steel bars at the joints between the continuous wall and the roof, middle plate and bottom plate in the underground continuous maintenance wall 1, and reserve a plurality of steel bar joint structures T that protrude outward alternately. Forming an integral underground continuous maintenance wall reinforcement cage; temporarily covering the reinforcement joint structure T, pouring concrete after lowering the reinforcement cage to form an underground continuous maintenance wall 1 with a connection structure;

[0032] b. Construction of the roof 2 and the lower side wall 5 of the roof: Excavate the foundation pit of the roof and the groove of the lower side wall of the roof, chisel the surface of the concrete near the joint structure T of the continuous wall and the...

Embodiment 2

[0044] see Figure 1-2 , a construction method of a cover-excavation composite wall system comprising the following steps:

[0045] a. Construction of underground continuous maintenance wall 1: Set up and process the steel bars at the joints between the continuous wall and the roof, middle plate and bottom plate in the underground continuous maintenance wall 1, and reserve a plurality of steel bar joint structures T that protrude outward alternately. Forming an integral underground continuous maintenance wall reinforcement cage; temporarily covering the reinforcement joint structure T, pouring concrete after lowering the reinforcement cage to form an underground continuous maintenance wall 1 with a connection structure;

[0046] b. Construction of the roof 2 and the lower side wall 5 of the roof: Excavate the foundation pit of the roof and the groove of the lower side wall of the roof, chisel the surface of the concrete near the joint structure T of the continuous wall and the...

Embodiment 3

[0065] see Figure 1-2 , a construction method of a cover-excavation composite wall system comprising the following steps:

[0066] a. Construction of underground continuous maintenance wall 1: Set up and process the steel bars at the joints between the continuous wall and the roof, middle plate and bottom plate in the underground continuous maintenance wall 1, and reserve a plurality of steel bar joint structures T that protrude outward alternately. Forming an integral underground continuous maintenance wall reinforcement cage; temporarily covering the reinforcement joint structure T, pouring concrete after lowering the reinforcement cage to form an underground continuous maintenance wall 1 with a connection structure;

[0067] b. Construction of the roof 2 and the lower side wall 5 of the roof: Excavate the foundation pit of the roof and the groove of the lower side wall of the roof, chisel the surface of the concrete near the joint structure T of the continuous wall and the...

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Abstract

The invention discloses a construction method of a cover and excavation top-down superimposed wall system. The construction method includes the following steps that a, an underground diaphragmmaintenance wall (1) is constructed; b, a roof (2) and a wall (5) under the roof are constructed; c, a mid-plate (3), a wall (6) on the mid-plate and awall (7) under the mid-plate are constructed; d, a base plate (4) and a wall (9)on the base plate are constructed; e, a first middle side wall (8) is constructed; and f, a second middle side wall (10) is constructed. The invention belongs to the industry of railway transportation equipment,the problems of complicated construction technology, difficult quality assurance and prone leakage in superimposed wall construction in existing subway station construction are solved, the integrity, bearing capacity and anti-seismic property of a superimposed wall body are further enhanced, and the construction process is safe and reliable.

Description

technical field [0001] The invention belongs to the rail transit equipment industry, and relates to the technical field of underground structure engineering construction, in particular to a construction method of a superimposed wall system with cover-excavation and reverse operation. Background technique [0002] With the continuous development of municipal construction and other infrastructure construction, people pay more and more attention to the development and utilization of underground space. As a result, there are more and more underground construction projects in complex environments, and the difficulty of design and construction is also increasing. . At present, the construction of underground works mostly adopts two methods: forward method or reverse method. Since the construction of the sequential method is subject to many restrictions, mainly referring to the limitation of environmental conditions, if the construction site is a soft foundation or the foundation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045E02D15/02E02D29/16E02D31/02
CPCE02D15/02E02D29/045E02D29/16E02D31/02
Inventor 石欣赵大军刘学波宋伟李文博杨明曹宇
Owner JILIN UNIV
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