Construction method for building a multilayer underground space under existing building group

A technology of underground space and construction method, applied in construction, building maintenance, building construction, etc., can solve problems such as land shortage, achieve the effect of solving land shortage and improving land utilization rate

Pending Publication Date: 2018-05-08
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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Problems solved by technology

[0003] A construction method for adding multi-storey underground space under the existing buildings proposed by the present invention can provide a new solution to the problems of land shortage, improvement of land utilization rate, and development of underground space without demolition of buildings. Solutions

Method used

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Embodiment Construction

[0024] A construction method for adding a multi-storey underground space under an existing building complex proposed by the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] In the first stage, the structural inspection of the existing buildings should be carried out, the quality and reliability of the existing buildings should be demonstrated and the bearing capacity of the old structures should be evaluated, and the original buildings should be reinforced according to the evaluation results to make their structural strength Able to meet the requirements of subsequent construction.

[0026] Phase 2: Please refer to figure 1 , the underpinning pile 2 and the uplift pile 3 are both bored cast-in-situ piles, the underpinning pile 2 can meet the weight of each layer of the main building and the basement, and the pullout force is passed through the uplift pile 3 and the static pressure of th...

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Abstract

The invention discloses a construction method for building a multilayer underground space under an existing building group and is applicable to the development and utilization of the large-scale underground space under the existing building group on a soft-soil foundation. The construction method mainly includes the steps of firstly, detecting and reinforcing existing buildings; secondly, constructing supports and underpinned piles; thirdly, constructing apron pieces and underpinning beams; fourthly, constructing a basement ceiling; fifthly, using a topdown method to construct various basementlayers layer by layer. The construction method has the advantages that the complete and reliable design and construction technology is provided for the design and construction of the large-scale underground space under the existing building group, a new solution is provided for land shortage, land utilization rate is increased, and underground space development can be performed without tearing down the existing building group.

Description

technical field [0001] The invention relates to a method for adding a multi-layer underground space under an existing building group. The method proposed by the invention can provide complete and reliable design and construction technology for the development and utilization of large-scale underground space under the existing building group. Background technique [0002] With the rapid development of my country's economy, population increase and the continuous acceleration of urbanization process, large-scale urbanization construction continues in our country. In the process of urbanization, it is necessary not only to promote the development of urban buildings, but also to intensively utilize the land used for buildings, to alleviate the shortage of land use, to increase the utilization rate of building space, and to focus on long-term sustainable land development and utilization. Addition and reconstruction of multi-storey underground spaces to existing buildings can make ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E02D29/055E02D17/04
CPCE02D17/04E02D29/055E04G23/0266
Inventor 杨泽宇
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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