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Hoop support form for in-situ protection of existing building in underground space development

A technology for existing buildings and underground spaces, which is applied in the repair and excavation of buildings and infrastructure to achieve the effects of strong operability, simple technical structure and convenient construction.

Inactive Publication Date: 2016-02-03
浙江华展工程研究设计院有限公司
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Problems solved by technology

However, for many buildings that still have use value and even have the value of preserving historic

Method used

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  • Hoop support form for in-situ protection of existing building in underground space development
  • Hoop support form for in-situ protection of existing building in underground space development
  • Hoop support form for in-situ protection of existing building in underground space development

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Example Embodiment

[0011] in figure 1 , figure 2 In the example shown, according to the protection requirements for the existing building (1) in the development of underground space, the development depth of the underground space around the existing building (1) and the engineering geological conditions, the retaining wall ( 2) Reinforce the bottom of the pit (3), and design the supporting structure with the hoop (4) to meet the deformation control requirements and stability requirements of the island-shaped limited soil under the existing buildings (1). Construct the retaining wall (2) and pit bottom reinforcement (3) in accordance with the design results of the ring support structure. During the construction of the retaining wall (2), pay attention to isolating the existing building (1) to prevent mud or cement slurry from affecting Erosion and destruction of existing buildings (1). Set up the pile top crown beam (5), excavate the soil in layers, symmetrically and evenly, set up rings (4), han...

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Abstract

Provided is a hoop support form for in-situ protection of an existing building in underground space development. In the underground space development process, soil below the existing building is reserved as a cylinder-shaped or elliptic-cylinder-shaped island, and the support form of a retaining wall and a plurality of hoops is adopted around the island. The form of an underground diaphragm wall or a soil mixing wall (SMW) pile or a combination of a common support pile and a waterproof curtain or the like can be adopted by the retaining wall, and therefore the purpose of controlling soil displacement and water and soil loss is achieved. The hoop systems are arranged around the cylinder-shaped or elliptic-cylinder-shaped island layer by layer, so that the integrality of the retaining wall around the island is improved, and the deformation of the retaining wall is restrained. Earth around the island is evenly and symmetrically excavated, and after earth excavation is completed and a proposed underground structure is completed, earth backfilling and compaction are carried out. The technology has the characteristics that the structure is simple, construction is convenient and operability is high.

Description

technical field [0001] The invention relates to a technology for in-situ protection of existing buildings during the development of underground space, specifically, in-situ protection of existing buildings through a hoop support structure during the development of underground space . Background technique [0002] Under the background of the rapid development of urban construction in our country, the comprehensive development and utilization of underground space is unfolding at an unprecedented speed. During the development of underground space, it is inevitable to encounter the situation that there are various existing buildings on it. At present, there are two common solutions to the contradiction between underground space development and existing buildings, one is to demolish the existing buildings, and the other is to relocate the existing buildings. However, for many buildings that still have use value and even have the value of preserving historical relics, if they ar...

Claims

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Application Information

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IPC IPC(8): E02D37/00E02D17/02E02D17/04
Inventor 吴才德沈俊杰龚迪快赵豫鄂曾婕
Owner 浙江华展工程研究设计院有限公司
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