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Design and construction method of a flexible compound ladder-shaped deep circular shaft assembled recyclable support structure

A technology of support structure and construction method, which is applied in shaft equipment, infrastructure engineering, well sinking, etc., to achieve the effects of easy recycling and reuse, easy installation, and high bearing capacity under pressure

Active Publication Date: 2021-02-05
SAFEKEY ENG TECHZHENGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no relevant report on a flexible composite ladder-shaped deep circular shaft assembled recyclable support structure in China.

Method used

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  • Design and construction method of a flexible compound ladder-shaped deep circular shaft assembled recyclable support structure
  • Design and construction method of a flexible compound ladder-shaped deep circular shaft assembled recyclable support structure
  • Design and construction method of a flexible compound ladder-shaped deep circular shaft assembled recyclable support structure

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with accompanying drawing.

[0049] A method for the design and construction of a flexible composite ladder-like assembled recyclable support structure for deep circular shafts. The idea of ​​mechanical precision manufacturing and on-site assembly standardized production, after completing the design work according to relevant information, the factory prefabricated and processed the corresponding support components, and then combined with polymer grouting technology to carry out the assembly construction of the site support structure; Backfilling in the foundation pit Afterwards, the recovery support structure can be removed for reuse and standardized design and construction.

[0050] The construction process specifically includes the following steps:

[0051] (1) The construction of the first layer of circular support piles, the specific steps are as follows:

[0052] (1) Processing of ring-shaped su...

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Abstract

The invention relates to a design construction method of a fabricated recyclable support structure of a flexible composite ladder-shaped deep circular vertical shaft. The design construction method comprises the following steps that (1) a first-layer annular supporting pile is constructed; (2) a first-layer pile top crown beam is mounted; (3) earthwork is excavated in layered and sectioned modes,and a panel and waist beams are mounted; (4) a second-layer annular supporting pile is constructed; (5) a second-layer crown beam and lower waist beam supporting system is mounted; and (6) the steps (3), (4) and (5) are repeated till the design base elevation is reached, and then the support structure is constructed. The support structure constructed by the design construction method has the multiple advantages of being safe and reliable, quick to construct, advanced in technology, large in excavation support depth, capable of being recycled and reused, superior in economic and environmental protection index and the like, a new method with the advantages of safety, reliability, efficient recycle and reuse, and superior economic and environmental protection indexes is provided for construction of projects such as underground space utilization, and the development and application prospects are considerable.

Description

technical field [0001] The invention belongs to the field of excavation and support construction of underground infrastructure such as civil engineering, water conservancy, and municipal facilities, and in particular relates to a design and construction method for a flexible composite ladder-shaped deep circular shaft assembly type recyclable support structure. Background technique [0002] Since the founding of New China, my country's civil engineering, water conservancy, mining, municipal and other infrastructure construction have achieved world-renowned achievements. In the process of underground space development and utilization, mining of mineral resources, etc., when faced with complex geological conditions, it is often necessary to take slope support or foundation pit support measures to ensure the safety and stability of the underground construction process and the surrounding environment during this period. With the development of geotechnical engineering technology...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D1/08E21D5/11E21D5/12E02D17/08E02D5/04E02D11/00E02D17/18
CPCE02D5/04E02D11/00E02D17/08E02D17/18E21D1/08E21D5/11E21D5/12
Inventor 王复明方宏远潘艳辉赵鹏
Owner SAFEKEY ENG TECHZHENGZHOU
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