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Design construction method of flexible compound fabricated recoverable rectangular working well supporting structure

A technology of supporting structure and construction method, applied in the direction of foundation structure engineering, excavation, construction, etc., to achieve the effect of comprehensive economic benefits, safety and reliability in the use stage of foundation pit, and advanced technology

Inactive Publication Date: 2018-12-21
南方工程检测修复技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no relevant reports on the excavation support structure combined with polymer grouting in rectangular working wells in China.

Method used

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  • Design construction method of flexible compound fabricated recoverable rectangular working well supporting structure
  • Design construction method of flexible compound fabricated recoverable rectangular working well supporting structure
  • Design construction method of flexible compound fabricated recoverable rectangular working well supporting structure

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with accompanying drawing.

[0041] A standardized design and construction method for a flexible composite assembled retrievable rectangular working well support structure, characterized in that, in the excavation and support design of the rectangular working well, the standardized design concept of the support structure is adopted for the first time, and polymer grouting is introduced Technology and prefabricated recyclable technology, with the help of rapid expansion, rapid cementation and solidification and water-stopping characteristics of polymer materials, the creep of the side wall soil of rectangular working wells is controlled, which is more suitable for rectangular working wells in municipal engineering Excavation required. After the calculation and design work is completed according to the relevant data, the construction of the support structure will be carried out. The construction process...

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Abstract

The invention relates to a standardized design construction method of a flexible compound fabricated recoverable rectangular working well supporting structure. The method comprises the following stepsthat (1) construction of minisize supporting piles is carried out; (2) construction of pile top crown beams; (3) a rectangular working well is excavated, panels and waist beams are installed, and high polymers are poured to side walls for sealing; (4) excavation is carried out layer by layer sequentially in the vertical direction, and the step (3) is carried out repeatedly till the design depth is met, that is, construction of the rectangular working well supporting structure is completed accordingly; and (5) after the supporting structure fulfills the usage function, the supporting structurerecovery work can be carried out as the backfilling work is started. Through standardized design construction of the established supporting structure system, one supporting structure can meet the construction requirement of most rectangular working wells in a region, the advantages of safety, reliability, quick and convenient construction, advanced technologies, high recoverability, superior economic indicators and the like are achieved, and the application and development prospects are considerable.

Description

technical field [0001] The invention belongs to the technical field of excavation and support of rectangular working wells in civil engineering, water conservancy, mining, municipal and other infrastructure facilities, and specifically relates to the flexible composite assembled recyclable rectangular working well supports that partially require excavation and support of rectangular working wells in the above fields Standardized design and construction methods for protective structures. 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 utilization and mining of mineral resources, especially in the construction and maintenance of municipal pipe networks, it is often necessary to carry out excavation and support of rectangular working wells. Withstands leaks or groundwater problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 王复明方宏远潘艳辉赵鹏
Owner 南方工程检测修复技术研究院
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