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Freezing method of vertical hole treelike freezing wall

A freezing method and a technology of freezing walls, which are applied in the direction of basic structure engineering, construction, etc., can solve the problems of waste and inconvenience of horizontally freezing the site, and achieve the effect of solving the inconvenience of the site

Inactive Publication Date: 2020-01-31
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a vertical hole tree-like freezing wall freezing method, which solves the inconvenience of the horizontal freezing site and the unnecessary waste caused by the vertical freezing

Method used

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  • Freezing method of vertical hole treelike freezing wall
  • Freezing method of vertical hole treelike freezing wall

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Embodiment Construction

[0026] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0027] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to a freezing method of a vertical hole treelike freezing wall, and belongs to the technical field of freezing reinforcement. The freezing method comprises the following steps ofS1, drilling a through-layer drill to form a vertical hole on to-be-frozen ground; S2, installing a vertical freezing pipe reserved with a turning hole in the vertical hole; S3, carrying out self-advancing drilling to form a primary treelike branch drill hole along the direction of a required frozen layer through the turning hole reserved in the vertical freezing pipe at a required frozen layer section; S4, installing a primary treelike freezing pipe in the primary treelike branch drill hole; S5, carrying out lf-advancing drilling to form secondary treelike branch drill hole along the direction of the required frozen layer through a turning hole reserved in the primary treelike freezing pipeline; S6, installing a secondary treelike freezing pipe in the secondary treelike branch drill hole; S7, after the installation of the freezing pipes, installing a temperature insulation material according to the freezing requirement; and S8, checking pipeline installation and sealing conditions, and carrying out freezing construction and freezing temperature monitoring. The freezing method of the vertical hole treelike freezing wall realizes quick freezing and reduces unnecessary economic loss.

Description

technical field [0001] The invention belongs to the technical field of freezing reinforcement, and relates to a method for freezing tree-like frozen walls with vertical holes. Background technique [0002] At present, in the process of developing underground space and resources, the artificial freezing method is widely used as an auxiliary construction method in the field of reinforcement. The artificial freezing method is a foundation treatment method that uses artificial refrigeration technology to freeze the water in the formation to form frozen soil, isolate the connection between groundwater and underground engineering, and carry out underground engineering construction under the protection of frozen walls. However, due to the limitation of the construction site, only one of vertical freezing or horizontal freezing can be selected as the reinforcement method, but both have their unique advantages and disadvantages. In addition, the freezing method is relatively expensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/14
CPCE02D19/14
Inventor 赵智辉杨金虎张二锋吴健杨靖陈贵川余智赵哲
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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