Frost heaving device of layered telescopic detecting soil and detecting method thereof

A telescopic and frost-heave technology, which is applied in the directions of measuring devices, analytical materials, and material thermal analysis, can solve the problems of difficult quality control of infrastructure construction in permafrost areas, difficulty in monitoring frost heave deformation of local permafrost layers, and geological conditions. Complicated problems, to achieve the effect of flexible and unrestricted landfill direction, flexible and unrestricted landfill depth, and low monitoring difficulty

Active Publication Date: 2019-05-21
凌贤长
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a layered telescopic soil frost heaving device and its detection method to solve the problem of local frozen soil due to the complex geological conditions of the construction site and the research needs of the local soil frost heaving and thawing process in the laboratory. Frost heaving and deformation monitoring of layers is difficult and has poor accuracy, which leads to the difficulty in guaranteeing the quality control of infrastructure construction in permafrost areas

Method used

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  • Frost heaving device of layered telescopic detecting soil and detecting method thereof
  • Frost heaving device of layered telescopic detecting soil and detecting method thereof
  • Frost heaving device of layered telescopic detecting soil and detecting method thereof

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specific Embodiment approach 1

[0039] Specific implementation mode one: combine figure 1 , figure 2 and image 3 Describe this embodiment. This embodiment includes a chassis 1 and a telescopic measuring tube. The telescopic measuring tube includes a plurality of sleeve-type monomers 2. The multiple sleeve-type monomers 2 are sequentially arranged on the chassis 1 from bottom to top. The monomer 2 includes a pipe body 2-1, an anchor plate 2-2 and a displacement sensor 2-3, the anchor plate 2-2 is set outside the pipe body 2-1, and the displacement sensor 2-3 is set on the pipe body 2-1 On the inner wall, the top end of the pipe body 2-1 is processed with a boss 2-4, and the bottom end of the pipe body 2-1 is processed with a groove 2-5, and the pipe body 2-1 of a casing type monomer 2 passes through the boss respectively. 2-4 and the groove 2-5 are slidingly matched with the two adjacent sleeve type monomers 2 .

[0040] Further, the tube body 2-1 of a sleeve-type monomer 2 slides with the groove 2-5 in ...

specific Embodiment approach 2

[0049] Embodiment 2: This embodiment is a further limitation of Embodiment 1. The displacement sensors 2-3 are linear displacement sensors, and there are many types to choose from, such as rod-type linear displacement sensors or slider-type linear displacement sensors. The displacement sensor 2-3 is an existing product, and its use process is the same as that of the existing product.

specific Embodiment approach 3

[0050] Specific implementation mode three: combination figure 1 , figure 2 , image 3 and Figure 4 Describe this implementation mode, this implementation mode includes the following content:

[0051] Determine the depth of the permafrost layer in the test area according to the geological survey report, determine the number of sleeve-type monomers 2 in the frost heave device according to the depth of the permafrost layer, install the frost heave device in the test area, and obtain different periods of time through the frost heave device Frost heave data of the frost heave layer, according to the frost heave data fed back by the frost heave device, the frost heave deformation of the frozen soil in the test area is obtained.

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Abstract

The frost heaving device of layered telescopic detecting soil and a detecting method thereof are disclosed. In cold area engineering construction, due to the complicated geological condition of a construction site, the monitoring of frozen soil frost heaving deformation is difficult, and frost heaving data at different depths in one area is difficult to acquire at the same time. In the frost heaving device, a plurality of casing-pipe-type monomers are successively arranged on a chassis from bottom to top, an anchor plate is arranged outside a tube body, a displacement sensor is arranged on theinner wall of the tube body, the top end of the tube body is processed with a boss, the bottom end of the tube body is processed with a groove, and the tube body of one casing-pipe-type monomer is slidably cooperated with the two adjacent casing-pipe-type monomers through the boss and the groove. According to the frozen soil type in a test area, the number of measuring points in the test area andthe distribution position of each measuring point are determined, the frost heaving amount data of the frost heaving layer of each measuring point in different time periods is obtained through the frost heaving device, and according to frost heaving amount data gathering fed back by each measuring point, a frozen soil frost heaving deformation condition in the test area is obtained. The device and the method are used for the monitoring of the frozen soil frost heaving amount in a vertical or horizontal direction.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a layered telescopic soil frost heaving device and a detection method thereof. Background technique [0002] During the freezing process, the amount of frost heave caused by water migration is far greater than the volume expansion caused by in-situ freezing of pore water. Frost heave and thawing in the permafrost area cause great harm to roads and buildings, such as cracks and subsidence , Structural breaks, etc. More and more transportation infrastructures in our country, such as highways and high-speed railways, will be built in permafrost areas. Before the construction of various projects, it is necessary to evaluate the frost heaving characteristics of the soil in the area where the project is located, so as to take corresponding measures to ensure Safety and reliability of engineering structures. [0003] Furthermore, the freezing method technology us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/14
Inventor 凌贤长杨英姿徐定杰凌瑜泽凌润泽
Owner 凌贤长
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