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Frost heaving monomer of flexible non-contact type detection soil, detection device and detection method thereof

A non-contact, detection device technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as difficulty in ensuring the quality control of infrastructure construction, difficulty in monitoring frost heave deformation of permafrost, and complex geological conditions, etc., to achieve filling The burial direction is flexible and unrestricted, the data acquisition is effective and reliable, and the monitoring difficulty is low

Active Publication Date: 2019-05-17
凌贤长
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a flexible non-contact detection of soil frost heave monomer, detection device and detection method to solve the needs of the complex geological conditions of the construction site and the research of local soil frost heave and thawing process in the laboratory , Frost heave deformation monitoring of permafrost is difficult and poor in accuracy, which leads to the problem that the quality control of infrastructure construction in permafrost areas is difficult to guarantee

Method used

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  • Frost heaving monomer of flexible non-contact type detection soil, detection device and detection method thereof
  • Frost heaving monomer of flexible non-contact type detection soil, detection device and detection method thereof
  • Frost heaving monomer of flexible non-contact type detection soil, detection device and detection method thereof

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specific Embodiment approach 1

[0031] Specific implementation mode one: combine figure 1 , figure 2 , image 3 and Figure 4 Describe this embodiment. This embodiment includes a lower anchor plate 1, a casing 2, an upper anchor plate 3, a displacement sensor 4, a reference plate 5, and a support rod 6. The upper anchor plate 3 and the lower anchor plate 1 are arranged in sequence from top to bottom. , the casing 2 is set between the upper anchor plate 3 and the lower anchor plate 1, the support rod 6 is vertically arranged in the sleeve 2 and its lower end is fixedly connected to the lower anchor plate 1, and the upper end of the support rod 6 is provided with a reference plate 5 , A displacement sensor 4 is arranged directly above the reference disk 5 . The reference disc 5 is a disc body made of metal. A frozen soil detection area is formed between the opposite surfaces of the upper anchor plate 3 and the lower anchor plate 1 outside the casing 2 . The size of the upper anchor plate 3 outside the ca...

specific Embodiment approach 2

[0036] Embodiment 2: This embodiment is a further limitation of Embodiment 1. The displacement sensor 4 is a non-contact eddy current displacement sensor or a laser displacement sensor. The displacement sensor 4 is an existing product, and its use process is the same as that of the existing product.

specific Embodiment approach 3

[0037] Specific implementation mode three: combination figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 This embodiment is described. In this embodiment, a plurality of flexible layered frost-heaving cells are arranged sequentially from bottom to top to form an integrated structure.

[0038] The unit that forms the integrated detection device includes the lower anchor plate 1, the casing 2, the upper anchor plate 3, the displacement sensor 4, the reference plate 5 and the support rod 6, and the upper anchor plate 3 and the lower anchor plate 1 are arranged in sequence from top to bottom , the casing 2 is set between the upper anchor plate 3 and the lower anchor plate 1, the support rod 6 is vertically arranged in the sleeve 2 and its lower end is fixedly connected to the lower anchor plate 1, and the upper end of the support rod 6 is provided with a reference plate 5 , A displacement sensor 4 is arranged directly above the reference disk 5 . A frozen...

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Abstract

The invention relates to a frost heaving monomer of flexible non-contact type detection soil, a detection device and a detection method thereof. In cold area project construction, the geological condition of a construction site is complex; the frost heaving deformation monitoring difficulty of frozen soil is high; frost heaving data at different depths in an area is difficultly obtained at the same time; a sleeve in the frost heaving monomer is arranged between an upper anchor plate and a lower anchor plate; a support rod is arranged in the sleeve; furthermore, the lower end of the support rodis fixedly connected onto the lower anchor plate; a reference plate is arranged on the upper end of the support rod; a displacement sensor is arranged over the reference plate; the detection method is that: the number of test points in a test area and the distribution position of various test points are determined according to the frozen soil type of the test area; a detection device, which is composed of a frost heaving monomer or at least two frost heaving monomers, is correspondingly installed at the position of each test point; the frost heaving amount data of a frost heaving layer, wherethe various test points are, at different times is obtained; and the frost heaving deformation condition of the frozen soil in the test area is obtained by summarization of frost heaving amount datafed back by the various test points. The frost heaving monomer of the flexible non-contact type detection soil, the detection device and the detection method thereof in the invention are used for monitoring the frost heaving amount of the frozen soil in the vertical or horizontal direction.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a flexible non-contact detection soil frost heave monomer, a detection device and a detection method thereof. Background technique [0002] Permafrost is a soil medium that is extremely sensitive to temperature. Building engineering structures in permafrost must face two major dangers: frost heaving and thawing. They cause great harm to roads, bridges and buildings, such as cracks, Subsidence, structural failure, etc. The freezing process of soil is the result of the interaction of temperature field, moisture field and stress field. The complexity of the freezing process affected by geological conditions, climatic conditions and loads is reflected in the non-uniform and local characteristics of frost heave deformation. It is difficult to monitor the frost heave and thaw settlement process in indoor construction or on the construction site, and a reliable mo...

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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