Soil horizontal frost-heaving visualization testing apparatus

A test device and soil technology, applied in the direction of soil material testing, material inspection products, preparation of test samples, etc., can solve the problems of lack of research on soil horizontal frost heave systems

Inactive Publication Date: 2018-04-20
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] An object of the present invention is to provide a soil level frost heave visualization test

Method used

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  • Soil horizontal frost-heaving visualization testing apparatus
  • Soil horizontal frost-heaving visualization testing apparatus
  • Soil horizontal frost-heaving visualization testing apparatus

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Embodiment Construction

[0030] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0031] The present invention provides an embodiment of a soil horizontal frost heave visualization test device, figure 1 A schematic structural view showing a soil level frost heave visualization test device provided by the present invention, it should be noted that, figure 1The black rectangle outline in the middle only represents the experimental space which is different from the external environment. The experimental space should contain the most basic external conditions that can realize the present invention. The pres...

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Abstract

The invention provides a soil horizontal frost-heaving visualization testing apparatus. The soil horizontal frost-heaving visualization testing apparatus comprises a sample cylinder, a loading system,a digital image measurement system, a water-supplementing system, and a temperature control system. The soil horizontal frost-heaving visualization testing apparatus can realize requirements of an experiment under different temperature conditions; performs real-time observation and analysis on moisture migration and temperature gradient change during a sample soil horizontal freezing process; performs real-time determination on frost-heaving displacement and stress during the sample soil horizontal freezing process, and realizes engraving of a horizontal segregated ice growth process in the horizontal freezing process.

Description

technical field [0001] The invention relates to the field of civil engineering equipment. More specifically, it relates to a soil horizontal frost heave visualization test device. Background technique [0002] In cold regions, due to the migration of water in soil or rocks, roads paved with high-grade pavements or gravel pavements and their auxiliary structures, tunnels, retaining walls, sidewalks and slopes are prone to greater damage. The phenomenon is called soil frost heaving. According to the direction of water migration, soil frost heave can be divided into horizontal frost heave and vertical frost heave, among which the vertical frost heave has more and more obvious influence factors, so most of the current studies on soil frost heave focus on vertical frost heave . However, there are few studies on horizontal frost heave. According to the existing technology, the research on horizontal frost heave is only limited to the field test of horizontal frost heave force o...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N33/24
CPCG01N1/28G01N33/24
Inventor 沈宇鹏田亚护刘建坤汤天笑左瑞芳刘晓强林园榕李平
Owner BEIJING JIAOTONG UNIV
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