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Structuring method of relation model of resistivity and temperature and unfrozen water of frozen earth

A technology of relational model and construction method, which is applied in the direction of measuring device, soil material testing, instrument, etc., to achieve the effect of convenient implementation and simple method steps

Active Publication Date: 2017-03-29
XIAN UNIV OF SCI & TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method for constructing a relationship model between resistivity and temperature of frozen soil and the unfrozen water content of frozen soil in view of the deficiencies in the above-mentioned prior art. The complex problem of soil unfrozen water content detection is simplified, and the measurement result is accurate, the practicability is strong, the use effect is good, and it is easy to popularize and use

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  • Structuring method of relation model of resistivity and temperature and unfrozen water of frozen earth
  • Structuring method of relation model of resistivity and temperature and unfrozen water of frozen earth

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Embodiment Construction

[0056]like figure 1 Shown, the relational model construction method of frozen soil resistivity and temperature and the unfrozen water content of frozen soil of the present invention, comprises the following steps:

[0057] Step 1, prepare experimental equipment, described experimental equipment comprises soil sample box 1, AC voltage regulating power supply 2, ammeter 3, voltmeter 4, vacuum oven, electronic balance, freezer and temperature measuring instrument, on the described temperature measuring instrument A temperature measuring probe is connected, and the left and right side walls of the soil sample box 1 are provided with conductive strips 5 that can contact the two ends of the soil sample in the soil sample box 1, the front wall of the soil sample box 1 and / or the rear wall is provided with a temperature measurement probe hole for inserting the temperature measurement probe;

[0058] Step 2. Carry out the drying condition experiment, and measure the relationship betw...

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Abstract

The invention discloses a structuring method of relation model of the resistivity and temperature and the unfrozen water of frozen earth. The method comprises, firstly, preparing experimental equipment; secondly, performing drying condition experiments to obtain the relation between positive-temperature earth sample resistivity and instant moisture content; thirdly, performing freezing condition experiments to obtain the relation between negative-temperature earth sample resistivity and temperature; fourthly, performing relation reasoning of frozen earth unfrozen water content of different initial moisture contents and temperature at negative temperatures; lastly, establishing a relation model of the resistivity and temperature and the unfrozen water of frozen earth. The structuring method of relation model of the resistivity and temperature and the unfrozen water of frozen earth is simple in process, convenient to implement, capable of simplifying detection of frozen earth water content, accurate in measuring results, high in practicality, good in application effects and easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of measuring the unfrozen water content of frozen soil, and in particular relates to a method for constructing a relationship model between resistivity and temperature of frozen soil and the unfrozen water content of frozen soil. Background technique [0002] Since N.A.Tsytovich proposed the concept of unfrozen water content in permafrost in 1940, many scholars at home and abroad have devoted themselves to the study of unfrozen water content, studying the role of this index in engineering physics and mechanics, and the specific factors affecting the unfrozen water content. and a test method for unfrozen water content. Among them, the research on testing methods has been considered by many scholars as one of the difficulties in scientific research in the field of permafrost. Based on the development of electromagnetism, chemistry, heat, optics and other disciplines since the middle of last century, scholars ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/246
Inventor 唐丽云王柯杨更社奚家米吴迪杨洁邱培勇王杰白苗
Owner XIAN UNIV OF SCI & TECH
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