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Method for detecting content of unfrozen water in frozen soil

A detection method and technology for unfrozen water, which are applied in soil material testing, neural learning methods, measuring devices, etc., to achieve the effects of strong practicability, convenient implementation, and simple method steps.

Pending Publication Date: 2021-06-22
李新春
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for detecting the unfrozen water content of frozen soil in view of the deficiencies in the prior art above. The test result can be obtained directly, the method steps are simple, and the implementation is convenient. It can be used to measure the unfrozen water content of frozen soil based on the resistivity, temperature and humidity of frozen soil, and can simplify the complex problem of unfrozen water content detection of frozen soil. , with accurate measurement results, strong practicability, good use effect, and easy to promote and use

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  • Method for detecting content of unfrozen water in frozen soil

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Embodiment Construction

[0027] like figure 1 Shown, permafrost unfrozen water content detection method of the present invention, the method comprises the following steps:

[0028] Step 1. Connect the detection equipment. The specific process is: put the conductive sheet, temperature sensor, humidity sensor and resistivity detection sensor into the frozen soil, connect the conductive sheet to the external power supply for it, and connect the temperature sensor to the external power supply. The output end, the output end of the humidity sensor and the output end of the resistivity detection sensor are all connected to the input end of the data collector, and the data collector is connected to the data processor;

[0029] Step 2. Data collection and transmission: When the external power supply starts to supply power to the conductive sheet, the temperature sensor detects the temperature in the frozen soil in real time, the humidity sensor detects the humidity in the frozen soil in real time, and the res...

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Abstract

The invention discloses a method for detecting the content of unfrozen water in frozen soil. The method comprises the following steps: 1, connecting detection equipment; 2, carrying out data acquisition and transmission; and 3, processing data to obtain the unfrozen water content of the frozen soil. The frozen soil unfrozen water content prediction neural network model is adopted for data processing, the detection result can be directly obtained when detection data are input, the method is simple in step and convenient to implement, and the method can be used for frozen soil unfrozen water content measurement based on the resistivity, temperature and humidity of frozen soil. The method can simplify the complex problem of unfrozen water content detection of frozen soil, and is accurate in measurement result, high in practicability, good in use effect and convenient to popularize and use.

Description

technical field [0001] The invention belongs to the technical field of detecting unfrozen water content of frozen soil, and in particular relates to a method for detecting the unfrozen water content of frozen soil. Background technique [0002] Unfrozen water in frozen soil plays an important role in frozen soil mechanics. The unfrozen water content of frozen soil has a significant impact on the interaction between soil and pile foundations. In the study of frozen soil, the unfrozen soil The method of measuring water content has not been explained systematically and scientifically, so it is an urgent problem to be solved for academic research and engineering practice. [0003] At present, the methods for testing the unfrozen water content of frozen soil mainly include nuclear magnetic resonance method, neutron spin echo method, calorimetry method, and dielectric property method. The methods commonly used in laboratories include temperature measurement method. There are defi...

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Application Information

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IPC IPC(8): G01N33/24G06N3/04G06N3/08
CPCG01N33/246G06N3/04G06N3/08
Inventor 不公告发明人
Owner 李新春
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