Measurement method and measurement device in soil freezing-thawing process

Abstract

The invention discloses a measurement method and a measurement device in a soil freezing-thawing process. The device comprises an operating rod, an ice water dielectric sensing module, a depth sensing module, a PVC plastic tube, a data transmission line, a data acquisition module, wherein the ice water dielectric sensing module is fixed at the bottom end of the operating rod and is used for measuring an ice water dielectric constant of a soil profile in real time; the depth sensing module is embedded inside the operating rod and is used for measuring current depth data; the PVC plastic tube is buried in the measured soil and serves as an operating guide rail of the depth sensing module; the data transmission line is used for transmitting the ice water dielectric constant and the depth data to a data acquisition module; and the data acquisition module is used for judging the current soil freezing-thawing condition according to the received data. The measurement device can rapidly, conveniently, accurately and effectively acquire ice water content of the soil, acquire the depth data of a measuring point and bring the accurate data to the analysis of the soil freezing-thawing condition. The mode of acquiring data is flexible and accurate and the cost is lower.

Description

technical field [0001] The invention relates to the field of measurement, in particular to a method and device for measuring soil freeze-thaw processes. Background technique [0002] Soil freeze-thaw refers to a physical geological action and phenomenon of freezing and thawing as the soil temperature drops below zero and rises above zero. Soil freezing and thawing is one of the types of geological disasters, which can produce a series of disaster effects, especially in high latitude and high altitude areas of our country. In the field of agriculture, the hazards of soil freezing and thawing are mainly manifested in: [0003] Firstly, the incompletely thawed frozen soil during spring plowing increases the energy consumption and wear of machinery during agricultural farming; secondly, the frozen soil has the characteristics of reducing seepage, resulting in a decrease in soil hydraulic conductivity, and surface runoff during rainfall or irrigation, resulting in soil erosion; ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method and device for measuring the freezing and thawing process of soil, so as to solve the shortcomings of the prior art for measuring frozen and thawed soil, such as too long measurement period, high cost, and inaccurate measurement results.

Images