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Multifunctional unsaturated soil in-situ matrix suction measuring instrument

A matrix suction and multi-functional technology, which is applied in soil material testing, material thermal development, material inspection, etc., can solve the problems of inaccurate measurement, single function, complicated operation, etc., and achieve wide measurement range, simple operation, and wear resistance strong effect

Pending Publication Date: 2022-02-11
JILIN UNIV
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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a multifunctional unsaturated soil in-situ matrix suction measuring instrument, which aims to solve the following problems: the existing measuring method has single function, inaccurate measurement, long time-consuming, complicated operation and inconvenient portability, etc. question

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  • Multifunctional unsaturated soil in-situ matrix suction measuring instrument

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] The invention adopts the heat conduction method to measure the soil matrix suction, which can effectively avoid the influence of soil salinity and atmospheric temperature, and can obtain the heat conductivity and thermal diffusivity of the soil while determining the matrix suction. Another advantage of the present invention is that the data can be uploaded to the PC in time for continuous and remote monitoring.

[0028] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0029] see Figure 1-Figure 2 , a multifu...

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Abstract

The invention is suitable for the related technical field of soil texture detection equipment, and provides a multifunctional unsaturated soil in-situ matrix suction measuring instrument. Themultifunctional unsaturated soil in-situ matrix suction measuring instrument comprises a PC (Personal Computer) end, a cable, a data collector, a power supply device, a signal stability augmentation device and a thermal conductivity suction sensor; the PC end, the cable, the data collector, the power supply device, the signal stability augmentation device and the thermal conductance suction force sensor are connected through the cable, the thermal conductance suction force sensor comprises a circuit bottom plate and a detachable probe, and the in-situ matrix suction force measuring instrument is accurate in measurement, easy to operate, easy to carry and rich in function.

Description

technical field [0001] The invention relates to the related technical field of soil quality testing equipment, in particular to a multifunctional unsaturated soil in-situ matrix suction measuring instrument. Background technique [0002] Most of the soil encountered in the construction process of geotechnical engineering is in an unsaturated state, such as slope engineering, foundation pit engineering, roadbed engineering, etc. Matric suction can reflect the deformation properties, mechanical properties and permeability properties of unsaturated soil. In order to avoid engineering geological disasters caused by insufficient and inaccurate investigation and design in the above projects, it is necessary to accurately measure the matrix suction of unsaturated soil to analyze its mechanical properties. Therefore, accurate measurement of matrix suction is crucial in geotechnical engineering. important. [0003] Measuring matric suction in unsaturated soils is a time-consuming a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20G01N33/24
CPCG01N25/20G01N33/24
Inventor 于子望康建国张延军张通吴少华姚佩仪杨天睿冶晓琪闫朝辉
Owner JILIN UNIV
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