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Preparation method for glue-injected small polished surface of soil sample

A technology for injecting glue and soil samples, applied in the field of soil microstructure research, can solve problems such as deviation of soil analysis results, poor picture quality, and imperfect preparation methods for small surface of soil sample glue injection. The effect of reducing disturbance and selecting reasonable size

Inactive Publication Date: 2019-10-01
CHANGAN UNIV
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Problems solved by technology

For the electron microscope image analysis method, which is mainly used to study the morphological characteristics and orientation characteristics of pores and particles, the preparation method of the small smooth surface of the soil sample is not perfect, and the microstructure of the soil sample obtained under the electron microscope is not perfect. The poor quality of the pictures, which leads to deviations in the final analysis results of the soil, and affects the study of loess properties

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  • Preparation method for glue-injected small polished surface of soil sample
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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] As a certain preferred embodiment of the present invention, a method for preparing a soil sample glue-injected small smooth surface comprises the following steps:

[0027] Step 1: Select soil samples. Specifically, because the soil clods sealed and transported from the field will be disturbed to a certain extent, the soil samples are obtained from the center of the soil clods....

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Abstract

The invention discloses a preparation method for a glue-injected small polished surface of a soil sample. When the soil sample is selected, the cylindrical soil sample is cut from the center of soil,so that the disturbance of the soil sample can be reduced; a treatment method of natural air drying is adopted, so that the disturbance of the soil sample is reduced; when the soil sample is loess, asoaking solution is prepared according to a volume ratio of epoxy resin to acetone to ethylene diamine to dibutyl phthalate of 200 to 100 to 6 to 4; when the soil sample is ancient soil, the volume ratio of the epoxy resin to the acetone to the ethylene diamine to the dibutyl phthalate is 200 to 100 to 7 to 3; the soaking solution is higher than the soil sample for 0. 5-1 cm; and the soil sample is hermetically soaked for 5-10 days. According to the preparation method, the refractive index of the soaking solution is close to the refractive index of the soil sample, and the soaking solution canfully fill pores of the soil sample to achieve sufficient hardness; and after the soil sample is polished, the height of the soil sample is 2-5 mm, so that the soil sample can be observed by a microscope.

Description

technical field [0001] The invention belongs to the field of soil microstructure research, and in particular relates to a method for preparing a small smooth surface of a soil sample injected with glue. Background technique [0002] The research methods of soil microstructure mainly include electron microscope image analysis method and computer image analysis method, both of which are aimed at the morphological characteristics and orientation characteristics of pores and particles; X-ray perspective, which is aimed at the orientation of particles and pores; properties; acoustic wave method, for anisotropy; mercury intrusion method, for the number and size of pores; polarized light microscope photometry, for orientation. For different research methods of different soils, the sample preparation methods of its microstructure are also different. [0003] Loess is one of the main sediment types in my country, and the research on its microstructure has involved many fields. For ...

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Application Information

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IPC IPC(8): G01N23/2251G01N23/2202
CPCG01N23/2202G01N23/2251
Inventor 钱会张奇莹徐盼盼林涛郭梦
Owner CHANGAN UNIV
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