A new undisturbed soil column sampling device and its application method

A technology of undisturbed soil column and sampling device, which is applied in the direction of sampling device, etc., can solve the problems such as difficult to realize undisturbed soil column sampling, and achieve the effect of uniform force, easy extraction, and reduced extraction disturbance

Active Publication Date: 2021-01-19
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, a novel undisturbed soil column sampling device and its use method provided by the present invention solve the problem that it is difficult to realize undisturbed soil column sampling

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  • A new undisturbed soil column sampling device and its application method
  • A new undisturbed soil column sampling device and its application method
  • A new undisturbed soil column sampling device and its application method

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Embodiment Construction

[0041] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0042] Such as Figure 1 to Figure 8 Commonly shown, a novel undisturbed soil column sampling device is characterized in that it includes a fixing device 1, a pressure lifting device 2, a fixed steel pile 3, a plexiglass cylinder 4, a ring knife 5, a transmission device 7, and a stainless steel sleeve 9 and plexiglass port 10;

[0043] The fixing device 1 includes a circular chassis 1-1 and a rectangular bracket 1-2 arrang...

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Abstract

The invention discloses a novel undisturbed soil column sampling device and a using method thereof. The present invention adopts a press-in type, without vibration disturbance, and can ensure uniform force and vertical press-in; each part of the present invention is connected by a threaded hole, which is convenient for assembly and disassembly, and can be operated by a single person; the plexiglass used as the main body of the earth drill in the present invention The cylinder can be directly connected with the plexiglass port, directly becoming the main body of the soil column, and carrying out the penetration test without secondary filling; in the present invention, the pressing device can be used as the pulling device, and the force is uniform and the pulling out disturbance is reduced; the present invention Under the guidance of the plexiglass column and the internal through hole of the ring knife, the stainless steel sheet can enter the soil to cut off the soil column and connect with the underlying soil, and make full use of the negative pressure to make the entire soil column pull out easier with minimal disturbance.

Description

technical field [0001] The invention relates to the technical field of soil sampling, in particular to a novel undisturbed soil column sampling device and a using method thereof. Background technique [0002] Soil column experiment is an indispensable method for research in agriculture, forestry, water conservancy, environment and other fields. Through soil column experiment, the migration law and mechanism of moisture and pollutants in soil can be studied indoors. In general soil column experiments, the soil is retrieved, air-dried, ground, and refilled. However, for some studies, such as soil preferential flow, it is necessary to maintain the pore structure of the soil as much as possible, so the undisturbed soil column is required for experiments. The existing soil sampling methods are mainly divided into two categories: excavation sampling and soil drilling sampling, but it is difficult to achieve undisturbed soil column sampling: [0003] 1. Excavation sampling is dest...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/08
CPCG01N1/08
Inventor 谭霄谭博刘超庄文化李龙国李乃稳贺宇欣
Owner SICHUAN UNIV
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