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Multifunctional soil sampling device

A multi-functional, soil-taking pipe technology, applied in the field of geotechnical engineering, can solve problems such as single function and limited application range, and achieve the effects of reducing disturbance, improving accuracy, and saving test costs

Pending Publication Date: 2021-01-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Soil extractors are widely used in the fields of geotechnical engineering investigation and environmental geotechnical engineering, but their functions are relatively single, which greatly limits their application range

Method used

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0027] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", The orientation or positional relationship indicated by "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or elem...

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Abstract

The invention provides a multifunctional soil sampling device. The multifunctional soil sampling device comprises a soil sampling system, a resistivity testing system, a soil body strength testing system, a shell and a controller, the soil sampling system comprises a soil sampling pipe; the soil sampling pipe is arranged in the shell; the resistivity testing system is provided with a plurality ofannular electrodes, and the annular electrodes are installed on the inner wall of the shell from top to bottom through an insulating plastic layer; the resistivity test system is connected with the controller; the soil body strength testing system comprises a stepping motor, a torsion sensor and a shearing mechanism; the stepping motor is connected with the upper portion of the shell, the shearingmechanism is installed on the shell, and the torsion sensor is connected with the stepping motor and the controller. According to the invention, the resistivity and the shear strength of the soil body can be rapidly measured on the in-situ soil, the soil sampling work can be carried out, multiple functions are integrated, the geological survey efficiency is greatly improved, and the test cost issaved.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a multifunctional earth-taking device. Background technique [0002] In the process of geotechnical engineering testing, it is often necessary to collect soil samples, and then take soil samples from different strata for geotechnical tests to understand their physical and mechanical properties. However, the geological conditions of each project area are different, and different testing items have different requirements for soil sampling depth and soil sample size. The quality of soil samples is divided into grades I, II, III, and IV according to the purpose of the test. Grade I soil samples: without disturbance, can carry out soil name, moisture content, density, strength and consolidation tests; grade II soil samples: slightly disturbed, can carry out soil name, moisture content, density tests; grade III soil samples: Significantly disturbed, soil t...

Claims

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Application Information

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IPC IPC(8): G01N1/08G01N27/04G01N3/24
CPCG01N1/08G01N3/24G01N27/041G01N2203/0244G01N2203/0676G01N2203/0682
Inventor 周恩全戚良裕左熹
Owner JIANGSU UNIV
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