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Device for testing electric conductivity and soil-water characteristics of loess

A soil-water characteristic and testing device technology, applied in soil material testing, measuring devices, force/torque/work measuring instruments, etc., can solve the problems of limited suction range, complicated time-consuming, etc., and achieve stable control, convenient operation, and data reliable results

Pending Publication Date: 2017-01-11
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Generally speaking, the current laboratory suction measurement or control methods are very complicated and time-consuming, and the range of suction that can be measured is also limited

Method used

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  • Device for testing electric conductivity and soil-water characteristics of loess
  • Device for testing electric conductivity and soil-water characteristics of loess
  • Device for testing electric conductivity and soil-water characteristics of loess

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The invention provides a testing device for the conductivity performance and soil water characteristics of loess, such as Figure 1-5As shown, including the base, the base is provided with a sleeve, and the sleeve is provided with a pull rod 14. The sleeve is divided into several layers from top to bottom, and each layer of the sleeve is connected with a resistivity measurement system and a suction force. Measuring system and moisture measuring system, both ends of the sleeve are provided with porous plates 12, the porous plate 12 at one end of the sleeve is provided with an upper cover plate 10, and the upper cover plate 10 is provided with a pressing rod 6;

[0029] An upper supporting plate 11 and an upper insulating plate 7 are arranged between the perforated plate 12 and the upper cover plate 10, and the bolts pass through the per...

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Abstract

The invention discloses a device for testing electric conductivity and soil-water characteristics of loess. The device comprises a base, wherein a sleeve is arranged on the base; a pull rod is arranged in the sleeve; the sleeve is divided into a plurality of layers from top to bottom; each layer of the sleeve is connected with a resistivity measuring system, a suction measuring system and a moisture measuring system; a porous plate is arranged at each of two ends of the sleeve; an upper cover plate is arranged on the porous plate at one end of the sleeve; and a pressure rod is arranged on the upper cover plate. The device for testing electric conductivity and soil-water characteristics of loess realizes the purpose of simultaneously obtaining the resistivity and soil-water characteristic curve of the loess on the same equipment, realizes automatic measurement, enables data acquisition to be convenient and reliable, records the resistivity, moisture volume percentage and suction evolution condition of the loess at any time, can reflect the microscopic evolution rule of moisture migration in the loess, and can realize loading-unloading and simulation of long-term deformation characteristics of remolded loess and the moisture migration and pore state evolution rule in the loess.

Description

technical field [0001] The invention belongs to the technical field of soil resistivity and soil-water characteristic curve measurement, and relates to a testing device for the conductivity performance and soil-water characteristic of loess. Background technique [0002] Loess in Northwest China is mostly unsaturated soil, and the water sensitivity, permeability and unsaturated characteristics of unsaturated soil determine the strength and deformation characteristics of loess. The strength and deformation properties of loess are the most concerned mechanical properties of loess high fill engineering, slope engineering, tunnel engineering, and foundation pit engineering. Therefore, a deep understanding of the above-mentioned physical properties of loess is the core of solving loess mechanics and engineering problems at present. However, the means of studying the physical and mechanical properties of loess are slightly single. The present invention attempts to introduce the el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04G01N33/24G01L5/00
CPCG01L5/00G01N27/041G01N33/246
Inventor 朱才辉
Owner XIAN UNIV OF TECH
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