Three-sample linkage freeze-thaw test system for real-time simulation of freeze-thaw process of soil

A real-time simulation and test system technology, applied in the field of test systems that simulate soil freeze-thaw cycles, can solve the problems of inconvenient parallel tests, waste of energy, time and manpower, etc., and achieve important social value, low energy consumption, time-saving effect

Inactive Publication Date: 2018-08-14
COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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  • Abstract
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Problems solved by technology

In order to simulate the freeze-thaw process of multiple soil samples at different times, under different initial conditions and at different temperatures, the ind

Method used

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  • Three-sample linkage freeze-thaw test system for real-time simulation of freeze-thaw process of soil
  • Three-sample linkage freeze-thaw test system for real-time simulation of freeze-thaw process of soil
  • Three-sample linkage freeze-thaw test system for real-time simulation of freeze-thaw process of soil

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Embodiment Construction

[0031] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0032] Such as Figure 1-3 As shown, a three-sample linkage freeze-thaw test system for real-time simulation of soil freeze-thaw process, including test box, water supply system, cold source circulation tank system, refrigeration system, air conditioning system, electrical measurement and control system and safety protection system.

[0033] The test box 1 is composed of the human-machine interface control system 3 located on the right side of the working door 2, the visible window 4 in the middle of the working door, the test hole 6 on the left side of the working room 5, and the air-conditioning air supply device 7 and three in the working room 5. The sample base 8, the three-sample cooling top plate 9, the refrigeration unit 10 located under the test box 1, the safety protection system 11 on the upper part of the test box 1 and the external co...

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Abstract

The invention relates to a three-sample linkage freeze-thaw test system for the real-time simulation of freeze-thaw process of soil. A test box body is composed of a working chamber, a refrigeration unit, an air conditioning air supply device, a control system and a safety protection system; a water supply system monitors and observes the change of water and the state of the pore water pressure inreal time in the freeze-thaw process of a sample; a cold source circulation tank system adopts an integrated structure formed by a drawer type layout in a cold bath tank; a refrigeration system adopts a high-precision temperature and humidity control system, so the refrigeration system is effectively and safely protected; the air conditioning system control system automatically achieves dynamic balance and achieves the purpose of temperature change; an electrical measurement and control system ensures the automatic degree of the system, and important parameters in the test process are displayed by a human-computer interaction interface; and the safety protection system protects the safe running of the system in real time. The three-sample linkage freeze-thaw test system has the characteristics of real time, high efficiency, safety, stability, automation, convenient energy saving, simple simulation process, good stability and reliability, and high precision.

Description

technical field [0001] The invention relates to a three-sample linkage freeze-thaw test system for simulating the freeze-thaw process of soil in real time, in particular to a test system for simulating the freeze-thaw cycle of soil. The test system can be used to quickly complete the simulation of the freeze-thaw cycle of the test soil sample. At the same time, it can measure the temperature of different frozen layers, the amount of freeze-thaw subsidence, and the amount of frost heave. The change of pore water pressure during the freeze-thaw process is an effective test system for simulating the freeze-thaw cycle test of soil. Background technique [0002] As a specific form of soil temperature change, the freeze-thaw cycle has a strong impact on the structure of the soil in cold regions, causing frost heaving and thawing of the soil, which has brought great harm to engineering construction in cold regions. No matter in the vast seasonal frozen soil area or the upper activ...

Claims

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Application Information

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IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 杨成松马巍王丹张莲海
Owner COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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