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A device for simulating soil subjected to extreme climate and a testing method using the device

A technology for simulating soil and climate, applied in soil material testing, non-electric variable control, instruments, etc., can solve problems such as lack of relatively mature theories, and achieve the effects of simple structure, easy installation and disassembly, and strong applicability

Inactive Publication Date: 2015-11-18
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, research in this field is still in its infancy, and there is no relatively mature theory

Method used

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  • A device for simulating soil subjected to extreme climate and a testing method using the device
  • A device for simulating soil subjected to extreme climate and a testing method using the device
  • A device for simulating soil subjected to extreme climate and a testing method using the device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Such as figure 1 , 2 As shown in , 3, a device for simulating soil subjected to extreme weather includes a saturation cylinder 1, a temperature and humidity sensor 2, an ultrasonic humidifier 3, a glass fiber heating belt 4, a controller 6, a vacuum pump 7, a steel container 15, an artificial The rainfall device 12, the water inlet pipe 18, and the saturation cylinder 1 are cylindrical, and there is no dead angle in the simulated rainfall process, which can ensure the uniformity of the rainfall;

[0037] Described artificial rainfall device 12 is the plexiglass of circular evenly distributed φ1cm drop-type rainfall hole 20, and plexiglass is contained in saturation cylinder 1 top, and forms an independent space A in saturation cylinder 1 top;

[0038] The saturation cylinder 1 is arranged in a steel container 15, and the insulation filling material 14 and the glass fiber heating belt 4 are filled between the outer wall of the saturation cylinder 1 and the inner wall o...

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Abstract

The invention discloses a method for stimulating the action of soil under extreme climate, and an apparatus thereof. The method and the apparatus are suitable for the indoor manual controlled stimulation research of the change of physical and mechanical properties of soil under the action of drought, rainfall (acid rain) and drought and rainfall coupled extreme climate processes, and can stimulate the influences of the extreme climate on the properties of soil. The stimulation ground temperature is in a range of 0-75DEG C, the air humidity is in a range of 0-95%RH, and the rainfall intensity is 0-250mm / h and can be adjusted at will as needed to generate many types of rainfall (heavy rain and acid rain). Different work modules are started to research the mechanical response of soil under the environment action influences of drought, rainfall and drought and rainfall coupled climates; and the apparatus has the advantages of mutually independent systems, simple structure, convenient installation and dismounting, high flexibility and strong applicability.

Description

technical field [0001] The invention relates to a method and a device in geotechnical engineering research, in particular to a method and a device for simulating soil being subjected to extreme climate effects of drought and rainfall (acid rain). Background technique [0002] Soil is composed of three phases: solid, liquid and gas. The solid particles are composed of various clay minerals, which make the soil have great diversity and variability. Changes in physical and chemical properties of soil are not only caused by mechanical action, but more importantly, by environmental factors, of which climate and environment are the main external dynamic geological factors. In recent years, industrial pollution and global warming have led to more and more extreme climate events such as drought, rainfall (acid rain) and their coupling in my country. In these extreme climate environments, the physical and chemical properties of the soil will change, which in turn will affect the mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24G05D27/02
Inventor 程圣国林姗顾剑云邓丽华潘飞
Owner CHINA THREE GORGES UNIV
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