Indoor simulation system and characteristic parameter determination method of loess moisture migration rule

Abstract

The invention discloses an indoor simulation system of loess moisture migration rule. The indoor simulation system comprises: an indoor simulation system casing, a loess moisture migration rule characteristic parameter measurement system, a test data acquisition and control device, a heating and cooling integrated machine, a rainfall simulation system and a geologic model system; the rainfall simulation system comprises: a rainfall groove, a circular rainfall aperture, a rainfall groove internal pressure control pipe and a water inlet pipe; the geologic model system comprises a base, a geologic model groove, a longitude and latitude grating plate, a pottery clay plate and multiple semiconductor heating and refrigerating sheets which are connected in series connection; the loess moisture migration rule characteristic parameter measurement system comprises a soil temperature and water content measurement system, rainfall radial flow measurement system and a rainfall seepage amount measurement system; the invention also discloses a loess moisture migration rule characteristic parameter determination method. The invention has the advantages of operation convenience and functional completeness, good practicality, good usage effect and popularization convenience, and provides an approach for further research of loess moisture migration rule in the condition of rainfall.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to an indoor simulation system of loess water migration law and a method for measuring characteristic parameters. Background technique [0002] Loess is widely distributed in my country, mainly in several northern provinces between 30-49 degrees north latitude and 101-114 degrees east longitude, with a total area of ​​about 630,000 square kilometers. At the same time, there are different degrees of seasonal freezing and thawing in these areas. Because the loess on the surface is exposed to the atmosphere in a large area, it is affected by external factors such as temperature, radiation, evaporation, precipitation, and the shady and sunny slope of the slope, and the freezing and thawing process in the seasonal freezing and thawing area will cause the water migration and water gravity of the loess. distribution, intensifies the accumulation of water in the...

AI Technical Summary

Problems solved by technology

In the prior art, there is no system that can conveniently simulate the law of loess moisture migration indoors, nor can it measure the characteristic parameters of the law of water migration of loess indoors.

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