Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Measurement of Soil Air Suction Change during Freezing-Thawing Process
This paper introduces a new instrument and experimental procedure that estimates the change of air suction in soils during the freeze-thaw process. The experimental procedures include a nondestructive measurement by Time Domain Reflectometry (TDR) sensor, which captures the freezing-thawing status. The change of air suction causes change of soil volume, which is estimated from the volume change and soil deformation modulus. The experimental data indicates there is graduate decrease in the magnitude of the negative air suction, which resulted in volume expansion in soils. The observed bulk volume change is the combined effects of the volume contraction due to ice melting and the volume expansion due to the reduction in the negative air suction. The magntiude of air suction reduction estimated is achieved by fusion the information from both mechanical and electromagnetic measurment.
Measurement of Soil Air Suction Change during Freezing-Thawing Process
This paper introduces a new instrument and experimental procedure that estimates the change of air suction in soils during the freeze-thaw process. The experimental procedures include a nondestructive measurement by Time Domain Reflectometry (TDR) sensor, which captures the freezing-thawing status. The change of air suction causes change of soil volume, which is estimated from the volume change and soil deformation modulus. The experimental data indicates there is graduate decrease in the magnitude of the negative air suction, which resulted in volume expansion in soils. The observed bulk volume change is the combined effects of the volume contraction due to ice melting and the volume expansion due to the reduction in the negative air suction. The magntiude of air suction reduction estimated is achieved by fusion the information from both mechanical and electromagnetic measurment.
Measurement of Soil Air Suction Change during Freezing-Thawing Process
Liu, Yan (Autor:in) / Yu, Xinbao (Autor:in) / Yu, Xiong (Bill) (Autor:in)
GeoHunan International Conference 2009 ; 2009 ; Changsha, Hunan, China
13.07.2009
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Measurement of Soil Air Suction Change during Freezing-Thawing Process
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