PRESENTATION OF LONG-TERM MATRIC SUCTION MEASUREMENTS IN A HIGHWAY SUBGRADE USING THERMAL CONDUCTIVITY SENSORS
At each of two Thin Membrane Surface (TMS) highway locations in Saskatchewan, Canada, 16 thermal conductivity sensors had been installed to monitor in situ matric suctions. The matric suctions were calculated using the drying branch of the hysteresis loop that represents the calibration curve. The soil suction measurements showed a strong seasonal pattern. Suctions showed a correlation to rainfall. Relatively constant suctions were encountered under the driving-lane. Under the side-slope, the matric suctions were found to vary considerably with time and location. For the depths below 2.0 m, the differences in matric suctions under the driving-lane and under the side-slope were small.
Q.Nguyen L.Samarasekera D.G.Fredlund B.L.Marjerison
University of Saskatchewan, Saskatoon, Canada Golder Associates Ltd., Saskatoon, Canada Saskatchewan Highways and Transportation, Saskatoon, Canada
国际会议
南京
英文
487-492
2007-04-21（万方平台首次上网日期，不代表论文的发表时间）