TY - GEN
T1 - Slope stability assessment using field moisture data for North Texas clay soil
AU - Le, Minh
AU - Pedarla, Aravind
AU - Chittoori, Bhaskar C.S.
AU - Patil, Ujwal
AU - Hoyos, Laureano R.
AU - Puppala, Anand J.
AU - Perrin, Les
PY - 2013
Y1 - 2013
N2 - Surficial slope failures are generally induced by the collection of precipitation in the cracks formed during dry summers. In the present research, an earthen dam in North Texas subjected to past failures due to surficial slope failures was selected. Soil from the site was sampled and studied for basic and advanced soil parameters including Soil Water Characteristic Curve (SWCC) in laboratory. Moisture probes were installed along the test section and monitored for a period of time. The variation of field moisture content reflected directly through the sensors placed at specific depths. The critical volumetric moisture content data obtained from the field instrumentation was correlated with SWCC to determine soil suction characteristics, which in turn was correlated to unsaturated soil strength parameters. These parameters are used in numerical modeling to assess slope stability issues. This paper presents these findings, along with the importance of soil suction, on rainfall induced slope failures.
AB - Surficial slope failures are generally induced by the collection of precipitation in the cracks formed during dry summers. In the present research, an earthen dam in North Texas subjected to past failures due to surficial slope failures was selected. Soil from the site was sampled and studied for basic and advanced soil parameters including Soil Water Characteristic Curve (SWCC) in laboratory. Moisture probes were installed along the test section and monitored for a period of time. The variation of field moisture content reflected directly through the sensors placed at specific depths. The critical volumetric moisture content data obtained from the field instrumentation was correlated with SWCC to determine soil suction characteristics, which in turn was correlated to unsaturated soil strength parameters. These parameters are used in numerical modeling to assess slope stability issues. This paper presents these findings, along with the importance of soil suction, on rainfall induced slope failures.
UR - http://www.scopus.com/inward/record.url?scp=84887486242&partnerID=8YFLogxK
U2 - 10.1061/9780784412787.038
DO - 10.1061/9780784412787.038
M3 - Conference contribution
AN - SCOPUS:84887486242
SN - 9780784412787
T3 - Geotechnical Special Publication
SP - 383
EP - 393
BT - GeoCongress 2013
T2 - 2013 Congress on Stability and Performance of Slopes and Embankments III, Geo-Congress 2013
Y2 - 3 March 2013 through 7 March 2013
ER -