TY - GEN
T1 - Particle Mobilization and Piping Erosion of Granular Soil Under Various Fluid Characteristics and Flow Conditions
AU - Xiao, Ming
AU - Adams, Benjamin
AU - Gholizadeh-Vayghan, Asghar
AU - Ma, Yuetan
N1 - Funding Information:
Acknowledgement. This research was funded by the National Science Foundation CMMI Geotechnical Engineering and Materials Program under award number CMMI 1200081 and The Pennsylvania State University.
Publisher Copyright:
© 2020, Springer Nature Switzerland AG.
PY - 2020
Y1 - 2020
N2 - This paper presents the soil’s internal erosion in earthen embankments due to seepage with various physicochemical fluid characteristics and flow conditions. The paper includes two components: (1) experimental study on the relative and interactive effects of fluid’s viscosity, pH, and ionic strength on the incipient motion of a single granular particle under laminar flow condition, and (2) bench-scale piping erosion progression of sand considering the same seepage’s physicochemical characteristics under turbulent flow. An innovative experimental setup was designed and constructed that can simultaneously adjust fluid’s viscosity, pH, and ionic strength and provide repeatable test results on particle’s incipient motion and soil erosion rate index. This research showed the relative and interactive effects of three physicochemical characteristics (viscosity, pH and ionic strength) of permeating fluid on particle mobilization and on piping erosion of a sandy soil. This paper suggests in the field evaluation of piping in earthen embankments, if the subsurface seepage is known to possess different physicochemical characteristics from those of tap water or distilled water, the fluid’s properties should be considered in the laboratory tests of piping.
AB - This paper presents the soil’s internal erosion in earthen embankments due to seepage with various physicochemical fluid characteristics and flow conditions. The paper includes two components: (1) experimental study on the relative and interactive effects of fluid’s viscosity, pH, and ionic strength on the incipient motion of a single granular particle under laminar flow condition, and (2) bench-scale piping erosion progression of sand considering the same seepage’s physicochemical characteristics under turbulent flow. An innovative experimental setup was designed and constructed that can simultaneously adjust fluid’s viscosity, pH, and ionic strength and provide repeatable test results on particle’s incipient motion and soil erosion rate index. This research showed the relative and interactive effects of three physicochemical characteristics (viscosity, pH and ionic strength) of permeating fluid on particle mobilization and on piping erosion of a sandy soil. This paper suggests in the field evaluation of piping in earthen embankments, if the subsurface seepage is known to possess different physicochemical characteristics from those of tap water or distilled water, the fluid’s properties should be considered in the laboratory tests of piping.
UR - http://www.scopus.com/inward/record.url?scp=85084181006&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85084181006&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-46351-9_6
DO - 10.1007/978-3-030-46351-9_6
M3 - Conference contribution
AN - SCOPUS:85084181006
SN - 9783030463502
T3 - Springer Series in Geomechanics and Geoengineering
SP - 56
EP - 74
BT - Dam Breach Modelling and Risk Disposal - Proceedings of the 1st International Conference on Embankment Dam, ICED 2020
A2 - Zhang, Jian-Min
A2 - Wang, Rui
A2 - Zhang, Limin
PB - Springer
T2 - 1st International Conference on Embankment Dams, ICED 2020
Y2 - 5 June 2020 through 7 June 2020
ER -