Relationship between water content, shear deformation, and elastic wave velocity through unsaturated soil slope

This study aims to determine the relationship between water content, shear deformation, and elastic wave velocity of unsaturated soil slope. The individual influence of volumetric water content and tilt angle on the normalized wave velocity through unsaturated soil was investigated through a series of adjustable slope model tests. The relationship function between volumetric water content, tilt angle, and normalized wave velocity was established. To verify the proposed relationship function, fixed slope model tests were carried out. The relationship functions could be used to estimate the behaviors of wave velocity in rainfall-induced slope failure model tests. The applicability of proposed relationship function for wave velocity behaviors is also presented. It is found that the relationship function is highly consistent with the measurements for wave velocity behaviors through unsaturated soil slope. In addition, the effects of rainfall duration/initial water content, density, slope angle, and surface layer thickness seem to be small on the decrease rate of normalized wave velocity with volumetric water content and tilt angle.

[1]  R H Young,et al.  Effects on groundwater. , 1972, Journal - Water Pollution Control Federation.

[2]  H. Takeuchi,et al.  Seismic Surface Waves , 1972 .

[3]  Peter K. Robertson,et al.  SHEAR-WAVE VELOCITY TO EVALUATE IN-SITU STATE OF OTTAWA SAND , 1995 .

[4]  L. Chien,et al.  LABORATORY AND FIELD SHEAR WAVE MEASUREMENT AT A RECLAIMED SITE IN WEST TAIWAN , 2000 .

[5]  W. F. Marcuson,et al.  Liquefaction Resistance of Soils: Summary Report from the 1996 NCEER and 1998 NCEER/NSF Workshops on Evaluation of Liquefaction Resistance of Soils , 2001 .

[6]  Kenneth H. Stokoe,et al.  LIQUEFACTION RESISTANCE OF SOILS : SUMMARY REPORT FROM THE 1996 NCEER AND 1998 NCEER / NSF WORKSHOPS ON EVALUATION OF LIQUEFACTION RESISTANCE OF SOILSa , 2001 .

[7]  P. P. Bartake,et al.  An Empirical Relationship for Determining Shear Wave Velocity in Granular Materials Accounting for Grain Morphology , 2009 .

[8]  E. A. Subaida,et al.  Standardization of Test Procedure for Tension Test on Coir Yarns and Woven Coir Geotextiles , 2009 .

[9]  Harianto Rahardjo,et al.  Effects of Groundwater Table Position and Soil Properties on Stability of Slope during Rainfall , 2010 .

[10]  Ikuo Towhata,et al.  Simple monitoring method for precaution of landslides watching tilting and water contents on slopes surface , 2010 .

[11]  M. Karray,et al.  Assessment of deep compaction of the Péribonka dam foundation using "modal analysis of surface waves" (MASW) , 2010 .

[12]  M. Karray,et al.  Influence of particle size on the correlation between shear wave velocity and cone tip resistance , 2011 .

[13]  T. Esaki,et al.  Rapid assessment of regional superficial landslide under heavy rainfall , 2012 .

[14]  Laurent Baillet,et al.  Shear‐wave velocity as an indicator for rheological changes in clay materials: Lessons from laboratory experiments , 2012 .

[15]  J. Kumar,et al.  Dynamic properties of sand from dry to fully saturated states , 2012 .

[16]  S. Donohue,et al.  Detection of soil compaction using seismic surface waves , 2013 .

[17]  Jun Yang,et al.  Laboratory measurements of small strain properties of dry sands by bender element , 2013 .

[18]  Jun Yang,et al.  Shear stiffness of granular material at small strains: does it depend on grain size? , 2013 .

[19]  M. R. Hakro,et al.  Laboratory experiments on rainfall-induced flowslide from pore pressure and moisture content measurements , 2015 .

[20]  K. Senetakis,et al.  Dynamics of potential fill–backfill material at very small strains , 2015 .

[21]  K. Stokoe,et al.  Field Testing Method for Evaluating the Small-Strain Shear Modulus and Shear Modulus Nonlinearity of Solid Waste , 2015 .

[22]  Ikuo Towhata,et al.  Precaution and early warning of surface failure of slopes using tilt sensors , 2015 .

[23]  Yulong Chen,et al.  Stability monitoring of soil slope in wetting and failure process using elastic wave velocity , 2016 .

[24]  E. Leong,et al.  Effects of Confining Pressure and Degree of Saturation on Wave Velocities of Soils , 2016 .

[25]  M. Ohrnberger,et al.  Shear wave velocity profile estimation by integrated analysis of active and passive seismic data from small aperture arrays , 2016 .

[26]  G. V. Ramana,et al.  Field and large scale laboratory studies on dynamic properties of emplaced municipal solid waste from two dump sites at Delhi, India , 2016 .

[27]  Mahmoud N. Hussien,et al.  Shear wave velocity as a geotechnical parameter: an overview , 2016 .

[28]  Taro Uchimura,et al.  Effects of soil deformation and saturation on elastic wave velocities in relation to prediction of rain-induced landslides , 2017 .

[29]  Taro Uchimura,et al.  Detection of water infiltration and deformation of unsaturated soils by elastic wave velocity , 2017, Landslides.

[30]  Ke Zhang,et al.  Feasibility of Using Elastic Wave Velocity Monitoring for Early Warning of Rainfall-Induced Slope Failure , 2018, Sensors.

[31]  Yulong Chen,et al.  A dynamic Bayesian network-based model for evaluating rainfall-induced landslides , 2019, Bulletin of Engineering Geology and the Environment.

[32]  Taro Uchimura,et al.  Elastic wave velocity monitoring as an emerging technique for rainfall-induced landslide prediction , 2018, Landslides.

[33]  Yulong Chen,et al.  Estimation of elastic wave velocity through unsaturated soil slope as function of water content and shear deformation , 2019 .

[34]  Yulong Chen,et al.  Development of elastic wave velocity threshold for rainfall-induced landslide prediction and early warning , 2019, Landslides.

[35]  J. Cui,et al.  Influence of Load Mode on Particle Crushing Characteristics of Silica Sand at High Stresses , 2020 .

[36]  Yulong Chen,et al.  Shear deformation and failure of unsaturated sandy soils in surface layers of slopes during rainwater infiltration , 2020 .