Influence of Humidity on Yield Stress Determination by Slump Test of Slip-Prone Clayey Soils and Their Relation with the Chemical Properties.
In this work,the yield stress evaluation as a function of water content for slip-prone clayey soils is studied in order to understand how yield stress decreases as water content increases,and their relation with the chemical properties.The clayey soil samples were taken from the region of Teziutlán-Puebla-Mexico.Yield stress was calculated using the slump test in cylindrical geometry.Results show three zones.The first one shows an exponential decrement on yield stress due to lower water content in accord with clayey soils with high content of illita,followed by a second region where yield stress decreases dramatically at a certain critical water concentration,and the third one where yield stress dependence is not well-defined since the clayey soil flow is seen.Finally,it is discussed how yield stress variation due to the water increment influences the landslide risk increment.
Clayey Soil Yield Stress Slump Test Microstructure illita
Arturo F.Méndez-Sáinchez Ana M.Paniagua-Mercado Karen E.Nieto-Zepeda Leonor Pérez-Trejo Elvia Diaz Valdés Concepción Mej(i)a Garc(i)a
Escuela Superior de Fisica y Matemáticas, Instituto Politécnico Nacional, Edif.9 Unidad Profesional Adolfo López Mateos, Col.Lindavista, C.P.07738, México D.F., México
国际会议
北京
英文
102-105
2012-10-26（万方平台首次上网日期，不代表论文的发表时间）