slaking caharacteresitc useful for further reserach.pdf
- 1. Introduction Dry and wet cycle Slaking is particle breakage, subjected to dry/wet cycle. Influenced by 1.Dry/wet cycle 2.Temperature Dry/wet cycle mudstone Particle breakage Void reduction Sever settlement along crust in Turkey (Cetin et al., 2000 ) Reduces permeability Increase shear deformation Increase water pressure Shear failure Tomei express way (Yasuda et al 2012) Reduce the shear strength Dam failure (Kiyota et al 2012) Increase the fine Increase water pressure Internal erosion (Sattar et al, 2011) Causes Causes Failures/disaster (Sakai et al 2019) Particle breakage Slaking material Being highly encountered and surplus material, usage of mudstone for earth structures is one feasible option (Yoshida et al., 2002) Mudstone structures commonly fail due to excessive settlement and shear failures. Kiyota et al (2011) observed eroded and washed-out particles in mudstone dam failure. Sattar et al (2011) suggested that failures could be occurred by internal erosion. 2
- 2. Brief Research motivation is to investigate changes of Root causes along the independent variants, and find the correlation between Root causes and its Consequences. Crushed mudstone under creep condition Applying dry/wet + temperature variation Particle breakage (Zhang,et al 2016) Void reduction (Nakano,et al 1998) Mechanical strength (Zhang,et al 2016) Internal erosion Lower PI Influence by slaking degree and stress condition Development of vertical strain/settlement/slope failures, causing several infrastructure failures. Malla et al.,(2007),Nakano.,(1967),Takagi et al.,(2007) Changning in particle breakage and void changing the internal erosion phenomena while increasing the hydraulic pressure, that was recorded by (Sattar et al., 2011) Consequences Root causes phenomena Independent variants State of Research-Slaking vs vertical strain/Breakage- Objective 3