Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fissures generally exist in all of expansive soils. It always results in failure of expansive soil slope. Shear strength characteristics of fissure plane are studied and a new triaxial test method is recommended with typical expansive soil taken from Nanyang section of middle route of the South-to-North Water Transfer Project (SNWTP). The computed tomography technology is firstly introduced to shear strength test of fissure plane. The real failure stress of fissure plane is analyzed accurately through measurement of the fissure plane's real occurrence by CT scanning and shear strength parameters determined method is provided for triaxial test of fissure plane. The test results show that peak strength of fissure plane is much lower than that of bilateral expansive soil without fissures, and even smaller than residual strength of bilateral expansive soil without fissures. The reasons of these phenomena are that gray clay in fissures has higher water content, smectite content and particles orientation degree.
Fissures generally exist in all of expansive soils. It always results in failure of expansive soil slope. Shear strength characteristics of fissure plane are studied and a new triaxial test method is recommended with typical expansive soil taken from Nanyang section of middle route of the South-to-North Water Transfer Project (SNWTP). The computed tomography technology is firstly introduced to shear strength test of fissure plane. The real failure stress of fissure plane is analyzed accurately through measurement of the fissure plane's real occurrence by CT scanning and shear strength parameters determined method is provided for triaxial test of fissure plane. The test results show that peak strength of fissure plane is much lower than that of bilateral expansive soil without fissures, and even smaller than residual strength of bilateral expansive soil without fissures. The reasons of these phenomena are that gray clay in fissures has higher water content, smectite content and particles orientation degree.
Shear Strength Characteristic of Fissure Plane in Expansive Soil
Second International Conference on Geotechnical and Earthquake Engineering ; 2013 ; Chengdu, China
IACGE 2013 ; 324-333
09.10.2013
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Shear Strength Characteristics of Fissure Plane in Expansive Soil
| British Library Conference Proceedings | 2013
Study on shear strength and swelling-shrinkage characteristic of compacted expansive soil
| British Library Conference Proceedings | 2000
Shear Strength Behavior of Highly Expansive Soil
| ASCE | 2012
Shear Strength Behavior of Highly Expansive Soil
| British Library Conference Proceedings | 2012