Abstract
The large-scale triaxial consolidated-drained (CD) and consolidated-undrained (CU) shear tests were carried out to investigate performances of the sericite quartz schist coarse-grained soil on stress-strain, deformation, and strength under four different confining pressure conditions. The test results indicated that the stress-strain curve of sericite quartz schist was nonlinearity, compressive hardening and elastic-plastic. The shear strength envelope curve was better. In the triaxial CD shear test, the sericite quartz schist exhibited weak strain softening under different confining pressures. The sample showed shearing shrinkage at first and later dilatancy under confining pressures of 200, 400, and 600 kPa. When the confining pressure was 800 kPa, the sample showed a trend of shearing shrinkage. In the triaxial CU shear test, the sericite quartz schist exhibited strain hardening, presenting a tendency of shearing shrinkage at first and later dilatancy. It is more reasonable to take account of the cohesion of sericite quartz schist in practical engineering design by linear-regression analysis.
Highlights
Coarse-grained soil is generally regarded as an earth-rock material with a particle size greater than 0.075 mm and a particle content exceeding 50% of the total mass
Coarse-grained soil is widely distributed in nature
It was found that coarse sand particles reaching 1 mm size occur on the surface of sand dunes, thereby affecting their shape and dynamics rich in reserves [1]
Summary
Coarse-grained soil is generally regarded as an earth-rock material with a particle size greater than 0.075 mm and a particle content exceeding 50% of the total mass. The large-scale triaxial consolidated-drained (CD) and consolidated-undrained (CU) shear tests were carried out to investigate performances of the sericite quartz schist coarsegrained soil on stress-strain, deformation, and strength under four different confining pressure conditions. In the triaxial CD shear test, the sericite quartz schist exhibited weak strain softening under different confining pressures.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
