摘要
采用GDS静三轴仪,对饱和花岗岩残积土重塑样进行了常规三轴固结排水试验,并基于三维离散元软件YADE,建立了三轴压缩试验模型,分析了花岗岩残积土的剪切特性,结果表明:在各固结围压下,饱和花岗岩残积土重塑样的应力应变曲线都表现为应变硬化,体变曲线表现出明显的剪缩性,而且随着围压的增大,试样的峰值强度增大,剪缩的程度提高。
Applying GDS static tri-axial instrument,the paper carries out conventional tri-axial consolidation drainage test for the saturated granite residual-soil remolded sample. Based on three-dimensional DEX software YADE,it establishes tri-axial compression testing model,and analyzes shearing characteristics of granite residual-soil. Results show that： under consolidated confining pressure,the stress strain curve of saturated granite residual-soil remolded sample tends to the strain hardening,the volume deformation curve tends to be obvious shear shrinkaging,with the confining pressure increasing,the peak intensity of samples is increased,and the shear shrinkage strength is improved.
出处
《山西建筑》
2017年第2期82-83,共2页
Shanxi Architecture
关键词
花岗岩残积土
三轴试验
离散元
剪切力
granite residual-soil
tri-axial test
DEM（Discrete Element Model）
shearing force
作者简介
刘文辉（1991-）,男,在读硕士;
何勇彬（1988-）,男,工程师
