摘要
试验材料采用原料场颗粒级配进行缩尺制备,通过三轴试验对试样抗剪强度指标进行对比分析,得到同一种粗粒料相同围压下,最大主应力比随着试验方法固结排水剪(CD)、固结不排水剪(CU)、不固结不排水剪(UU)的变化而减小,内摩擦角也随之减小的变化规律,证明了同一种粗粒料在不同实验方法下,总应力强度线及强度指标φCD>φCU>φUU的变化规律。
The objective of the study was to conduct the comparative analysis on shear strength of the test samples by triaxial test, the test materials were prepared with the particle size distribution in the field of raw materials by a reduced scale. Under the same confining pressure of the same coarse materials, the change of the maximum principal stress ratio was reduced with the CD,CU,UU changes with which the internal friction angle also was reduced which indicated the change law of the same coarse materials under different test methods, the change law of the total stress intensity lines and the strength indexφCD〉φCU〉φUU.
出处
《新疆农业大学学报》
CAS
北大核心
2009年第4期69-72,共4页
Journal of Xinjiang Agricultural University
基金
新疆水利水电工程重点学科基金项目(xjzdsk-2002-10-05)
关键词
粗粒料
抗剪强度
参数指标
三轴试验
coarse materials
shear strength
parameter index
triaxial test
