摘要
利用自行设计的室内土样剪切波速简便试验装置与测试方法对土样进行不同应力条件下剪切波速的测试.研究表明:剪切波速与土体的密度具有良好的相关性;剪切波速随含水量(大于20%)的减小而增大;当应力≤300 kPa时,剪切波速随压力的增大而大幅增值;应力>300kPa时,剪切波速增长缓慢.
The shear wave velocity of soil samples are tested under stress condition by using a self-made indoor ultrasonic wave test facility and operational procedure. The results show that the shear wave velocity is related strongly to the density of soil. The shear wave velocity increases with the decrease of water content （ 〉 20% ）. When the stress is less than or equal to 300 kPa, the shear wave velocity increases a lot with the increase of the pressure. It increases a little when the stress is more than 300 kPa.
出处
《桂林工学院学报》
CAS
北大核心
2007年第3期355-358,共4页
Journal of Guilin University of Technology
基金
教育部科技研究重点项目(教技司[2003]77)
广西自然科学基金资助项目(桂科自0447001)
广西水利厅科技专项(桂水科合字[2004]4)
关键词
土体剪切波速
超声波
应力
密度
含水量
soil mass
shear wave velocity
ultrasonic wave
stress
density
moisture content
