摘要
目前,冻土最大动剪切模量随温度变化的规律仍缺乏统一、可靠的表达。文中对低温动三轴、超声波速测试和低温共振柱的试验结果进行文献调研,分类筛查得到21组试验数据,最终获得最大动剪切模量与温度关系的拟合方程。结果显示冻土最大动剪切模量随温度的降低而增加,可用线性方程拟合。
Currently,the law of maximum dynamic shear modulus of frozen soil changing with temperature still lacks uniform and reliable expression.The author conducted literature research on the data of the low-temperature dynamic triaxial test,ultrasonic velocity test and low-temperature resonance column test.After classification and screening,21 sets of data were obtained and finally fitted separately to obtain equations of the relationship between shear modulus and temperature.The results show that the maximum dynamic shear modulus of frozen soil increases with the decrease of temperature,which can be fitted by a linear equation.
作者
姜琦
王福彤
詹俊涛
JIANG Qi;WANG Futong;ZHAN Juntao(School of Civil Engineering,Heilongjiang University,Harbin 150080,China)
出处
《低温建筑技术》
2021年第7期123-126,共4页
Low Temperature Architecture Technology
基金
黑龙江省自然科学基金(E201221)。
关键词
冻土
动剪切模量
动三轴试验
超声波试验
共振柱试验
frozen soil
dynamic shear modulus
dynamic triaxial test
ultrasonic test
resonance column test
作者简介
姜琦(1995-),女,内蒙古呼伦贝尔市人,硕士,研究方向:岩土地震工程;通信作者:王福彤(1972-),男,黑龙江省七台河市人,博士,副教授,研究方向:岩土地震工程。
