冻结粘土纵、横波速与温度的关系  

RESEARCH ON RELATIONSHIP AMONG LONGITUDINAL AND TRANSVERSE WAVE VELOCITIES AND TEMPERATURE OF ARTIFICIALLY FROZEN CLAY

作　　者：马芹永[1] 彭万巍[2] 朱元林[2] 

机构地区：[1]淮南工业学院土木工程系,淮南232001 [2]中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,兰州730000

出　　处：《岩石力学与工程学报》2002年第2期290-293,共4页Chinese Journal of Rock Mechanics and Engineering

基　　金：中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室资助项目(9721)。

摘　　要：用ＵＶＭ－２型声波仪和５００ ｋＨｚ宽带超声换能器实测了在－１℃，－３℃，－５℃，－７℃，－１０℃，－１２℃，－１５℃，－１７℃及－１８℃等９个不同温度下冻结粘土的纵、横波速，对试验数据进行了分析，结果表明，冻结粘上的纵、横波速度随温度的降低而增大，当温度从０℃降至－４℃时，波速与温度呈线性关系，随着温度的继续降低，波速增加减慢。结合弹性理论，求出了冻结粘土的弹性模量及泊松比。The longitudinal and transverse wave velocities of frozen clays are measured by UVM-2 ultrasonic instrument and 500 kHz broadband ultrasonic transducer at the temperature of -1℃,-3℃,-5℃,-7℃,-10℃,-12℃,-15℃,-17℃and -18℃. As indicated by the results, the lower the temperature is, the greater the wave velocity is. At the temperature higher than -4℃, the relationship between wave velocity and temperature is linear. At the temperature about -17℃, the increment of wave velocity is very small. The relationship between the wave velocity and temperature is analyzed theoretically. By means of elasticity theory, elastic modulus and Poisson's ratio are calculatied.

关 键 词：冻结 粘土 纵波速度 横波速度 试验 温度 

分 类 号：TU445[建筑科学—岩土工程]