摘要
结合压电陶瓷弯曲元动测技术 ,对杭州砂进行控制剪切波速的动三轴试验 ,验证了砂土抗液化强度与弹性剪切模量间的相关性。试验结果表明 ,土体抗液化强度与其剪切模量的平方成线性关系 ,这使得结合剪切波速测试的动三轴试验研究土体液化更为简单、有效。根据研究实例 ,提出了进行液化判别的一般步骤 。
Relativity between liquefaction strength and elastic shea r modulus of sand soil was verified by triaxial dynamic test controlling velocity of shear wave combined with dynamic test technique on piezoelectric ceramic flex ural element.It was shown by test that relationship between liquefaction strengt h and elastic shear modulus of soil body is linear,so that investigation on liqu efaction of soil body could be simpler and more efficient by triaxial dynamic te st measuring velocity of shear wave.Based on tested examples,the general process for distinguishing liquefaction of soil body was proposed and rationality and s uperiority there of were explained as well.
出处
《土木工程学报》
EI
CSCD
北大核心
2004年第9期48-54,共7页
China Civil Engineering Journal
关键词
砂土液化
剪切模量
动态三轴测试
弯曲元
liquefaction
shear modulus
triaxial dynamic test
fle xural element
