摘要
振动三轴仪是室内土工试验中研究土体动力特性的重要仪器,但从以往的试验结果来看具有一定的离散性。这除了试验操作的人为误差外,振动三轴仪系统本身也会带来一定的误差,如双向动荷载的相位差不能达到预定值,系统本身的阻尼力,及试验数据的滞后性等等。为提高振动三轴试验的精确度,有必要对振动三轴试验的误差进行分析,找到误差的来源并进行相应的校正。
The dynamic triaxial apparatus is the more important and popular testing apparatus in researching the soil＇s dynamic properties. But the testing results are separate in some measure, which were caused by man made and the apparatus itself. For example, the phasic value of the bidirectional loads isn＇t the value given in advance, which will lead to some error. So are the resistance and the hysteresis quality of the testing data from the apparatus. In order to enhance the exactness of the testing result, it is very essential to analyze the cause of error and to present some proposals about its mending.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2006年第12期2261-2264,共4页
Rock and Soil Mechanics
关键词
土动力学
振动三轴
试验误差
soil dynamics
dynamic triaxial apparatus
testing error
