小应变三轴试验方法及其在上海软土的初步应用

陈超斌; 武朝军; 叶冠林; 王建华

doi:10.11779/CJGE2015S2008

小应变三轴试验方法及其在上海软土的初步应用 English Version

上海交通大学土木工程系,上海 200240

详细信息

作者简介:
陈超斌(1991- ),男,浙江宁波人,硕士研究生,主要从事软黏土力学特性、隧道的研究。

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出版历程
- 收稿日期: 2015-03-25
- 发布日期: 2015-07-24

Small-strain triaxial test method and its preliminary application in Shanghai soft clay

Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

摘要

摘要: 对软土小应变三轴测试方法进行了整理,对霍尔效应局部位移传感器、LVDT位移传感器、压电陶瓷弯曲元、共振柱仪等小应变刚度测试手段进行了梳理和总结。并利用安装有霍尔效应传感器的三轴仪对上海软土进行了试验,探讨霍尔效应传感器对于测试土体小应变特性的有效性,获得霍尔效应传感器能够得到土体在0.01%~0.1%小应变范围内的弹性模量的结论,并建议今后结合运用LVDT传感器和弯曲元进一步测试土体在应变0.001%~0.01%范围内的特性。
- 小应变 /
- 霍尔效应传感器 /
- LVDT传感器 /
- 弯曲元 /
- 上海软土
Abstract: The methods of small-strain triaxial tests on soft clay are collated and summarized, including those using Hall-effect sensors, LVDT, bender elements and resonant columns. To discuss the effectiveness of the Hall-effect sensors on getting clay property in small strain, the triaxial tests with the Hall-effect sensors are performed on Shanghai soft clay. A conclusion is drawn that the elastic modulus of clay in small strain (0.01%~0.1%) can be measured by using the Hall-effect sensors. Finally, it is advised that the LVDT and bender elements should be applied in measuring clay property in smaller strain (0.001%~ 0.01%).
- small strain /
- Hall-effect sensor /
- LVDT sensor /
- bender element /
- Shanghai soft clay

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参考文献(12)

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