| 黏粒和砂粒混合土体的动态液化性能研究 |
| |
| 引用本文： | 唐小微,李涛,马玲,张西文.黏粒和砂粒混合土体的动态液化性能研究[J].西北地震学报,2015,37(1):6-10. |
| |
| 作者姓名： | 唐小微 李涛 马玲 张西文 |
| |
| 作者单位： | 大连理工大学 海岸和与近海工程国家重点实验室, 辽宁 大连 116023;大连理工大学 海岸和与近海工程国家重点实验室, 辽宁 大连 116023;大连理工大学 海岸和与近海工程国家重点实验室, 辽宁 大连 116023;大连理工大学 海岸和与近海工程国家重点实验室, 辽宁 大连 116023 |
| |
| 基金项目： | 国家自然科学基金项目(5107806);"九七三"国家重点基础研究发展计划项目(NO.2012CB013605-2) |
| |
| 摘 要： | 现场和实验室观测表明,一定黏粒含量的砂土在一定条件下易发生动力液化的现象,且黏粒含量对砂土抗液化性能的影响较为复杂。通过CKC全数字闭环控制气动式三轴仪试验系统,对黏粒含量为0%、5%和10%的砂土进行动力三轴试验。结果表明,黏粒含量为5%时砂土的抗液化性能最差,并且黏粒含量对于孔压的发展具有较大影响。根据实验数据的分析,对砂土-黏土的混合土的液化和抗液化性能进行机理分析。
|
| 关 键 词： | 黏粒含量 抗液化 动三轴试验 循环应力比 |
| 收稿时间： | 2014/8/20 0:00:00 |
Dynamic Liquefaction Properties of Sand-Clay Mixture |
| |
| TANG Xiao-wei,LI Tao,MA Ling and ZHANG Xi-wen.Dynamic Liquefaction Properties of Sand-Clay Mixture[J].Northwestern Seismological Journal,2015,37(1):6-10. |
| |
| Authors: | TANG Xiao-wei LI Tao MA Ling and ZHANG Xi-wen |
| |
| Institution: | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116023, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116023, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116023, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116023, China |
| |
| Abstract: | Field observations and laboratory studies indicate that sand with a certain amount clay can be easily dynamically liquefied under certain conditions and that the amount of clay has a complex impact on the liquefaction resistance of sand.Using a CKC dynamic tri-axial test system, the liquefaction resistance of sand samples with different clay content (0%, 5%, and 10%) was investigated.The results show that the sand sample with 5% clay had the lowest liquefaction resistance;the generation of pore water pressure is obviously effected by the clay content.The liquefaction mechanism of the sand-clay mixture is explained according to the experimental results. |
| |
| Keywords: | clay content anti-liquefaction dynamic tri-axial test cyclic stress ratio |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
|
