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| 饱和粉土液化特性的大型振动台模型试验研究 | |
| 引用本文： | 景立平,姚运生,郑志华.饱和粉土液化特性的大型振动台模型试验研究[J].地震工程与工程振动,2007,27(6):160-165. |
| 作者姓名： | 景立平 姚运生 郑志华 |
| 作者单位： | 1. 中国地震局,工程力学研究所,黑龙江,哈尔滨,150080;中国地震局,地球物理研究所,北京,100081 2. 中国地震局,地震研究所,湖北,武汉,430071 3. 中国地震局,工程力学研究所,黑龙江,哈尔滨,150080 |
| 基金项目： | 铁道部科技发展基金项目(2002G002(B)) |
| 摘 要： | 京沪高速铁路徐沪段路基的粉土粘粒含量少于1.5%、粉粒含量约为80%,在强烈地震作用下存在着液化可能性.为充分研究这一饱和粉土地层的液化特性,本文作者利用大型地震模拟振动台,进行了模拟自由场地饱和粉土的地震液化模型试验,试验结果再现了自然地震触发的粉土液化的各种宏观震害现象,揭示了饱和粉土的地震液化规律和特征。试验结果为京沪高速铁路徐沪段路基的抗震设计提供了参考依据。 |
| 关 键 词： | 粉土 地震液化 振动台模型试验 |
| 文章编号： | 1000-1301（2007）06-0160-06 |
| 收稿时间： | 2007-05-16 |
| 修稿时间： | 2007-08-22 |
Large scale shaking table test study on liquefaction of saturated silty soil |
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| JING Liping,YAO Yunsheng,ZHENG Zhihua.Large scale shaking table test study on liquefaction of saturated silty soil[J].Earthquake Engineering and Engineering Vibration,2007,27(6):160-165. | |
| Authors: | JING Liping YAO Yunsheng ZHENG Zhihua |
| Abstract: | This paper presents the study results of large scale shaking table tests on liquefaction of saturated silty soil.The contents of clay grains and fine silt grains are approximate to 1.5% and 80%,respectively,in the saturated silty soil layer under the roadbed of Xuzhou-Shanghai section of the prospected Beijing-Shanghai high speed railway.In order to study the potential hazard of liquefaction of such silty layer under strong earthquake loadings,free field large scale shaking table model tests were carried out to investigate the liquefaction behavior of the saturated silty soil.The experimental results approximately showed several macroscopic phenomena and characteristics of site liquefaction under earthquake loadings,and the dynamic behavior of saturated silt.The test results provide an efficient reference for the seismic design of railway roadbeds when the liquefaction of saturated silty soil is taken into account. |
| Keywords: | silty soil liquefaction shaking table test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |