| 弱震区土层对基岩峰值加速度放大效应的试验研究 |
| |
| 引用本文： | 周新民,路建波,徐平.弱震区土层对基岩峰值加速度放大效应的试验研究[J].西北地震学报,2015,37(4):952-955. |
| |
| 作者姓名： | 周新民 路建波 徐平 |
| |
| 作者单位： | 浙江省地震局, 浙江杭州 310013;浙江省地震局, 浙江杭州 310013;郑州大学交通运输工程系, 河南郑州 450002 |
| |
| 基金项目： | 国家自然科学基金项目(51008286,51278467);浙江省地震局支持立项课题 |
| |
| 摘 要： | 以人工爆炸波作为震源,通过现场试验获得基岩和土层场地爆炸波地震动时程,分析场地覆盖层厚度对基岩地震动峰值加速度和地震动持时的放大效应。试验结果表明:土层对基岩地震动有放大作用,基岩峰值加速度放大系数受覆盖层厚度和土层结构的共同作用影响;地震动持续时间随覆盖层厚度的增加而显著增加,受覆盖层土层结构影响不显著。
|
| 关 键 词： | 爆炸波 土层结构 峰值加速度 放大效应 |
| 收稿时间： | 2014/8/20 0:00:00 |
Experimental Study on the Amplification Effect of Bedrock PeakAcceleration Caused by the Soil Layer in a Weak Shock Region |
| |
| ZHOU Xin-min,LU Jian-bo and XU Ping.Experimental Study on the Amplification Effect of Bedrock PeakAcceleration Caused by the Soil Layer in a Weak Shock Region[J].Northwestern Seismological Journal,2015,37(4):952-955. |
| |
| Authors: | ZHOU Xin-min LU Jian-bo and XU Ping |
| |
| Institution: | Earthquake Administration of Zhejiang Province, Hangzhou 310013, Zhejiang, China;Earthquake Administration of Zhejiang Province, Hangzhou 310013, Zhejiang, China;Department of Transportation Engineering, Zhengzhou University, Zhengzhou 450002, Henan, China |
| |
| Abstract: | Using an artificial blast wave as the seismic source, the blast-induced ground motion time histories of both rock and soil sites were acquired by field experiments. The effects of soil layer amplification on peak ground acceleration and ground motion time histories were analyzed. The test results show that the soil layers amplify earthquake motion and that the amplification ratios are influenced by the depth and the construction of the soil layer. The depth of a soil layer has a large effect on the ground motion time history, but the construction does not. |
| |
| Keywords: | blast wave soil layer construction peak acceleration amplification effect |
| 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 |
|
