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| 西藏米林机场场地工程地震条件和地震砂土液化可能性评价 | |
| 引用本文： | 曹忠权,苏楠,申旭辉,谢平,金花.西藏米林机场场地工程地震条件和地震砂土液化可能性评价[J].地球物理学进展,2004,19(3):703-708. |
| 作者姓名： | 曹忠权 苏楠 申旭辉 谢平 金花 |
| 作者单位： | 1. 西藏自治区地震局,拉萨,850000 2. 北京城建房地产开发有限公司,北京,100029 3. 中国地震局地震预测研究所,北京,100036 |
| 摘 要： | 米林机场拟建场地位于藏东南地区雅鲁藏布江深切谷地内T1和T2阶地上，为Ⅱ类建筑场地，地震基本烈度为8度．根据地震地质灾害发生的重复性特征，未来米林机场建设场地不排除再次发生砂土液化破坏的可能．砂土颗粒级配分析以及土层剪切波速测试结果也支持这一结果．考虑到场地周围地下水埋藏特点，判断该场地砂土液化深度不会太深，主要发生部位应该在雅鲁藏布江一级阶地及其相当地貌部位。 |
| 关 键 词： | 西藏 米林机场 地震 砂土液化 |
| 文章编号： | 1004-2903(2004)03-0703-06 |
| 修稿时间： | 2004年7月10日 |
Evaluation of the engineering seismological condition and sand liquefaction at Milin airport, Tibet |
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| CAO Zhong-quan.Evaluation of the engineering seismological condition and sand liquefaction at Milin airport, Tibet[J].Progress in Geophysics,2004,19(3):703-708. | |
| Authors: | CAO Zhong-quan |
| Institution: | CAO Zhong-quan~ |
| Abstract: | The constructive Site of Milin Airport is located at the 1~(st) and 2~(nd) terraces of Yaluzangbu (Brahmaputra) River, Southeastern Tibet, where the seismic basic intensity is eight degree. In this paper, we interpretation that there maybe occurred sand liquefaction around the site in the future Based on the re-occurred characteristic of seismogeological hazard, as well as the analysis of sandy-grain distribution and velocity of shear wave of soil layers. And the point of sand liquefaction may locate at the 1~(st) terrace. |
| Keywords: | Tibet Milin airport earthquake sand liquefaction |
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