| 扎囊大桥桥址地区砂土液化问题研究 |
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| 引用本文： | 李建文,唐咸远.扎囊大桥桥址地区砂土液化问题研究[J].路基工程,2013,0(5):39-43. |
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| 作者姓名： | 李建文 唐咸远 |
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| 作者单位： | 1.中交第二公路勘察设计研究院有限公司， 武汉 430056 |
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| 基金项目： | 广西科技攻关项目，广西交通科技项目 |
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| 摘 要： | 以西藏扎囊大桥工程为例，在通过勘察、测试等手段掌握大量数据的基础上，对在建西藏山南地区雅鲁藏布江扎囊大桥桥址地区的砂土液化问题进行了研究。其结果表明:桥址区地基土的上、中部是饱和砂土层，其液化指数高达3762～11077，均远大于18，液化等级判定为严重；勘察探明，地基土下部为中密圆砾，承载力高，可作桥基基础持力层。
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| 关 键 词： | 扎囊大桥工程 饱和砂土 地震液化 勘察 测试 |
| 收稿时间： | 2018-06-23 |
Study on Sand Liquefaction in the Site of Zhanang Bridge |
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| Authors: | LI Jianwen TANG Xianyuan |
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| Abstract: | Taking the Zhanang Bridge Project in Tibet as an example, this paper, based on large amount of data obtained by way of survey and test, studied the sand liquefaction in the site of Zhanang Bridge on the Yarlung Zangbo River in the south mountainous area in Tibet. The result shows that the upper and middle part of the foundation soil in the site is saturated sand layer, with the liquefaction index up to 37.62～110.77 and far more than 18, thus the grade of liquefaction is judged as serious; and by surveys, the lower part of the foundation soil is proved to be medium-density cobble with high bearing capacity and may be used as the bearing layer for the bridge foundation. |
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| Keywords: | Zhanang Bridge Project saturated sand seismic liquefaction survey test |
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