| 康定机场高填方地基变形与稳定性数值模拟 |
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| 引用本文： | 陈阳,杜刚,高奋飞.康定机场高填方地基变形与稳定性数值模拟[J].路基工程,2011,0(2):111-114. |
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| 作者姓名： | 陈阳 杜刚 高奋飞 |
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| 作者单位： | 1.北京中企建华国际工程项目管理有限责任公司, 北京 100621 |
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| 摘 要： | 康定机场海拔4280m,是世界第二高海拔、高填方机场,填方填料为冰碛土,具有块石含量大、级配差、结构复杂、力学特征差异性大等特点。采用数值模拟方法对机场高填方地基变形与稳定性进行了模拟分析,结果表明:高填方坡脚最大水平位移0.10m,填方体稳定性好,道槽区最大沉降0.85m,底部地基沉降0.35m;土面区最大沉降1.25m,底部地基沉降0.30m,均满足工程设计要求。
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| 关 键 词： | 冰碛土 高填方地基 变形 稳定性 数值模拟 |
| 收稿时间： | 2019-11-10 |
Numerical Simulation on Deformation and Stability of High Embankment of Kangding Airport |
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| Authors: | CHEN Yang DU Gang GAO Fen-fei |
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| Institution: | 1.Beijing Senior International Engineering Project Management Co.,Ltd.,Beijing 100621,China;2.CECD Supervision ＆ Consulting Co.,Ltd.,Beijing 100621,China;3.Key Laboratory of Karst Environment and Geological Hazard Prevention of Ministryof Education,Guizhou University,Guiyang 550003,China) |
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| Abstract: | Kangding airport is the second high-filled airport with 4 280 m elevation.The high embankment is filled with moraine soil with the characteristics of high content of block stone,poor graduation,complicated structure and large differences in mechanical properties.In this paper,the deformation and stability of the high embankment is analyzed in details by numerical simulation.The result shows that the high embankment is in stable with no more than 0.10 m horizontal displacement at the toe of slope.The total maximum settlement under the runway is 0.85 m and the bottom ground settlement is 0.35 m.The total maximum settlement in the lawn is 1.25 m and the bottom ground settlement is 0.3 m.These all meet the requirements of the engineering design. |
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| Keywords: | moraine soil high embankment deformation stability numerical simulation |
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