| 土石混填路堤基底坡度效应的数值模拟研究 |
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| 引用本文： | 马亢,徐进,符文熹,柴贺军.土石混填路堤基底坡度效应的数值模拟研究[J].交通科技与经济,2006(1):3-6. |
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| 作者姓名： | 马亢 徐进 符文熹 柴贺军 |
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| 作者单位： | 1. 四川大学水利水电学院,成都,610065
2. 重庆交通科研设计院,重庆,400067 |
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| 摘 要： | 在山区高速公路建设中,路堤多采用土石混合料填筑。结合西部某高速公路工程项目,对其红色碎屑岩类无粘性土石混填路堤进行数值模拟,着重研究路堤基底角度从0o变化到20o时路堤及基底附近的应力形变场特征及其变化规律。结果表明路堤内的最大沉降值和最大水平位移值随基底坡度的增大而减小,其位置逐渐升高,并逐渐向坡面靠近,而路堤内应力的分布受坡度的影响不明显。
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| 关 键 词： | 土石混填路堤 基底坡度 应力形变场 数值模拟 |
| 文章编号： | 1008-5696-（2006）01-0003-04 |
| 收稿时间： | 2005-08-26 |
| 修稿时间： | 2005年8月26日 |
A Numerical Simulation Study on the Effect of Bottom Gradient of Soil-Rock Mixture Embankment |
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| MA Kang,XU Jin,FU Wen-xi,CAI He-jun.A Numerical Simulation Study on the Effect of Bottom Gradient of Soil-Rock Mixture Embankment[J].Technology & Economy in Areas of Communications,2006(1):3-6. |
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| Authors: | MA Kang XU Jin FU Wen-xi CAI He-jun |
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| Abstract: | For the highway construction in mountain region, the embankment is usually filled with soil-rock mixture. Based on a practice in western country, it provides a numerical simulation to its embankment of red non-cohesive soil-rock mixture in order to study the characteristics and the developing law of stress-deformation field in embankment as well as the region near embankment bottom when bottom gradient changes from 0o to 20o. The result indicates that the maximum settlement and horizontal displacement become lower as bottom gradient goes steeper, and the site point in embankment ascends gradually and move towards slope face, while the distribution of stresses in embankment is hardly influenced by bottom gradient. |
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| Keywords: | soil-rock mixture embankment bottom gradient stress-deformation field numerical simulation |
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