| 软土路基分级加载沉降预测模型及应用 |
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| 引用本文： | 张子培,胡毅夫.软土路基分级加载沉降预测模型及应用[J].中南公路工程,2006,31(3):22-25. |
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| 作者姓名： | 张子培 胡毅夫 |
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| 作者单位： | [1]湖南省张家界市公路局,湖南张家界427000 [2]中南大学资源与安全学院,湖南长沙410083 |
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| 摘 要： | 沉降量和沉降速率控制是路堤工程设计的关键性问题.由于固结理论的局限性和参数的不确定性,理论预测的精度较低,而基于现场实测资料的观测法显示出较高的精度,但是现有的大多数计算方法只能适用于一级荷载下沉降预测.在灰色理论的基础上发展了一种预测地基分级加载沉降预测的方法,结合某拓宽改造工程实例进行了沉降预测分析.
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| 关 键 词： | 软土路基 分级加载 平均斜率 沉降预测 |
| 文章编号： | 1002-1205(2006)03-0022-04 |
| 收稿时间： | 2006-03-21 |
| 修稿时间： | 2006年3月21日 |
Settlement Prediction Model for Soft Clay Roadbed Step Load |
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| ZHANG Zipei, HU Yifu.Settlement Prediction Model for Soft Clay Roadbed Step Load[J].Central South Highway Engineering,2006,31(3):22-25. |
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| Authors: | ZHANG Zipei HU Yifu |
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| Institution: | 1. The management station of the highway in Zhangjiajie city, zhangjiajie 427000, China; 2. School of Resources and Safety Engineering, Central South University, Changsha 410083, China |
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| Abstract: | settlement and stability are two primary considerations systematically related to the design of an embankment on soft ground. The observational methods based on field measurement have indicated the promising results and become effective methods to predict the final settlement, while the uncertainties and theories limit significantly the accuracy of settlement estimation. This paper presents an observation method to predict the settlement performance of embankments with stage construction on soft ground based on Grey theory. The case studies of an old road showed that the improved Grey model has high prediction precision. |
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| Keywords: | soft clay roadbed step load average slope settlement prediction |
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