| 土石混填路堤长期沉降测试与计算分析 |
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| 引用本文： | 段祝庚,陈晓斌.土石混填路堤长期沉降测试与计算分析[J].铁道科学与工程学报,2007,4(5):57-62. |
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| 作者姓名： | 段祝庚 陈晓斌 |
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| 作者单位： | 1. 中南林业科技大学,测绘科学与技术学院,湖南,长沙,410004
2. 中南大学,土木建筑学院,湖南,长沙,410075 |
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| 基金项目： | 湖南省交通科技项目(200413) |
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| 摘 要： | 采用FLAC5.0所提供的二次开发程序接口,编写了改进的Burgers流变模型实现程序,并将该流变模型数值程序嵌入FLAC5.0。采用FLAC5.0中改进的Burgers本构模型和确定的流变模型参数,对怀新高速公路K20 240红砂岩土石混填粗粒土高填路堤的流变沉降进行了计算。同时对路堤沉降进行了测量,并将数值计算结果与实测结果进行了对比,对比结果表明数值计算值与实测值比较吻合,验证了改进的Burgers流变模型及其参数的合理性。嵌入FLAC5.0改进的Burgers本构模型数值计算程序为土石混填粗粒土路堤长期沉降计算提供了参考工具。
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| 关 键 词： | 土石混填路堤 路堤沉降 改进的Burgers模型 |
| 文章编号： | 1672-7029（2007）05-0057-06 |
| 修稿时间： | 2007-05-07 |
Analysis on stone- earth fillings embankment's rehgological settlement surveying and calculation |
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| DUAN Zhu-geng,CHEN Xiao-bin.Analysis on stone- earth fillings embankment''''s rehgological settlement surveying and calculation[J].Journal of Railway Science and Engineering,2007,4(5):57-62. |
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| Authors: | DUAN Zhu-geng CHEN Xiao-bin |
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| Affiliation: | 1. Department of Surveying Engineering, Central South University of Forestry and Teehnology, Changsha 410004, China; 2. School of Civil and Architeetural Engineering, Central South University, Changsha 410075, China |
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| Abstract: | The modified Burgers model was encoded into numerical calculation and enclosed in FLAC5.0 by the advanced development implements of FLAC5.0.The K20 240 redstone granular soil fillings embankment's rheological settlement of Huaixin highway were calculated by modified Burgers model.At the same time,the K20 240 redstone granular soil fillings embankment's rheological settlement was surveyed.The calculated deformation data and surveyed deformation data were in comparison.The comparison results show that there is a good agreement between the calculated deformation values and surveyed deformation values.The modified Burgers model enclosed in FLAC5.0 and parameters in this model are resonanble,and this modified Burgers model enclosed in FLAC5.0 presents a referenced tool for the stone-earth fillings embankment's rehgological settlement calculation. |
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| Keywords: | redstone granular soil fillings embankment embankment rheological settlement modified Burgers model |
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