| 深基坑开挖变形的灰色马尔科夫链预测方法 |
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| 引用本文： | 黄传胜,张家生.深基坑开挖变形的灰色马尔科夫链预测方法[J].铁道科学与工程学报,2011(2):71-75. |
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| 作者姓名： | 黄传胜 张家生 |
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| 作者单位： | 中南大学土木建筑学院;江西中昌工程咨询监理有限公司; |
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| 摘 要： | 基于灰色马尔科夫链理论,提出了深基坑开挖变形灰色马尔科夫链预测方法,建立了用于变形预测的新陈代谢GM(1,1)模型和灰色马尔科夫链模型.研究结果表明:这2种模型的预测精度都可以满足施工期预测要求,灰色马尔科夫链模型的各项指标均优于新陈代谢GM(1,1)模型.该结果对同类研究具有一定参考价值.
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| 关 键 词： | 深基坑变形 预测方法 灰色马尔科夫链 |
Forecasting model of deep foundation pits deformation based on grey markov chain theory |
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| HUANG Chuan-sheng,ZHANG Jia-sheng.Forecasting model of deep foundation pits deformation based on grey markov chain theory[J].Journal of Railway Science and Engineering,2011(2):71-75. |
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| Authors: | HUANG Chuan-sheng ZHANG Jia-sheng |
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| Institution: | HUANG Chuan-sheng1,2,ZHANG Jia-sheng1(1.School of Civil Engineering and Architecture,Central South University,Changsha 410075 China,2.Jiangxi Zhongchang Construction Works Consulting and Supervision Co Ltd,Nanchang 330002 China) |
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| Abstract: | Based on the excavation of deep foundation pit of Yantang station in Guangzhou subway,a three-dimensional finite element model was established,and the construction process was simulated in three-dimension.The size effect of model's dimension including plane size and depth on the deformation of the deep foundation pit was analyzed,and a method to determine the reasonable size of the finite element model was proposed.The result shows that the model's size effect can be roughly eliminated while the deep founda... |
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| Keywords: | deep foundation pits in subway three-dimensional finite element model size effect |
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