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。
Based on the grey markov chain theory, a gray markov chain forecasting method to calculate excavation deformation of deep foundation pits was proposed and two deformation forecasting models were built which are metabolism GM （l, 1 ） model and gray markov chain model. The results show that the calculation accuracy of these two models can satisfy the forecasting requirements of construction. Every index calculated from Markov chain models is superior to that calculated from metabolism GM （ 1, 1 ） model. The results haw： certain reference value for similar researches.
出处
《铁道科学与工程学报》
CAS
CSCD
2011年第2期71-75,共5页
Journal of Railway Science and Engineering
关键词
深基坑变形
预测方法
灰色马尔科夫链
deep foundation pit deformation
forecasting method
grey Markov chain theory
