| 隧道涌水长期记忆特性R/S与DFA法实证 |
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| 引用本文： | 安永林,彭立敏.隧道涌水长期记忆特性R/S与DFA法实证[J].地质与勘探,2009,45(1). |
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| 作者姓名： | 安永林 彭立敏 |
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| 作者单位： | 中南大学土木建筑学院,长沙,410075 |
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| 基金项目： | 铁道部科技研究开发计划课题(2005K002-D-3)资助 |
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| 摘 要： | 为了研究隧道涌水长期记忆特性,利用某隧道的涌水监测数据,基于R/S理论(重标极差方法)进行分析,并用Vn检验R/S分析的稳定性,进一步和DFA法(消除趋势波动法)分析的结果进行对比研究,同时,采用"正反划分法"对涌水数据进行处理以保证涌水序列信息不丢失,表明:隧道涌水的Hurst指数具有分时段和长期记忆特征,未来隧道涌水量将减少;负Hurst指数的出现可能与天气突变等因素有关,其代表隧道涌水具有反持续性;越大尺度的隧道涌水系统越具确定性特征;若隧道涌水监测数据具有波动离散性,采用DFA方法分析将优于R/S分析.研究结论可为隧道的涌水预测和涌水的非线性动力特性提供参考.
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| 关 键 词： | 隧道工程 涌水 R/S DFA Vn检验 |
Long-term Memory of Water Gush in Tunnel Based on R/S & DFA:A Case Study |
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| AN Yong-lin,PENG Li-min.Long-term Memory of Water Gush in Tunnel Based on R/S & DFA:A Case Study[J].Geology and Prospecting,2009,45(1). |
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| Authors: | AN Yong-lin PENG Li-min |
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| Institution: | College of Civil Engineering and Architecture;Central South University;Changsha 410075 |
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| Abstract: | R/S(Rescaled Range Analysis) was applied to study long-term memory of water gush in tunnel using monitoring data with the stability of R/S analysis checked by Vn.Furthermore,DFA was also used to research the long-term memory with data preprocessed by positive-negative division method for avoiding information loss.Results show that:(1) Hurst exponent of water gush in tunnel has a feature of long-term memory and divided periods,and water gush will reduce in future;(2) negative Hurst exponent may have a relati... |
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| Keywords: | tunnel engineering water gush R/S DFA Vn check method |
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