单指标尾矿坝失稳特征提取方法
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摘要
针对目前尾矿坝溃坝事故高发率,即尾矿坝失稳现象严重的问题。由于尾矿坝监测信息特征存在模糊、随机、不完全等不确定性,为提取准确参数,提出了一种可能性特征参数与神经网络法相结合的失稳特征提取方法,以提取失稳特征,即描述尾矿坝动态变化的特征参数。首先在对来自传感器的数据进行可能性处理的基础上,引入新的特征参数可能性变化率、可能性歪度、可能性峭度,然后利用神经网络法研究特征参数对风险状态变化的灵敏程度,从中可提取坝体的失稳特征。最后通过实例说明:使用改进方法提取的失稳特征计算坝体稳定性运行状态得出的结果更切合实际、更具有合理性。
This paper came up with a new instability extraction method based on neural network combined with possibility feature parameters to extract instability feature which describes the tailing dam dynamic changes.First,on the basis of the possibility processing of data from sensor,we introduced the possibility rate,possibility skewness and possibility kurtosis of the new characteristic parameters,then we extracted feature parameters through researching the sensitivity of feature parameters with the dam risk status changing by neural network method.Experiments prove that the result is more practical and more reasonable to calculate dam stability using instability feature from the new method.
This paper came up with a new instability extraction method based on neural network combined with possibility feature parameters to extract instability feature which describes the tailing dam dynamic changes.First,on the basis of the possibility processing of data from sensor,we introduced the possibility rate,possibility skewness and possibility kurtosis of the new characteristic parameters,then we extracted feature parameters through researching the sensitivity of feature parameters with the dam risk status changing by neural network method.Experiments prove that the result is more practical and more reasonable to calculate dam stability using instability feature from the new method.
引文
[1]王飞跃.基于不确定性理论的尾矿坝稳定性分析及综合评价研究[D].中南大学,2009.
[2]D P Kanungo,et.al.Landslide Risk Assessment Using Concepts ofDanger Pixels and Fuzzy Set Theory in Darjeeling Himalayas[J].Landslides,2008,5(4):407-416.
[3]蔡嗣经,张栋,吴宗之.尾矿库地震溃坝模糊风险评估方法探讨[J].中国安全生产技术,2011,7(7):10-14.
[4]D Dubois,H Prade.Possibility Theory[M].New York:PlenumPress,1988.
[5]周福娜.基于统计特征提取的多故障诊断方法及其应用研究[D].上海海事大学博士学位论文,2009.
[6]佟欣.基于可能性理论的模糊可靠性设计[D].大连理工大学,2004.
[7]S S Appadoo,S K Bhatt,C R Bector.Application of possibilitytheory to investment decisions[J].Fuzzy Optim Decis Making,2008,7(1):35-57.
[8]C Carlsson,R Fuller.On Possibility Mean Value and Variance ofFuzzy Numbers[J].Fuzzy Sets and Systems,2001,122(2):315-326.
[9]康永军,杨军,宋二祥.地震作用下边坡安全系数时程计算及参数研究[J].岩土力学,2011,1(32):261-268.
[10]刘中华.故障特征提取的方法研究[J].电子技术应用,2004,11:19-21.
[11]张从力,张河翔.信息融合技术在煤矿安全预测中的应用[J].计算机仿真,2012,29(5):201-205.
[2]D P Kanungo,et.al.Landslide Risk Assessment Using Concepts ofDanger Pixels and Fuzzy Set Theory in Darjeeling Himalayas[J].Landslides,2008,5(4):407-416.
[3]蔡嗣经,张栋,吴宗之.尾矿库地震溃坝模糊风险评估方法探讨[J].中国安全生产技术,2011,7(7):10-14.
[4]D Dubois,H Prade.Possibility Theory[M].New York:PlenumPress,1988.
[5]周福娜.基于统计特征提取的多故障诊断方法及其应用研究[D].上海海事大学博士学位论文,2009.
[6]佟欣.基于可能性理论的模糊可靠性设计[D].大连理工大学,2004.
[7]S S Appadoo,S K Bhatt,C R Bector.Application of possibilitytheory to investment decisions[J].Fuzzy Optim Decis Making,2008,7(1):35-57.
[8]C Carlsson,R Fuller.On Possibility Mean Value and Variance ofFuzzy Numbers[J].Fuzzy Sets and Systems,2001,122(2):315-326.
[9]康永军,杨军,宋二祥.地震作用下边坡安全系数时程计算及参数研究[J].岩土力学,2011,1(32):261-268.
[10]刘中华.故障特征提取的方法研究[J].电子技术应用,2004,11:19-21.
[11]张从力,张河翔.信息融合技术在煤矿安全预测中的应用[J].计算机仿真,2012,29(5):201-205.
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