Journal of Northeast Agriultural University(English Edition)

2019, v.26;No.77(04) 86-96

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Remote Monitoring and Early Warning Model of Frozen Soil in Dam Areas
Remote Monitoring and Early Warning Model of Frozen Soil in Dam Areas

Zhang Xue-jiao;Sun Hong-min;Dong Yuan;Hu Zhen-nan;

摘要(Abstract):

In view of the cumbersome and often untimely process of manual collection and observation of frozen soil data parameters, and the damage caused to dams by frost heaving of frozen soil, a remote monitoring and an early warning model for frozen soil in dam areas was presented.The Pt100 temperature sensors and JM seam gauges were used as measurement tools in the system.The sensor layout was designed, based on the actual situation in the monitoring area.A 4 G network was used for wireless transmission to monitor frozen soil data in real time.BP neural network was used to predict the parameters of frozen soil.After analysis, four factors including the average temperature of frozen soil, the type of frozen soil, the artificial upper limit of frozen soil and the building construction time were selected to establish an early warning model using fuzzy reasoning.The experimental results showed that the early warning model could reflect the influence on dam buildings of frost heaving and sinking of frozen soil, and provided technical support for predicting the hazard level.

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基金项目(Foundation): Supported by the Application Technology Research and Development Plan Project of Heilongjiang Province(GY2014ZB0011);; the 13th Five-year National Key R&D Program(2016YFD0300610)

作者(Author): Zhang Xue-jiao;Sun Hong-min;Dong Yuan;Hu Zhen-nan;

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