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《Technology of Highway and Transport》 2018-01
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Test Method of Foundation Stability of Suspension Fan in Expressway Tunnels

LIU Qi;ZHAO Weibin;LIU Songrong;HAN Kunlin;  
In order to solve the problem of lacking effective means to detect the foundation stability of suspended jet fans operating in expressway tunnels,a method to detect the foundation stability of suspended jet fans has been proposed based on impulse response.The pulse excitation was used to obtain the embedded foundation response signal while acquiring the excitation signal; the transfer function was used to determine the characteristics based on the embedded foundation itself unrelated to the input and output to eliminate the influence of the self-weight and the eccentricity of fans and other factors; then the embedded foundation transfer function was taken as input of stability identification model to obtain the recognition result.Through the test model,the foundation experiment of operating tunnel embedded fan and the undergoing tunnel test,this method has been proven to be effective.
【Fund】: 浙江省交通运输厅科研计划项目(2015Y06)
【CateGory Index】: U453.5
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