- 摘 要
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蔡 靖 王建華?。ㄌ旖虼髮W(xué)建工學(xué)院巖土工程研究所 300072）張獻(xiàn)民?。ㄖ袊裼煤娇諏W(xué)院 天津 300060）
[提要] 利用系統(tǒng)分析原理，從s域?qū)锻料到y(tǒng)進(jìn)行分析，得到系統(tǒng)傳遞函數(shù)、速度導(dǎo)納響應(yīng)函數(shù)。從缺陷樁的樁土系統(tǒng)參數(shù)模型出發(fā)，推導(dǎo)出缺陷樁速度導(dǎo)納響應(yīng)模型，研制了Matlab分析計算軟件，得到缺陷樁的速度導(dǎo)納曲線存在大峰夾小峰的特征，提出了一種直觀的判斷基樁完整性的方法。根據(jù)這一特征，得到小峰與大峰之比與缺陷程度之間的關(guān)系曲線，提出利用導(dǎo)納曲線進(jìn)行缺陷量化分析。
[關(guān)鍵詞] 導(dǎo)納響應(yīng) 系統(tǒng)分析 傳遞函數(shù) 量化分析With the system analysis theory, transfer function and velocity mobility response in s domain are deduced. According to the pile-soil parameter model, the mobility of concrete defective pile is gained, and based on it,a program of Matlab language is worked out to simulate mobility response of a defective pile.A simple method is provided to determine the integrity of the shaft. The relation between ratio of peaks and degree of defect is worked out, then a method of quantity analysis in frequency domain is proposed.
Keywords: conductance response; system analysis; transfer function; quantity analysis參 考 文 獻(xiàn)
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