本文選題：海岸軟土 + 樁-土作用��； 參考：《水運(yùn)工程》2017年12期

【摘要】：樁基礎(chǔ)是高樁碼頭整體結(jié)構(gòu)受力的關(guān)鍵。通過(guò)建立樁-土的理論受力模型,對(duì)樁體、土體及其相互作用進(jìn)行理論分析,采用傅里葉級(jí)數(shù)收斂法對(duì)對(duì)稱(chēng)的模型進(jìn)行求逆簡(jiǎn)化,為計(jì)算機(jī)求解給定方向。在ANSYS有限元分析軟件中通過(guò)APDL語(yǔ)言對(duì)樁-土相互作用模型進(jìn)行編程化建模和加載,計(jì)算后得出樁體、土體的整體變形規(guī)律和樁側(cè)摩阻隨樁深的變化規(guī)律,將模型計(jì)算結(jié)果與現(xiàn)有的試驗(yàn)結(jié)論進(jìn)行分析對(duì)比。結(jié)果表明:傅里葉級(jí)數(shù)收斂法在對(duì)稱(chēng)模型剛度矩陣求逆過(guò)程中可以將許多元素變?yōu)榱?以增加計(jì)算機(jī)的計(jì)算效率;樁體、土體的整體位移在不同荷載作用下發(fā)生微小差異,樁土摩擦阻力呈分段線(xiàn)性分布,其中在入土深度32 m處應(yīng)力達(dá)到最大值,在工程中應(yīng)對(duì)該處布置更多縱向持力鋼筋。
[Abstract]:Pile foundation is the key to stress on the whole structure of high pile wharf.The theoretical stress model of pile-soil is established, and the pile body, soil mass and their interaction are analyzed theoretically. The Fourier series convergence method is used to inverse simplify the symmetric model and to solve the given direction for the computer.In the finite element analysis software of ANSYS, the pile-soil interaction model is modeled and loaded programmatically by APDL language, and the integral deformation law of pile body and soil mass and the variation law of pile side friction with pile depth are obtained by calculation.The model results are analyzed and compared with the existing experimental results.The results show that the Fourier series convergence method can change many elements to zero in the inverse of the stiffness matrix of the symmetric model, in order to increase the computational efficiency of the computer, and the global displacement of the pile and the soil is slightly different under different loads.The friction resistance of pile and soil is distributed in a piecewise linear manner, in which the stress reaches the maximum value at the depth of 32 m, so more longitudinal reinforcement bars should be arranged in the engineering.
【作者單位】： 舟山市水運(yùn)工程檢測(cè)中心有限公司;舟山市港航工程規(guī)劃設(shè)計(jì)院有限公司;浙江海洋大學(xué)港航與交通運(yùn)輸工程學(xué)院;
【分類(lèi)號(hào)】：U656.113

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本文編號(hào)：1765279