【摘要】：為研究排架結(jié)構(gòu)碼頭階梯形岸坡樁土相互作用以及水位變化對(duì)樁土作用的影響,進(jìn)行了大型模型試驗(yàn)?zāi)M。根據(jù)試驗(yàn)數(shù)據(jù),對(duì)排架結(jié)構(gòu)樁周土體的側(cè)向應(yīng)力分布、排架樁身的受力特性以及水位變化的影響進(jìn)行了討論。結(jié)果表明:水平荷載作用下,排架各樁樁周土體側(cè)向應(yīng)力分布相似,呈三角形分布。樁周土體側(cè)向應(yīng)力隨荷載的增加而增大;排架結(jié)構(gòu)對(duì)岸坡有遮簾效應(yīng),起到一定的抗滑作用;排架樁身彎矩值隨荷載的增加逐漸增大,樁身彎矩的大小與樁所處的位置有很大關(guān)系;水位越高,樁周土體側(cè)向應(yīng)力越大,樁身彎矩也越大,碼頭整體穩(wěn)定性越差。
[Abstract]:In order to study the effect of pile-soil interaction on stepped bank slope and the effect of water level on pile-soil interaction, a large-scale model test was carried out to simulate the pile-soil interaction. According to the experimental data, the lateral stress distribution of the soil around the row-framed pile, the stress characteristics of the pile body and the influence of the water level change are discussed. The results show that the lateral stress distribution of the piles around the piles is similar to that of the piles under horizontal load, showing a triangular distribution. The lateral stress of the soil around the pile increases with the increase of the load, and the sheltering structure has a curtain effect on the bank slope, which plays a certain role of anti-sliding. The moment value of pile body increases with the increase of load, and the bending moment of pile is related to the position of pile, and the higher the water level, the greater the lateral stress of soil around the pile, the greater the moment of pile body, and the worse the stability of wharf as a whole, the higher the water level, the greater the lateral stress of soil around the pile and the greater the moment of pile body.
【作者單位】： 重慶交通大學(xué)國(guó)家內(nèi)河航道整治工程技術(shù)研究中心;重慶交通大學(xué)水利水運(yùn)工程教育部重點(diǎn)試驗(yàn)室;
【基金】：“十二五”國(guó)家科技支撐計(jì)劃課題(2012BAB05B04)資助
【分類號(hào)】：U656.1

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