CAJ | 학술논문

以珠海高栏港码头结构为工程背景，对码头的大直径PHC桩的数值模拟技术和承载特性进行研究。首先采用ABAQUS进行数值模拟，并将数值模拟结果与试验结果进行对比分析，验证了有限元分析的可行性，然后通过桩径、桩长，桩侧土和桩端土等一系列参数的变化，探讨这些参数对PHC桩Q-S曲线的影响。结果表明，有限元计算出的位移比实测结果高出2%～20%，桩长超过50 m的PHC桩属于超长桩。
이주해고란항마두결구위공정배경，대마두적대직경PHC장적수치모의기술화승재특성진행연구。수선채용ABAQUS진행수치모의，병장수치모의결과여시험결과진행대비분석，험증료유한원분석적가행성，연후통과장경、장장，장측토화장단토등일계렬삼수적변화，탐토저사삼수대PHC장Q-S곡선적영향。결과표명，유한원계산출적위이비실측결과고출2%～20%，장장초과50 m적PHC장속우초장장。
In order to study the numerical simulation techniques and vertical capacity characteristics of large- diameter PHC pipe pile, based on high-piled wharf of Zhuhai Gaolan port, we conduct the numerical simulation on large-diameter PHC pipe piles of the wharf by ABAQUS, the result of which is validated by comparing with that by the field test. Then we study the vertical compression Q-S curves of PHC pile through changing the parameters of pile diameter, pile length, soil of pile shaft and pile toe etc. The results show that the displacement value of numerical simulation is about 2%to 20%smaller than that of the field test in the loading process, and the length of pile which is larger than 50 m belongs to super long pile.