CAJ | 학술논문

利用Winkler弹簧-阻尼器来描述桩土之间的动力相互作用，得到了分数导数黏弹性（ FDV）模型描述的土体的刚度系数和阻尼系数。利用传递矩阵法并考虑埋入部分和外露部分桩基的连续性条件，求解了基于FDV模型的土体中部分埋入端承摩擦桩的水平振动，得到了桩顶的水平动力阻抗。研究了分数导数的阶数、外露部分桩长和土体本构模型参数对桩水平振动的影响。研究表明：分数导数的阶数和本构模型参数对部分埋入桩的水平动刚度有一定的影响，而对其等效阻尼的影响很小；外露部分桩长对水平动力阻抗的影响较大。
이용Winkler탄황-조니기래묘술장토지간적동력상호작용，득도료분수도수점탄성（ FDV）모형묘술적토체적강도계수화조니계수。이용전체구진법병고필매입부분화외로부분장기적련속성조건，구해료기우FDV모형적토체중부분매입단승마찰장적수평진동，득도료장정적수평동력조항。연구료분수도수적계수、외로부분장장화토체본구모형삼수대장수평진동적영향。연구표명：분수도수적계수화본구모형삼수대부분매입장적수평동강도유일정적영향，이대기등효조니적영향흔소；외로부분장장대수평동력조항적영향교대。
The dynamic interaction between pile and pile around soil was described by Winkler spring-damping, and the stiffness and damping coefficients of the pile around soil were obtained. By considering the continuous condi-tions of the embedded part and exposed part of pile, the lateral vibration of partially embedded end bearing friction pile in fractional derivative viscoelastic soil was solved with transfer matrix method, and the dynamic impedance at pile head were obtained. The influence of the order of fractional derivative, length of exposed part of pile and constitutive model parameters on the lateral vibration of pile were investigated. It is shown that the order of fractional derivative and the constitutive model parameters had a certain influence on the horizontal dynamic stiffness, but had little influence on the equivalent damping, and the length of exposed part of pile had great effect on the horizontal dynamic impedance of the pile.