CAJ | 학술논문

基于Winkler弹性地基和New mark等效弹簧支座概念，应用传递矩阵法建立适应多种桩侧地基反力分布假设的数学模型，在对地基反力离散简化中考虑了分割桩段两端位移不等值因素。通过现场试桩测定桩的水平位移和截面转角双参数，电算获得不同地基反力模型的相关参数。根据不同地基反力模型对长桩进行稳定性计算，对不同地基反力模型、不同桩顶约束形式和不同地面伸出长度时桩的计算长度变化规律进行了分析，揭示了3方面因素对桩的屈曲性能的影响。
기우Winkler탄성지기화New mark등효탄황지좌개념，응용전체구진법건립괄응다충장측지기반력분포가설적수학모형，재대지기반력리산간화중고필료분할장단량단위이불등치인소。통과현장시장측정장적수평위이화절면전각쌍삼수，전산획득불동지기반력모형적상관삼수。근거불동지기반력모형대장장진행은정성계산，대불동지기반력모형、불동장정약속형식화불동지면신출장도시장적계산장도변화규률진행료분석，게시료3방면인소대장적굴곡성능적영향。
A mathematical model was established by using the transfer matrix based on Winkler elastic subgrade and spring supports in Newmark method .In simplification for subgrade reaction with discrete spring supports ,the unequal displacements of two ends for pile section were included in the model .Lateral displacement and cross‐section angle of the pile were determined by lateral static load test and the values of parameters of multiple subgrade reaction models were calculated by computer programming .By identifying the stability of long pile in different subgrade reaction models ,the change patterns of three factors were analyzed ,including effective length of long pile , restrictions on pile top and extensive length on the ground .