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桩顶沉降w1,d按下式计算得到:
其中:
wtoe,d
-
荷载作用下的桩底沉降
wtoe,d,1
桩端荷载引起的桩底沉降
wtoe,d,2
桩侧荷载引起的桩底沉降
wel,d
桩身压缩引起的沉降
沉降wtoe,d,1和wtoe,d,2的大小依据荷兰规范NEN 6743中给出的经验图表得到。沉降wel,d按下式计算得到:
L
桩长
Fmean,d
桩上的平均作用力
Aplast
桩身截面面积
Ep,mat,d
桩身材料的弹性模量