s~~~~~~~~3号楼C3号孔:
已知:桩长34.5m混凝土:C3015
桩径0.55m桩顶绝对标高 1.62
桩顶相对标高-3.33
桩截面面积:0.237659
桩周长 1.727825
土层分布:
土层土层厚度(m)土层重度压缩模量fs(KPa)fp(KPa)桩摩阻力桩端阻力100150.00
2.10.8118.8 4.131520.99
2.20.717.5 2.381518.14
3 1.617.9 3.251541.47
3 1.11910.8515 3.920
3 2.81910.8535169.330
3 1.817.7 3.042062.200.00
49.217 1.9520317.920.00
5.11
6.4918.65404001139.6795.06
5.3018.97.5456000.00142.60
34.5
单桩承载力摩阻力Rsk1773.65
单桩承载力端阻力Rpk95.06
端阻比0.051
端阻比p0.050.10.051
гp 1.02 1.05 1.021
гs 1.64 1.7 1.641
抗震时Rsk rs rRe Rpk rp单桩承载力设
单桩承载力设计值1773.646 1.6410.895.06341 1.0211173.95
桩身结构强度计算单桩竖向承载力设计值:
预制桩:(0.6~0.75)FcAp=2138.927KN
灌注桩:0.6FcAp=2138.927KN
取单桩承载力设计值:1173.95KN
取1100KN