水泥−粉煤灰搅拌桩复合地基承载特性

周盛全,章昊琎,王瑞,张勇飞,李栋伟

Bearing characteristics of cement-fly ash mixing pile composite foundation

Sheng-quan ZHOU,Hao-jin ZHANG,Rui WANG,Yong-fei ZHANG,Dong-wei LI

表 1 各级荷载作用下桩身轴力沿桩身减幅

Tab.1 Reduction of pile axial force along pile body under various loads

L/cm Ts/N Fb=200 N Fb=400 N Fb=600 N Fb=800 N Fb=1 000 N Fb=1 200 N Fb=1 400 N Fb=1 600 N Fb=1 800 N Fb=2 000 N [2.5, 11.5) 64 127 176 192 150 168 182 155 254 271 [11.5, 20.5) 67 135 180 196 290 270 320 337 308 334 [20.5, 29.5) 30 21 87 190 210 220 220 237 292 301 [29.5, 38.5) 16 24 23 80 70 180 180 185 220 246 [38.5, 47.5) 14 41 48 38 110 150 170 182 189 220