某天然地基fsk=100kPa,采用振冲挤密碎石桩复合地基,桩长l= 10m,桩

tikufree2019-12-17  7

问题 某天然地基fsk=100kPa,采用振冲挤密碎石桩复合地基,桩长l= 10m,桩径d = 1.2m, 按正方形布桩,桩间距s= 1.8m,单粧承载力特征值fpk =450kPa,桩设置后,桩间土承载力提高20%,问复合地基承载力特征值为( )kPa。A. 248 B. 235 C. 222 D. 209

选项

答案B

解析[img]/upload/tiku/191/2460868_1.jpg[/img]
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