某砖石承重结构条形基础上荷载标准值Fk=160kN/m,基础布置和地基土层断面如图所示,基础的埋置深度为1.60m,采用振冲砂石桩置换法处理淤泥质粉质黏土。砂石桩长7.0m(设计地面下8.2m),直径d=800mm,间距s=2.0m,等边三角形排列。则复合地基承载力特征值为()kN/m2。
A. 122.69
B. 211.78
C. 156.9
D. 189.67
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99% junk mail is thrown into the garbage bin without being opened.
A. Right
B. Wrong
C. Not mentioned
All the following can benefit from computers according to the passage EXCEPT______.
A. businessmen
B. customers
C. teachers
D. publishers
The only drawback of junk mail is that it wastes our time.
A. Right
B. Wrong
C. Not mentioned
某6桩群桩基础截面尺寸如图所示,预制方桩截面尺寸0.35m×0.35m,桩距 1.2m,承台尺寸3.2m×2.0m,高0.9m,承台埋深1.4m,桩伸入承台0.05m,承台作用竖向荷载没计值F=3200kN,弯矩设计值M=170kN.m,水平力设计值H=150kN,承台混凝土强度等级C20,钢筋HRB335。则角桩冲切承载力(γ0取1.0)为()kN。
A. 1258.5
B. 1278
C. 1267.5
D. 1285