單項選擇題
某建筑場地為淤泥質(zhì)黏土層,固結(jié)系數(shù)為,受壓土層厚度為10m,袋裝砂井直徑70mm,砂井采取等邊三角形布置,間距ι=1.4m,深度為10m,砂井底部為透水層,砂井打穿受壓土層,預壓荷載為100kPa,一次等速施加,加載速率為每天10kPa,按《建筑地基處理技術規(guī)范》(JGJ79-2002)計算。
A.57d B.62d C.67d D.72d
A.0.81、0.0369(1/D. B.0.81、0.0251(1/D. C.1、0.0369(1/D. D.1、0.0251(1/d
A.0.80 B.0.84 C.0.90 D.0.94
A.19 B.21 C.22 D.22.6
A.5.56m B.6.31m C.7.06m D.7.81m
A.4.41m B.4.61m C.4.81m D.5.0m
A.70.3kPa B.78.3kPa C.82.4kPa D.96.3kPa
A.50kPa B.54kPa C.60kPa D.65kPa
A.145kPa B.150kPa C.155kPa D.160kPa
A.4.8m B.5.3m C.5.8m D.6.3m
A.3.5m B.3.7m C.4.1m D.4.3m