A.15 B.20 C.30 D.35
A.0.50 B.0.75 C.1.0 D.1.25
A.當(dāng)擋土墻墻背為巖塊時(shí),須計(jì)入墻背動(dòng)水壓力 B.當(dāng)墻背為粉砂土?xí)r,須計(jì)入墻身兩側(cè)的靜水壓力 C.節(jié)理很發(fā)育的巖石地基,墻身所受浮力按計(jì)算水位的100%計(jì)算 D.巖石地基墻身所受浮力按計(jì)算水位的50%計(jì)算