A.砂礫石的相對(duì)密度不應(yīng)低于0.7
B.砂的相對(duì)密度不應(yīng)低于0.75,反濾料宜為0.7
C.砂礫石中粗粒料含量小于50%時(shí),應(yīng)保證細(xì)料的相對(duì)密度不低于0.7
D.1~2級(jí)壩和高壩的壓實(shí)度應(yīng)為98%~100%
正確答案:D
答案解析:無(wú)
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