A.當(dāng)樁長(zhǎng)小于10m時(shí),每孔可取1組 B.當(dāng)樁長(zhǎng)小于10m時(shí),每孔可取2組 C.當(dāng)樁長(zhǎng)為10~30m時(shí),每孔截取3組芯樣 D.當(dāng)樁長(zhǎng)大于30m時(shí),每孔不少于4組
A.0.5m B.1.0m C.1.5m D.2.0m
A.0.1% B.0.5% C.1.0% D.1.5%