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一、长江口浮泥调查情况和长江口浮泥特点1.长江口浮泥调查情况上海航道局和华东师范大学曾于1976年、1977年和1991年对长江口浮泥的情况进行过调查。上海航道局1977年8月对长江口北港,北槽和南槽的调查结果表明:北港和北槽未发现浮泥,南槽有浮泥。当时的大通流量为50000m~3/s,中浚潮差为1.3～2.6m。从河床质来看,北港粗,d_(50)为0.015～0.125mm,南槽细,d_(50)为0.006～0.030mm,北槽居中,d_(50)为0.012～0.124mm。华东师范大学1991年9月对长江口北槽和南槽的调
First, the Changjiang Estuary mud survey and characteristics of the Yangtze Estuary mud 1 Changjiang Estuary mud survey Shanghai Waterway Bureau and East China Normal University in 1976, 1977 and 1991 conducted a survey of the Yangtze River Estuary mud. The survey conducted by the Shanghai Waterway Bureau in August 1977 at the north port, north bank and south bank of the mouth of the Yangtze River Estuary showed that no floating mud was found in the north port and north bank and that there was floating mud in the south bank. At that time, the flow of Chase was 50000m ~ 3 / s, tidal discharge in the Chun was 1.3 ~ 2.6m. From the riverbed quality, North dagger is thick, d 50 is 0.015-0.125 mm, South dagger is fine, d 50 is 0.006-0.030 mm, middle is north d 50 is 0.012-0.124 mm. East China Normal University in September 1991 on the Yangtze estuary north and south trough adjustment