镇海港位于甬江口门段,口外为水深流急,水下地形稳定的金塘水道,具有出海航道短的建港优越条件。一九七五年抛筑了招宝山至游山的防波堤,并沿堤规划兴建十四个泊位的万吨级码头,一九七八年已建成万吨级和三千吨级的煤码头各一个。同年三月起全面开挖港池和航道,由于海域含沙量高,开挖断面积大,回淤迅速,煤码头未能及时投产。为减小回淤挖泥量提出整治与疏浚相结合的原则,并于1980年3月成立了整治工作组,共同研究决定 Zhenhai Port is located in the section of the mouth of the mouth of the estuary, outside the mouth of the water depth and urgency, the stability of the underwater terrain of the Jintang waterway, with a short sea port construction conditions superior. The construction of the breakwater at Zhaobaoshan to Youyou in 1975 and the construction of a 10-ton wharf with 14 berths along the bank have been completed. In 1978, the coal wharves of 10,000-ton and 3,000-tonne have been completed One. In March the same year since the full excavation of harbor basin and waterway, due to high sediment concentration, excavation area, silt silting quickly, the coal terminal failed to put into operation in time. In order to reduce the volume of silt dredging proposed rectification and dredging the principle of combining and in March 1980 set up a working group to rectify the joint study and decision