苏联在伏尔加顿斯克建成一座超大件码头,全长112米,装备两台可同步作业的龙门吊(能力2×630吨)(图1)。在码头水工结构方案比较中,鉴于坞式结构需建造12米深的基坑,并需采用深槽排水,造成混凝土工程量过大、造价高、工期长,故而决定采用传统的栈桥式码头。栈桥码头由20米 The Soviet Union built an oversized wharf in Volgatonsk, a total length of 112 meters and equipped with two gantry cranes (capacity of 2 × 630 tons) for simultaneous operation (Figure 1). In the comparison of the hydraulic structure scheme of the wharf, in view of the fact that the dock structure needs to construct a 12-meter-deep foundation pit and the deep-trough drainage is required, which results in excessive concrete construction, high cost and long construction period, it is decided to adopt the traditional trestle pier . Trestle pier by 20 meters