上海市防汛墙按千年一遇标准加固加高工程总长208km,分700多段,有1,300多座闸门(随着保护范围的不断扩大,长度已延伸到295km)。这1,300多座闸门,如平均口门宽度为4～6m,则由闸门组成的“活动挡水墙”将达到5,200～7,800m。从安全角度来看,“活动挡水墙”比固定挡水墙更具挑战性。据了解对防汛墙重要组成部分的闸门本身都参照“水利水电工程钢闸门设计规范”(简称水工钢闸门规范)设计,有些设计单位按业主要求或自己的习惯进行设计。有些施工单位 The flood control wall in Shanghai has a total length of 208km, more than 700 sections and more than 1,300 gates (the length has been extended to 295km as the scope of protection expands) according to the once-in-a-millennium standard reinforcement project. The 1,300 gates, such as the average width of 4 ~ 6m, the gate composed of “active retaining wall” will reach 5,200 ~ 7,800m. From a safety point of view, “active retaining wall” is more challenging than a fixed retaining wall. It is understood that the important part of the flood control wall of the gate itself refer to “design specifications for steel gate of water conservancy and hydropower project ” (referred to as hydraulic steel gate specification) design, some design units according to the owner’s requirements or their own design. Some construction units