京杭运河山东南段航道上,有两座船闸,一座节制闸的钢筋混凝土整体底板及护坦,相继开裂,因而使建筑物的安全受到严重威胁,且修复困难。这些建筑物都在六十年代设计和竣工,施工质量符合要求。事故大多是由于设计不周造成的。类似的情况在其它地方也常发生,因此有必要对水闸底板的设计及计 On the fairway of the southern section of the Beijing-Hangzhou Canal, there are two ship locks, a reinforced concrete monolithic floor plate and a guard tank for the control gate, which are cracked one after another. As a result, the safety of the building is seriously threatened and it is difficult to repair. These buildings were designed and completed in the 1960s and the construction quality was in line with the requirements. Most of the accidents were caused by poor design. Similar situations often occur in other places, so it is necessary to design and calculate the sluice floor.