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一、前言我国平原地区修建了许多低水头水闸,其中不少水闸的闸门在过水时发生程度不等的振动。据1966年前的统计,江苏省有23座水闸在过流时发生过闸门振动,其中弧形门闸14座。振动较为严重的是蟑山闸,它共有36孔,每孔净宽10米,有8孔弧形闸门发生过振动。当闸门振动时,不但闸门上工作桥、公路桥跟着振动,离闸门几百米的闸管所门窗玻璃也都发生响声。又如河南省三义寨闸,它的弧形门曾发生过强烈的振动,公路桥也伴随着振动,并且发出类似卡车发动时的轰鸣声。
I. INTRODUCTION Many low-head sluices have been built in the plain areas of our country. Many of them have varying degrees of vibration when they pass through sluices. According to the statistics before 1966, there were 23 sluice gates in Jiangsu Province that had been subjected to gate vibration during overcurrent, of which 14 were arc-shaped gates. Vibrations are more serious cockroach Mountain Gate, which has a total of 36 holes, each hole net width of 10 meters, there are 8-hole radial gate vibration occurred. When the gate vibration, not only the working bridge on the gate, highway bridge followed by vibration, gate a few hundred meters from the gate of the door and window glass also have a sound. Another example is the Henan Province Sanyi Zhaizha, its arc-shaped door had occurred in a strong vibration, road bridges are accompanied by vibration, and issued a similar truck roar roar.