As dock gate and emergency gate using in standing water , the floating bulkhead has proven to be an effective method for dewatering intakes at dams , dock basin , canals , and hydro plants 但作為控制閘在動(dòng)水中使用的浮箱門(mén),國(guó)內(nèi)外均鮮見(jiàn)。
But using a floating bulkhead as a door of checkgate is a new concept . because of the complex boundary condition and the fluid - structure interaction , model testing is a very important method of researching in this field 浮箱門(mén)在動(dòng)水中運(yùn)行時(shí),由于門(mén)體和水流的耦合作用和邊界條件的影響,其受力情況極其復(fù)雜,研究手段以物理模型試驗(yàn)為主。
By hydraulic modeling , this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water , and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken . as a result , the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice , the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper 本文結(jié)合常州新閘防洪控制工程水工模型試驗(yàn),系統(tǒng)分析了浮箱門(mén)在靜水和動(dòng)水中的穩(wěn)定性及其影響因素,指出靜水穩(wěn)性和動(dòng)水穩(wěn)性的不同特點(diǎn);試驗(yàn)測(cè)定了浮箱門(mén)動(dòng)水運(yùn)行時(shí)的受力情況,給出并分析了定位過(guò)程轉(zhuǎn)動(dòng)力的變化過(guò)程曲線;根據(jù)浮箱門(mén)啟閉速度與門(mén)體和岸墻之間撞擊力大小的關(guān)系,選擇合理的動(dòng)力設(shè)備,為設(shè)計(jì)和工程實(shí)踐提供可靠依據(jù);分析浮箱門(mén)難以穩(wěn)定上浮的原因,并給出解決方案。