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[摘要]
刘山北站在改造时有三种结构布置型式, 即主站身与虹吸式出水流道分开布置、主站身与平直管出水流道整 体布置以及主站身与虹吸式出水流道整体布置, 每种方案都有各自的优缺点。对各方案进行比选研究并选择最优 方案是该泵站工程在设计中的一项重要工作。首先对刘山北站的三种结构布置方案进行初步比选, 然后对不同工 况下的三种方案进行三维有限元结构计算与分析, 分析比较不同方案的水平和竖直位移, 比较底板、闸墩、流道的应 力状态, 为刘山北站工程的结构布置方案比选提供理论依据。分析结果表明: 分离式底板与虹吸式流道结合方式布 置的结构的位移、应力状态较好, 推荐设计时采用该方案。
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[Abstract]
There ar e three structur al ar rangement schemes in the r eco nstr uction o f Liushan Nor th Pum ping Station: separ ate ar2 r ang ement o f the main bo dy and the siphon o utlet passage, integr ated ar rangement o f t he main bo dy and the straig ht pipe outlet passage, and integr ated ar rang ement of t he main body and the siphon outlet passag e. Each scheme has its ow n advantages and disadvantages. Compa ring the schemes and selecting the o pt imal one is an impor tant w or k in the desig n of the pumping st ation. In this paper, w e fir st compared the thr ee st ructur al arr ang ement schemes of Liushan Nor th Pumping Statio n, then conducted three dimensio nal finite element st ructur al calculat ion and analy sis o f the thr ee schemes under different w orking co ndit ions.We compar ed the hor izo nt al and v ertical displacement and the st ress states of t he floo r, g ate pier, and flow channel in differ ent schemes, so as to pr ovide a theor etical basis for the select ion o f a structural ar rangement scheme of Liushan Nor th Pumping Sta2 tion. T he r esults show ed that separate ar rangement o f t he flo or and siphon passage wo uld present satisfacto ry displacement and st ress state, so we r ecommend this scheme fo r the desig n.
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