本图为第四設計院編制,活载中-22级。适用于綫路跨过河道急弯,水流紊乱,流向不定或水流斜交角大于15°河流上的桥梁。圆墩横向刚度较差,故在有流木、流筏、强烈流冰或流速較大且有磨损圬工的大颗粒冲积物的河流中,应尽量避免使用,必要时须經过检算采取适当措施。直綫的圆墩圬工较其他类型(例如圆端形、尖端形)桥墩节省,但曲綫墩較费。对增建并行的复线桥梁 This picture is prepared by the Fourth Design Institute, live -22. Apply to the line across the river sharp bends, water turbulence, irregular flow or water skew angle greater than 15 ° on the river bridge. Circular pier pier transverse stiffness is poor, so the flow of wood, flow rafts, strong ice or flow velocity and wear a large grain alluvial rivers, should be avoided as far as possible, if necessary, to be tested to take appropriate Measures. Straight round piers save on piers of other types (eg, round tip, tip) than curve piers. On the addition of parallel double-track bridge