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yi cheng da qiao zhu qiao she ji ji suan yu shi jian
Author(s): 
Pages: 10-20
Year: Issue:  10
Journal: Highway

Keyword:  挂篮悬浇河床标高桥面净宽设计荷载最大水深净跨公路桥梁合拢段钢束游荡性河;
Abstract: <正> 宣城大桥是在湖北省宜城县跨越汉江的一座特大公路桥梁,全长1886.95m。设计荷载标准:汽车—20级,挂车—100,人群3.5kN/m~2。桥面净宽9m,人行道2×1.5m。三级航道,净跨不小于65m,净高10m,三级通航跨总长不小于400m。本桥位于汉江中游,沙洲纵横,主槽多变,属半游荡性河段。河床标高47.6~53.0m,冲刷标高34.78~35.90m,施工时最大水深4.80m。河床表层4~5m为细砂,次为卵砾
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