渔贝
中国旅游地理Episodes
Episodes of 中国旅游地理
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1. 安济桥。又名赵州桥，横跨在河北赵县城南的洨河上，建于隋开皇年间，由著名工匠李春设计建造。桥身为单拱，弧形，全长50.82米，宽9.6 米，跨度为37.37米。桥拱肩敞开，拱肩两端各建两个小拱，即敞肩拱。开创了桥梁的新类型，是世界桥梁工程中的首创，也是世界上现存最大的敞肩桥。它既减轻了桥身自重，省工省料又有利于洪水的宣泄，减少洪水对石桥的冲击。2. 苏州宝带桥。位于苏州市，建于唐代，是我国孔数最多的联拱石桥，长318米，宽4.1米，共53个孔。桥沿运河岸，跨越澹台河，为纤道桥，因
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