浙江省涉河桥梁水利技术规定（试行）浙江省水利厅浙江省发展和改革委员会二ΟО八年一月前言随着涉河桥梁建设的增多，建桥不当引起河道行洪不畅的情况时有发生，但国家有关部门尚未制定涉河桥梁的水利技术规定，为防止建桥不当对水利的负面影响，统一我省涉河桥梁的有关技术参数标准，特制定本规定。本规定共5章和1个附录，主要内容包括：总则、术语、涉河桥梁布置、涉河桥梁控制参数、其它。本规定对涉河桥梁布置、涉河桥梁控制参数作了技术规定。本规定批准部门：浙江省水利厅、浙江省发展和改革委员会本规定主编单位：浙江省河道管理总站、浙江省水利河口研究院本规定主要起草人：郑月芳、黄世昌、李若华、郜会彩、何斐、周骥、王敏、纪生花、许志良目录1总则....................................................................12术语....................................................................23涉河桥梁布置............................................................33.1桥位................................................................................................................................33.2桥梁防洪标准................................................................................................................33.3桥轴线............................................................................................................................33.4梁底标高........................................................................................................................33.5桥墩布置.........................................................................................................................43.6桥梁承台........................................................................................................................43.7桥面集中排水................................................................................................................44涉河桥梁控制参数........................................................54.1阻水面积百分比.............................................................................................................54.2最大壅水高度................................................................................................................54.3壅水叠加.........................................................................................................................64.4流态变化........................................................................................................................64.5堤脚冲刷.........................................................................................................................64.6观测设施........................................................................................................................65其它....................................................................7附录A....................................................................81桥前壅水.................................................................81.1最大壅水高度计算.........................................................................................................81.2桥下壅水高度..............................................................................................................101.3壅水曲线......................................................................................................................102冲刷计算................................................................112.1一般冲刷计算.......................
