名山桥局部冲刷二维数值计算分析和防护研究  

2-D Mathematic Calculation of Partial Scour of Mingshan Bridge

作　　者：李东风[1] 张红武[2] 谢华伟[1] 欧剑[1] 陶爱强 张继原 

机构地区：[1]浙江水利水电专科学校,浙江杭州310018 [2]清华大学水利水电工程系,北京100084 [3]缙云县水利局,浙江缙云321400

出　　处：《浙江水利水电专科学校学报》2012年第4期9-12,共4页Journal of Zhejiang Water Conservancy and Hydropower College

基　　金：浙江省自然科学基金资助项目(M503254);国家自然科学基金资助项目(51039003);浙江省教育厅科技计划基金资助项目(Z200909405);浙江省水利科技计划基金资助项目(RC11092011)

摘　　要：拟建的名山桥位于缙云好溪河流,根据模型验证的需要经及现有的好溪水文资料,利用二维河流数学模型和经验公式对桥墩局部冲刷进行了对比计算和分析,对桥梁墩台防护的措施及其降低水流流速,干扰水流的紊动,减少马蹄形旋涡强度,降低水流的冲刷能力的水动力特性进行了分析.为工程设计和管理提供了依据.The proposed Mingshan Bridge is located in Haoxi River, Jinyun. According to the needs of model validation and hydraulic data, two dimensional mathematical model and empirical formula are used to calculate and analyse the partial scour of the bridge pier. And the protective measures are suggested and the hydrodynamic characteristic is discussed in order to reduce flow velocity, to decrease turbulence flow interference, to weak horseshoe vortex strength, to lessen water ero- sio, which offers basis for engineering design and management.

关 键 词：名山桥 冲刷 防护 二维河流数学模型 

分 类 号：TV131[水利工程—水力学及河流动力学]