非水工建筑物对河道行洪的影响分析  

Analysis on the Impact of Non Hydraulic Structures on River Floods

作　　者：黎晓开 LI Xiaokai(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2024年第9期154-158,共5页Yunnan Water Power

摘　　要：在河道内修建建筑物,侵占了部分过水断面,阻碍并干扰天然水流的正常运动,造成对水流的压缩、水位壅高,影响河道行洪,致使水流流速加大,将增大河流对河床的冲刷,进一步恶化部分河段河势稳定。通过工程实例描述涉水工程河段水文分析及壅水、冲刷计算,分析拟建工程对河道行洪和河势稳定的影响及洪水对拟建桥梁的影响,最后评价判断拟建工程方案的可行性。The construction of buildings in the river channel has encroached on some of the water flow sections,obstructed and interfered with the normal movement of natural water flow,resulting in compression of water flow and elevation of water level.It affects the flood discharge of the river channel,causing an increase in water flow velocity,which will increase the erosion of the riverbed by the river and further deteriorate the stability of some river sections.Through engineering examples,this paper describes the hydrological analysis and calculation of water blocking and erosion in the river section of the water crossing project.It analyzes the impact of the proposed project on river flow and river stability,as well as the impact of floods on the proposed bridge.Finally,the feasibility of the proposed project plan is evaluated and judged.

关 键 词：壅水 冲刷 河道行洪 影响分析 

分 类 号：TV147.5[水利工程—水力学及河流动力学]