河流丁坝“BIM+”创新设计方法研究  

Research on “BIM+” innovative design method of groin

作　　者：陈平[1] 傅长锋[1] 王海峰[1] 田燕琴[1] 戚蓝[2] CHEN Ping;FU Changfeng;WANG Haifeng;TIAN Yanqing;QI Lan(Hebei Institute of Investigation&Design of Water Conservancy&Hydropower Group Limited,Tianjin 300220,China;State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China)

机构地区：[1]河北省水利水电勘测设计研究院集团有限公司,天津300220 [2]天津大学水利工程仿真与安全国家重点实验室,天津300072

出　　处：《水科学与工程技术》2023年第1期1-4,共4页Water Sciences and Engineering Technology

基　　金：河北省水利厅科学技术研究项目“沙质河床丁坝群冲刷机理研究与工程示范”(冀水科研2020-056)。

摘　　要：丁坝设计常借助室内水槽、恒定水流试验进行,往往与实际情况相差较大。以大数据和现场试验为基础,采用BIM+冲刷微地形成图技术,通过现场修建试验丁坝群、河道自然行洪过程,确定试验丁坝群附近的冲刷微地形变化过程的三维水动力数学模型及相关参数。将治理河段设计洪水过程线作为模型的入流条件,利用三维水动力模型模拟拟建丁坝群的防护效果,通过不断优化、调整丁坝位置、长度、坝头结构等参数,使其达到水流流势平稳、水流结构稳定、冲刷坑小且冲淤平衡效果好的目的。The design of groin is often carried out by means of indoor flume and constant flow test, which is quite different from the actual situation. Based on big data and field test, this paper adopts BIM + scour micro-geodetic mapping technology,based on the field construction of experimental spur dikes and the change of scour micro-topography in the vicinity of the experimental spur dikes, the 3-D hydrodynamic mathematical model and related parameters are determined. In this paper,the design flood hydrograph of harnessing reach is taken as the inflow condition of the model, and the 3D hydrodynamic model is used to simulate the protective effect of spur dikes, by continuously optimizing and adjusting the location, length and head structure of spur dikes, the flow potential is stable, the flow structure is stable, the scour pit is small and the effect of scouring and silting balance is good.

关 键 词：丁坝群 三维水动力模型 水流特性 数值模拟 

分 类 号：TV863[水利工程—水利水电工程]