[1]李元庆,李俊奇,杨正,等.城市下凹桥区排水系统概化模型构建与应用[J].中国给水排水,2025,41(1):128-136.
　LIYuan-qing,LIJun-qi,YANGZheng,et al.Construction and Application of Generalized Drainage Model in Urban Underpass Road[J].China Water & Wastewater,2025,41(1):128-136.
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城市下凹桥区排水系统概化模型构建与应用

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第1期 页码: 128-136 栏目: 出版日期: 2025-01-01
Title:
Construction and Application of Generalized Drainage Model in Urban Underpass Road
作者:
李元庆1， 李俊奇1， 杨正2， 王文海1， 吕放放3， 李璟1
（1.北京建筑大学 城市雨水系统与水环境教育部重点实验室，北京 100044；2.北京雨人润科生态技术有限责任公司，北京 100044；3.北京城市排水集团有限责任公司，北京 100044）
Author(s):
LI　Yuan-qing1， LI　Jun-qi1， YANG　Zheng2， WANG　Wen-hai1， Lü　Fang-fang3， LI　Jing1
（1. Key Laboratory of Urban Stormwater System and Water Environment ， Beijing University of Civil Engineering and Architecture， Beijing 100044， China； 2. Beijing Rain-eco Technology Co. Ltd.， Beijing 100044， China； 3. Beijing Drainage Group Co. Ltd.， Beijing 100044， China）
关键词:
下凹桥区;  排水系统概化模型;  积水预测
Keywords:
underpass road;  generalized drainage model;  waterlogging forecasting
摘要:
下凹桥区是城市内涝高风险区域，为快速预测下凹桥区在不同降雨条件下的积水情况，通过概化下凹桥区产汇流、排水以及积水过程，基于各设施排水能力与系统排水能力之间的关系，构建了针对城市下凹桥区的排水概化模型。以某城市下凹桥区为例，基于概化模型模拟1~100年一遇2 h设计降雨条件下的积水情况，并将概化模型计算结果与InfoWorks ICM模拟结果进行对比，Nash-Sutcliffe效率系数>0.7，最大积水深度偏差<20%，积水持续时间偏差<20%，最大积水持续时间偏差<1 h，且运行时间仅需2~3 s，表明概化模型可实现对下凹桥区积水情景的快速预测分析。
Abstract:
The underpass road is a high-risk area prone to urban waterlogging. To promptly predict the waterlogging in the underpass road under diverse rainfall conditions, a generalized drainage model for the urban underpass road was established based on the relationship between the drainage capacity of each facility and the system by generalizing the process of runoff confluence, drainage, and accumulation. The waterlogging of a real underpass road under the 2-hour design rainfall of 1-100 years return period was simulated based on the generalized model, and the calculation results of the generalized model were compared with the simulation results of InfoWorks ICM. The Nash-Sutcliffe efficiency coefficient was above 0.7, the deviation of peak waterlogging depth was less than 20%, the deviation of waterlogging duration was less than 20%, the deviation of peak waterlogging depth duration was less than 1 h, and the running time was only 2-3 s. This indicates that the generalized model can achieve rapid prediction and analysis of the waterlogging in the underpass road.
更新日期/Last Update: 2025-01-01