管网排水能力对雨水口堵塞和管道淤积的响应规律模拟  

Simulation of the response of drainage capacity of pipe network to street inlet clogging and pipeline silting

作　　者：侯精明 王梓驿 李东来 卜良河 陈光照 杨宇英 方媛 HOU Jingming;WANG Ziyi;LI Donglai;BU Lianghe;CHEN Guangzhao;YANG Yuying;FANG Yuan(State Key Laboratory of Eco-hydraulics in Northwest Arid Region,Xi'an University of Technology,Xi'an 710048,China;Weinan Bureau of Housing and Urban-Rural Development,Weinan 714025,China;Shaanxi Weihe Ecological Technology Research and Development Company Limited,Xi'an 710000,China)

机构地区：[1]西安理工大学西北旱区生态水利国家重点实验室,陕西西安710048 [2]渭南市住房和城乡建设局,陕西渭南714025 [3]陕西渭河生态科技研发有限公司,陕西西安710000

出　　处：《水科学进展》2025年第1期122-131,共10页Advances in Water Science

基　　金：国家自然科学基金项目(52409104,52079104)。

摘　　要：雨水管网系统作为城市排涝的主要通道,其排水性能易受管道淤积和雨水口堵塞的影响,探明雨水口堵塞和管道淤积程度对管网排水能力的影响,对评估城市洪涝发展过程具有重要意义。以唐山市路北区龙王庙以西为研究区域,基于GAST-SWMM耦合模型,对不同雨水口堵塞和管道淤积条件下的管网排水过程和地表积水量进行模拟分析。结果表明:随着管道淤积和雨水口堵塞程度的增加,管网排水能力逐步下降,且变化趋势越发显著;管道无淤积时,雨水口由无堵塞增加至堵塞75%,不同降雨重现期下峰值流量相较无堵塞时平均减少5.30%~37.8%,地表积水量平均增加2.48%~14.6%;雨水口无堵塞时,管道由无淤积到淤积75%时,峰值流量平均减少20.9%~84.6%,地表积水量平均增加4.46%~24.1%;此外,当堵塞或淤积单一因素逐渐加剧并达到显著水平时,另一因素对管网系统排水能力的影响会相对减弱。研究结果可为不同状态下雨水管网排水能力分析和水灾害防治提供依据。The drainage system of rainwater pipes serves as the primary channel for urban drainage,and its capacity is significantly influenced by pipeline silting and street inlet clogging.Understanding the extent of street inlet clogging and pipeline silting on the network's drainage capacity is crucial for evaluating the development process of urban flooding.Based on the GAST-SWMM coupled model,the drainage process and surface water volume in the study area of Longwangmiao,Lubei District,Tangshan City,were simulated and analyzed under diverse conditions of street inlet clogging and pipeline silting.The results indicate that as pipeline silting and street inlet clogging worsen,the drainage capacity of the network gradually decreases,and this trend becomes increasingly evident.When there is no pipeline silting,as street inlet clogging increases from 0 to 75%,the peak flow decreases by an average of 5.30%to 37.8%compared to no blockage,while surface water volume rises by an average of 2.48%to 14.6%.Similarly,when there is no clogging at the street inlet,as pipeline silting increases from 0 to 75%,the peak flow decreases by an average of 20.9%to 84.6%,and surface water volume rises by an average of 4.46%to 24.1%.Furthermore,when one factor intensifies to a significant level,the influence of the other factor on the drainage capacity of the network will relatively weaken.These findings provide a foundation for analyzing the drainage capacity of rainwater pipes under various conditions and for preventing water-related disasters.

关 键 词：排水管网 雨水口堵塞 管道淤积 峰值流量 地表积水量 

分 类 号：TU992[建筑科学—市政工程]