基于随机解析模型的雨水渗渠下渗性能评估  

Performance Evaluation of Stormwater Infiltration Trench Based on Stochastic Analytical Model

作　　者：王家昌 刁义骄 曹升乐[1] 江恩慧 辛瑞瑞[1] 王俊 WANG Jiachang;DIAO Yijiao;CAO Shengle;JIANG Enhui;XIN Ruirui;WANG Jun(School of Civil Engineering,Shandong University,Jinan 250061,China;Yellow River Institute of Hydraulic Research,YRCC,Zhengzhou 450003,China)

机构地区：[1]山东大学土建与水利学院,山东济南250061 [2]黄河水利委员会黄河水利科学研究院,河南郑州450003

出　　处：《人民黄河》2025年第2期95-99,136,共6页Yellow River

基　　金：国家自然科学基金资助项目(52109025);山东省自然科学基金资助项目(ZR2021QE001);山东大学青年学者未来计划项目(31410082164087)。

摘　　要：为探索渗透型低影响开发设施的下渗性能快速评估方法,以雨水渗渠为研究对象,选取两个不同气候特征的北方城市(北京和兰州)为研究区,提出了一种随机解析水文模型,可用于快速定量评估雨水渗渠的下渗性能。系统分析了研究区不同渗渠设计工况(包括3种不同土壤类型、16种不同的砾石层厚度和10种不同的集水区与渗渠面积比)的地下水补给率变化情况。结果表明:1)根据不同工况的渗渠随机解析模型计算得到的地下水补给率与SWMM模型连续模拟结果一致性较好,验证了解析模型的可靠性;2)半干旱地区兰州的地下水补给率大于半湿润地区北京的,渗渠土壤下渗率与设施砾石层厚度的增大会导致地下水补给率增大,而集水区面积增大会导致地下水补给率减小。In order to investigate the rapid evaluation method of infiltration performance for the infiltration-based low-impact development facilities,this study proposed an analytical stochastic model for rapidly quantifying the infiltration performance by taking stormwater infiltration trenches as the research object and selected two climatically different northern cities in China(Beijing and Lanzhou)as the study area.This study comprehensively analyzed the variation of the groundwater recharge ratio under different trench design conditions(i.e.,three different soil types,16 different depths of gravel storage layers and 10 different ratios of the runoff contributing area to the trench surface area)in the study areas.The results show that a)the groundwater recharge rate calculated by the random analytical model in different working conditions is in good agreement with the continuous simulation results of SWMM model,which verifies the reliability of the analytical model;b)the groundwater recharge capacity in Lanzhou as a semi-arid area is higher than that in Beijing as a semi-humid area.The increase in infiltration rate and depth of the gravel storage layer of infiltration trenches leads to a higher groundwater recharge rate,while the increase in the contributing catchment area leads to the decrease in the groundwater recharge rate.

关 键 词：雨水资源化利用 地下水补给 雨水渗渠 随机解析模型 北京 兰州 

分 类 号：TV213.4[水利工程—水文学及水资源]