淮北平原五道沟地区降雨产流影响因素及变化规律研究  

Study on Influencing Factors and Variation Rules of Rainfall Runoff Production in Wudaogou Area of Huaibei Plain

作　　者：王婉婉 杜富慧 朱信泽 周超 杜嘉阳 丁钰童 徐荣艳 张美娜 王振龙[3] WANG Wan-wan;DU Fu-hui;ZHU Xin-ze;ZHOU Chao;DU Jia-yang;DING Yu-tong;XU Rong-yan;ZHANG Mei-na;WANG Zhen-long(College of Energy and Environmental,Hebei University of Engineering,Handan 056021,China;Yancheng Branch,Jiangsu Bureau of Hydrology and Water Resources Survey,Yancheng 224001,China;Wudaogou Hydrology Experimental Station,Research Institute of Water Resources,Bengbu 233000,China;Chongqing Jiaotong University,Chongqing 400074,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China)

机构地区：[1]河北工程大学能源与环境工程学院,河北邯郸056021 [2]江苏省水文水资源勘测局盐城分局,江苏盐城224001 [3]安徽省(水利部淮委)水利科学研究院五道沟水文实验站,安徽蚌埠233000 [4]重庆交通大学,重庆400074 [5]河海大学水文水资源学院,江苏南京210098

出　　处：《水电能源科学》2024年第12期6-9,18,共5页Water Resources and Power

基　　金：邯郸市典型企业节水项目(2021-60);安徽省水联合基金项目(2208085U07);水利部重大科技项目(SKS-2022066)。

摘　　要：利用五道沟实验站1972~2021年106场次降雨径流实测资料,采用回归分析法,开展了不同级别次降雨量P(暴雨、大雨、中雨)、雨前地下水埋深H_(0)(Ⅰ级(0~0.4 m)、Ⅱ级(0.4~0.8 m)、Ⅲ级(0.8~1.2 m)、Ⅳ级(>1.2 m))和前期影响雨量P_(a)(Ⅰ级(17%~20%)、Ⅱ级(20%~23%)、Ⅲ级(23%~26%)、Ⅳ级(>26%))不同情景对产流的影响研究,并构建了多元回归计算模型。结果表明,次降雨量对降雨产流的影响起主要作用,其次为雨前地下水埋深和前期影响雨量;不同降雨级别下,暴雨情景次降雨量与径流呈二次曲线函数关系,大雨情景呈三次曲线函数关系,中雨情景在长时段连绵降雨型且P>35 mm、P_(a)>20%、H_(0)<1.0 m条件下才可产流,呈三次曲线函数关系;在Ⅰ、Ⅲ级雨前地下水埋深情景中,次降雨量与径流均呈三次曲线函数关系,Ⅱ级呈二次曲线函数关系,Ⅳ级呈线性函数关系;在Ⅰ级前期影响雨量情景中,次降雨量与径流呈幂函数关系,Ⅱ级呈三次曲线函数关系,Ⅲ、Ⅳ级均呈二次曲线函数关系;通过统计分析降雨实测数据,径流深最终可表示为次降雨量、雨前地下水埋深和前期影响雨量3因素的函数关系,并建立了暴雨、大雨及中雨情景径流计算模型,拟合优度R2均大于0.80,可用于淮北平原降雨径流预测。Based on the measured data of 106 rainfall runoff from 1972 to 2021 at Wudaogou experimental station,re-gression analysis was used to investigate the impact of the sub-rainfall P(heavy rain,heavy rain,moderate rain),ground-water depth H_(0)(classⅠ:0-0.4 m,classⅡ:0.4-0.8 m,classⅢ:0.8-1.2 m,and classⅣ:>1.2 m)and the antecedent in-fluence rainfall P_(a)(classⅠ:17%~20%,classⅡ:20%-23%,classⅢ:23%-26%,classⅣ:>26%)on the runoff produc-tion at different scenarios,and a multiple regression calculation model was established.The results show that the precipi-tation plays a major role in the influence of rainfall runoff,followed by the groundwater buried depth before the rain and antecedent influence rainfall.Under different rainfall levels,there was a quadratic curve function relationship between the rainfall and runoff in the rainstorm scenario,a cubic curve function relationship in the heavy rain scenario,and a cubic curve function relationship in the moderate rain scenario when the long-term continuous rainfall type with P>35 mm,P_(a)>20%and H_(0)<1.0 m could produce runoff.In the pre-rain groundwater depth scenario of gradeⅠand gradeⅢ,the relationship between sub-rainfall and runoff is cubic curve function,the relationship of gradeⅡis quadratic function,and gradeⅣis linear function.The relationship between secondary rainfall and runoff is a power function in classⅠ,a cubic curve function in classⅡ,and a quadratic curve function in classⅢand classⅣ.Through statistical analysis of the measured rainfall data,the runoff depth can finally be expressed as the function relationship of three factors:secondary rainfall,groundwater buried depth before rain and antecedent influence rainfall.The runoff calculation models of rain-storm,heavy rain and moderate rain scenarios were established,and the goodness of fit R2 is greater than 0.80,which can be used to predict rainfall runoff in Huaibei Plain.

关 键 词：降雨产流 降雨级别 雨前地下水埋深 前期影响雨量 淮北平原 

分 类 号：TV121.1[水利工程—水文学及水资源]