灌溉排水
灌溉排水
관개배수
IRRIGATION AND DRAINAGE
2000年
3期
16-19
,共4页
张广燕%黄介生%沈荣开%么振东
張廣燕%黃介生%瀋榮開%麽振東
장엄연%황개생%침영개%요진동
南方滨海河网%非恒定出流
南方濱海河網%非恆定齣流
남방빈해하망%비항정출류
river network%littoral area in south china%unsteady outflow
根据广东省台山市都斛镇灌排河网的特点，建立了河网非恒定出流数学模型。该模型根据潮水位的变化，模拟河网的水位和流量变化过程。通过调节挡潮闸的运行时间和开启度，使该系统既能满足排涝要求，又能合理控制河网水位，使之满足农作物生长对地下水位的要求。
根據廣東省檯山市都斛鎮灌排河網的特點，建立瞭河網非恆定齣流數學模型。該模型根據潮水位的變化，模擬河網的水位和流量變化過程。通過調節擋潮閘的運行時間和開啟度，使該繫統既能滿足排澇要求，又能閤理控製河網水位，使之滿足農作物生長對地下水位的要求。
근거광동성태산시도곡진관배하망적특점，건립료하망비항정출류수학모형。해모형근거조수위적변화，모의하망적수위화류량변화과정。통과조절당조갑적운행시간화개계도，사해계통기능만족배로요구，우능합리공제하망수위，사지만족농작물생장대지하수위적요구。
Based on specific characteristics of river network in Duhu town of Taishan city, Guangdongprovince, a unsteady outflow model is established. The model is used to calculate water level and dis-charge of river network with tidal level as independent variable. The water level of the river networkcan be regulated effectively to meet crop demand, by controlling open time and lifting height of thetidal gate.
