人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
5期
75-78,106
,共5页
水污染事故%数学模型%水库调度%汉江
水汙染事故%數學模型%水庫調度%漢江
수오염사고%수학모형%수고조도%한강
water pollution accident%mathematical model%reservoir regulation%Hanjiang River
为了合理应对汉江中下游地区突发性水污染事故，应建立有效的事故应急预案。利用平面二维水动力水质模型，分析了汉江丹襄段不同位置发生水污染事故时，丹江口水库不同应急调度方式对污染物的稀释掺混作用，探讨了丹江口水库应急调度的可行性和有效性。各调度方案的计算结果表明，短历时大流量工况的作用效果优于长历时小流量工况；丹江口水库应急调度对王甫洲以上的江段效果明显，对于离水库较远的下游河段，效果并不显著。
為瞭閤理應對漢江中下遊地區突髮性水汙染事故，應建立有效的事故應急預案。利用平麵二維水動力水質模型，分析瞭漢江丹襄段不同位置髮生水汙染事故時，丹江口水庫不同應急調度方式對汙染物的稀釋摻混作用，探討瞭丹江口水庫應急調度的可行性和有效性。各調度方案的計算結果錶明，短歷時大流量工況的作用效果優于長歷時小流量工況；丹江口水庫應急調度對王甫洲以上的江段效果明顯，對于離水庫較遠的下遊河段，效果併不顯著。
위료합리응대한강중하유지구돌발성수오염사고，응건립유효적사고응급예안。이용평면이유수동력수질모형，분석료한강단양단불동위치발생수오염사고시，단강구수고불동응급조도방식대오염물적희석참혼작용，탐토료단강구수고응급조도적가행성화유효성。각조도방안적계산결과표명，단력시대류량공황적작용효과우우장력시소류량공황；단강구수고응급조도대왕보주이상적강단효과명현，대우리수고교원적하유하단，효과병불현저。
In order to reasonably cope with the sudden water pollution accident in mid-lower area of Hanjiang River, effective emergency plan should be established. By two-dimensional hydrodynamic and water quality model, the pollutant dilution and mixing effectiveness in Danjiangkou-Xiangyang reach of Hanjiang River by outflow from Danjiangkou Reservoir under different regulation modes are analyzed when a sudden pollution accident occurs in different sites, and the feasibility and effectiveness of e-mergency regulation of Danjiangkou Reservoir are discussed. The analysis results show that short-term and larger discharge op-eration of the reservoir is more effective than that of long-term and smaller discharge operation;for farther river reach from the reservoir, the pollutant dilution effectiveness by outflow from Danjiangkou reservoir with emergency regulation is not significant while for the upstream river reach of Wanfuzhou Hydropower Station, the pollutant dilution effectiveness is satisfactory.
