【摘要】：蕪申運河是重要的省際干線航道,規(guī)劃對其整治達到三級航道標準后通航,而蕪申運河通航需要固城湖上的通航河道開閘。固城湖為重要的飲用水源地,開閘通航對固城湖水量影響較大。通過建立模型計算得出,每天開閘10次固城湖水量損失約為1.71×10~8m~3/年,每天開閘20次水量損失約為2.87×10~8m~3/年;而固城湖的常態(tài)水位為9.5m,相應庫容為1.28×10~8m~3,通航對固城湖水量的年損失量占到了固城湖常態(tài)水量的1.34~2.24倍左右。如果開閘20次,固城湖需要外調補水以保證水量滿足用水需求。經(jīng)計算,在90%、75%、50%的降水保證率下,需要外調補水保證量達0.64×10~8、0.61×10~8、0.12×10~8m~3/年,占固城湖常態(tài)庫容的50%~9%。
[Abstract]:The Wushen Canal is an important interprovincial trunk channel, which is planned to reach the standard of the third class waterway, and the navigation of the Wushen Canal requires the opening of the navigable channel on the Gucheng Lake. Gucheng Lake is an important source of drinking water. The model calculation shows that the water loss of Gucheng Lake is about 1.71 脳 10~8m~3/ per day and 20 times per day is about 2.87 脳 10~8m~3/. The normal water level of Gucheng Lake is 9.5 m, and the corresponding storage capacity is 1.28 脳 10 ~ (-8) m ~ (-1). The annual loss of the water volume of Gucheng Lake by navigation accounts for about 1.34 ~ 2.24 times of the normal amount of water in Gucheng Lake. If the gate is opened 20 times, Gucheng Lake needs to recharge water to ensure the quantity of water to meet the water demand. It is calculated that under the rainfall guarantee rate of 90% and 75%, the amount of water needed to be replenished is 0.64 脳 10 ~ (8) ~ 0.61 脳 10 ~ (8) ~ 0.12 脳 10~8m~3/, accounting for 50 ~ 9% of the normal storage capacity of Gucheng Lake.
【作者單位】： 江蘇省水文水資源勘測局南京分局;江蘇省水文水資源勘測局;
【分類號】：P333.5

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1 郭紅麗;龔來存;沈樂;;南京固城湖干涸水文情勢研究及成因分析[J];人民長江;2012年24期

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本文編號：2259993