芜申运河开通对固城湖水量影响分析
发布时间：2018-10-09 16:28
【摘要】：芜申运河是重要的省际干线航道,规划对其整治达到三级航道标准后通航,而芜申运河通航需要固城湖上的通航河道开闸。固城湖为重要的饮用水源地,开闸通航对固城湖水量影响较大。通过建立模型计算得出,每天开闸10次固城湖水量损失约为1.71×10~8m~3/年,每天开闸20次水量损失约为2.87×10~8m~3/年;而固城湖的常态水位为9.5m,相应库容为1.28×10~8m~3,通航对固城湖水量的年损失量占到了固城湖常态水量的1.34~2.24倍左右。如果开闸20次,固城湖需要外调补水以保证水量满足用水需求。经计算,在90%、75%、50%的降水保证率下,需要外调补水保证量达0.64×10~8、0.61×10~8、0.12×10~8m~3/年,占固城湖常态库容的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.
【作者单位】： 江苏省水文水资源勘测局南京分局;江苏省水文水资源勘测局;
【分类号】：P333.5
本文编号：2259993
[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.
【作者单位】： 江苏省水文水资源勘测局南京分局;江苏省水文水资源勘测局;
【分类号】：P333.5
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1 郭红丽;龚来存;沈乐;;南京固城湖干涸水文情势研究及成因分析[J];人民长江;2012年24期
，本文编号：2259993
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