圖書典藏及影音數位平台

1.伏流水與地下水資源於枯旱或緊急情況下作為備援水源角色日趨重要 2.盤點評估烏溪流域伏流水可能開發利用區位 3.評估作為高濁度時中部地區備援水源或與地面水聯合運用增供常態水源 4.擇選優良位置進行初步評估

I.According to the analysis of the remaining water available in the river, the remaining water volume of the mainstream of Wuxi (the lower reaches of Wuxi Bridge) and the lower reaches of Maoluoxi has only the remaining water available from June to November. It is recommended to develop towards the backup water source. II.The net infiltration of Wuxi from Wuxi Bridge to Xiwei Bridge is 177,000 cubic meters per day, and the net infiltration of Xiwei Bridge to Cat Luoxi Confluence is 34,000 cubic meters per day. Cat Luoxi Confluence to Dali The net infiltration of the stream at the stream is 92,000 cubic meters per day, and the net infiltration of the Daliuxi to the Dadu Bridge is 8,000 cubic meters per day. The net infiltration of the Luoxi River Basin from Nangang Bridge to Limin Bridge is 33,000 cubic meters per day, and the net infiltration of Limin Bridge to Cat Luoxi Confluence is 20,000 cubic meters per day. III.After the hydrogeological conditions, water quality conditions, the location of the water supply target, the environmental impact of the water intake, the potential energy of the river section and the combined analysis of the water source, the best development location is Beigangxi Daqiyu and Cat Luoxi Confluence~ 74 bridge and other sections. IV.The plan is to set up a effluent water intake facility in the upper reaches of Beigangxi Daqi. The purpose of the project is to set up a high-turbidity backup and drought emergency support for Beigangxi Daqi. The water intake type is a horizontal water collection pipe with a length of 350 meters. The designed water intake is 0.7 million cubic meters per day, the construction cost is about 65 million yuan, the raw water cost is about 18.6 yuan / cubic meter, and the cost is 0.71. V.The plan is to set up two effluent water intake facilities in Cat Luoxi Confluence to Taiwan 74 Bridge. The purpose of the project is to provide high-turbidity backup in Changhua City and dry emergency rescue in Changhua area. The water intake type is horizontal water collection pipe. The total length of the pipe is 800 meters (400 meters, 2 places), the designed water intake is 80,000 cubic meters per day, the construction cost is about 389 million yuan, the raw water cost is about 9.6 yuan / cubic meter, and the benefit ratio is 1.1. VI.Regarding economic orientation and environmental orientation, both Section 1 and Section 2 are in line with the feasible principle; in terms of cost-effectiveness, the sector benefit ratio is about 1.1, which is comparable to other domestic water resources development projects; Although the benefit ratio is less than 1, because the engineering characteristics are redundant, considering the factors such as the water supply in the stable area and the social cost that may be burdened, it is recommended that development should be carried out to stabilize the water supply in the country.