穩定旗津用水 高雄第2條過港送水管7月完工
01/02/2022 高雄, 台灣
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水公司斥資1.4億元,推動第二條過港送水管工程,以HDD潛鑽工法於海床下穿越旗津漁港,相當於10層樓深度,埋設逾1公里長管線,預計今年7月完工,穩定旗津區民生用水,增加備援用水每日1.02萬立方公尺。
旗津區民生用水仰賴高雄港過港隧道600毫米鋼管送水,自1984年7月完工通水迄今逾32年,近年來管線部分鏽蝕嚴重,也曾發生漏水事件,是通往旗津區唯一的送水管線,且維修或更新不易,具有供水風險。
水公司斥資1.4億元,推動旗津區第二條過港送水管工程,以HDD潛鑽工法於海床下,穿越旗津漁港,埋設管徑710毫米的HDPE高密度聚乙烯管線,相當於地下30公尺、大約10層樓深度,避免影響航道與港灣既有結構。
南工處表示,工程以3種工法施作,除了HDD潛鑽工法埋管1075公尺,穿越旗津漁港外,並於旗津停車場、前鎮擴建路兩端,分別以明挖埋設534公尺、推進施工32公尺,銜接既有自來水管線,避免影響交通。
值得一提的是,新埋設的HDPE高密度聚乙烯管線使用年限達50年,可避免年久腐蝕,且埋設在海床下,不容易遭受破壞等外力影響,相較於原來鋼管因濕度高生鏽容易漏水,HDPE高密度聚乙烯管線使用年限更長。
南工處表示,工程於去年10月進場施工,克服多單位協商用地取得,預計今年7月完工,建置雙幹管完成,穩定旗津區供水,增加備援用水每日1.02萬立方公尺,後續原有管線將可進行修漏,有助於降低漏水率。
新聞來源:https://news.ltn.com.tw/news/life/breakingnews/3787955
水公司南工處推動第二條過港送水管工程,圖為水平鑽掘施工拉管。