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Culverts in ancient China
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Culverts in ancient China
Encyclopedia
理学
古代涵管
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Culverts in ancient China
古代涵管
古代又称瓦窦、涵洞,修在塘堰或渠道的堤岸中,用于向农田放水;建于大江大河、湖泊的堤岸中,用于泄水、淤灌等;或建于古城城墙中,用于城市供排水。涵洞可为开敞式,也可设闸门节制。
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