摘要
薄膜阀是专为渠道塑膜加混凝土薄板防渗衬砌设计的,具有逆止特性的排水(气)阀。通过水工模型试验及黄材水库沙河干渠刁子潭渠段的实际运用,证明该阀具有动作灵敏、排水(气)流量大、逆止性能好、构造简单、施工方便、造价低廉、检修方便等优点,可有效地排除渠道外水(气)压力,保持衬砌的稳定和安全。
The membrane valve is designed for lined canal lining by plastic membrane and concrete plate which is a drainage inverted valve. The valve has many advantages of sensitive action, large drainage flow, good invert perfor- mance, simple structure, cheap cost, easy construction, testing and repairing which are proved by the modelling test and practical operation in a canal section of the Huang-cai resevoir. The membrane valve is effective for release the canal bank soil water pressure and maintaining the lining stable and safety.
关键词
薄膜阀
逆止特性
排水
压力
membrane valve
inverted character
drainage
pressure release
