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科罗拉多河上的格林峡坝,其左岸泄洪隧洞现正准备进行空蚀试验。1983年春汛期间,隧洞空蚀破坏特别严重。为了防止空蚀再度发生,已对隧道设计作了重大修改,防蚀办法是根据丹佛垦务局实验室所做的大量模型试验.计划采用掺气槽.
The Green Gap Dam on the Colorado River is being prepared for cavitation erosion testing on its left bank spillway tunnel. During the spring flood season in 1983, tunnel cavitation damage was particularly serious. In order to prevent the recurrence of cavitation, significant changes have been made in the design of the tunnel. The corrosion protection method is based on a large number of model tests performed by laboratories in Denver Reclamation Bureau.