Pressures in Water on and Near Amchitka Island, Milrow and Cannikin
Abstract
Measurements of sea floor ground motion and water pressures resulting from explosions in the underlying rock have been taken: in the Milrow nuclear shot, in the moderately deep water of the surrounding sea; in the Cannikin nuclear shot, in on-shore ponds and streams. Repeated reflections from the water surface and the sea floor were found to modify the pressure wave shapes from those encountered in rock. In Milrow's deep water measurements, this principally resulted in reduced peak pressures; in Cannikin's shallow water measurements, pressure waveforms closely resembled acceleration waveforms. A simple but adequate theory describing these phenomena has been developed. Spall and/or cavitation in water generally results in spray and geysering in on-shore ponds and streams, and white water and spouts off-shore. Bulk or distributed cavitation was apparently present on Cannikin to a much greater extent than on Milrow.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1973
- Accession Number
- ADA385435
Entities
People
- M. L. Merritt