Performance of Earth Dams During Earthquakes

Autor:	H B Seed, P. A. de Alba, Faiz I. Makdisi
Rok vydání:	1978
Předmět:	geography geography.geographical_feature_category Piping General Engineering Foundation (engineering) Magnitude (mathematics) law.invention Richter magnitude scale Hydraulic fill law Erosion Geotechnical engineering Saturated soils Levee Geology
Zdroj:	Journal of the Geotechnical Engineering Division. 104:967-994
ISSN:	2690-246X 0093-6405
Popis:	Particular emphasis is given to dam performance in six major earthquakes—San Francisco (1906); Ojika, Japan (1939); Fallon, Nevada (1954); Kern County, California (1952); Tokachi-Oki, Japan (1967); and San Fernando, California (1971). An attempt is made to determine relationships between embankment characteristics and observed performance. It is concluded that (1)Hydraulic fill dams on stable foundations can safely withstand accelerations up to about 0.2g from Magnitude 6.5 earthquakes; (2)virtually any well-built dam can withstand moderately strong shaking up to about 0.2g or more with no detrimental effects; (3)dams built of clay soils seem to be able to withstand extremely strong shaking from large magnitude earthquakes without significant damage; (4)dams may fail up to 24 hrs after being shaken by an earthquake probably due to cracking leading to piping and erosion; and (5)primary concern should be given to dams constructed of saturated sandy soils or on sand foundation materials. Prototype performance is cited as a basis for these conclusions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::62f958b0858e90e18ce3c56694bd4b7f https://doi.org/10.1061/ajgeb6.0000675 Zobrazit plný text záznamu