Buttress Design Earthquake-Induced Slidesby Erwin Long,
Serial Information: Journal of the Soil Mechanics and Foundations Division, 1967, Vol. 93, Issue 4, Pg. 595-609
Document Type: Journal Paper
The Fourth Avenue slide resulting from the 1964 Alaska Earthquake was a retrogressive translatory slide, creating a graben and horst configuration with negligible flattening of the slope or passive stabilization of the slide toe. The 900-ft-wide by 1800-ft-long slide area endangered the heart of the Anchorage business area. Stabilization was accomplished by the construction of a gravel buttress designed to resist forces caused by sand or clay liquefaction, horizontal or circular sliding, or slumping, static or dynamic forces. New methods of slide analysis had to be devised for use in conjunction with accepted methods of normal slide analysis. Recommendations on building restrictions are provided.
Subject Headings: Earthquakes | Seismic design | Sliding effects | Soil liquefaction | Soil stabilization | Clays | Anchorages | Slope stability | Geological faults | North America | Alaska | United States
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