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Hydraulic Fill Dam Made Earthquake Resistant

by H. J. Billings, (M.ASCE), Manager of Engineer Services; East Bay Municipal Utility District, Oakland, Calif.,


Serial Information: Civil Engineering—ASCE, 1985, Vol. 55, Issue 6, Pg. 56-59


Document Type: Feature article

Abstract:

San Pablo Dam, near the San Andreas fault, constructed in 1919-21 by hydraulic fill methods, was found to be susceptible in places to liquefaction under seismic loading. The dam has been made much more earthquake-resistant by adding a buttress fill covering the dam's upstream face, and drains in the dam and in the new buttress to dissipate more speedily seismically induced increases in soil pore pressures. The investigation, corrective design and construction procedures are described.

Subject Headings: Hydraulic fills | Hydraulic loads | Soil pressure | Seismic tests | Seismic loads | Soil liquefaction | Seismic effects

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