Closure to “Seismic Rehabilitation of Earth Dams” by W. F. Marcuson III, P. F. Hadala, and R. H. Ledbetter

Marcuson, William F.; Hadala, Paul F.; Ledbetter, Richard

doi:10.1061/(asce)1090-0241(1997)123:5(494)

Cited by 2 publications

(2 citation statements)

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“…On the other hand, the use of a permanent and unidirectional force to represent the seismic shaking in pseudostatic analyses significantly underestimates the seismic stability of a slope. Consequently, scaling coefficients must be chosen to account for only a fraction of the PGA, which in fact is effective only for a very short time (Blake et al, 2002;Jibson, 2011;Jibson & Michael, 2009;Kramer, 1996;Marcuson, 1981;Seed, 1979;Terzaghi, 1950;Wieczorek et al, 1985).…”

Section: Numerical Approaches To Assess Stability and Permanent Displ...mentioning

confidence: 99%

Earthquake‐Induced Chains of Geologic Hazards: Patterns, Mechanisms, and Impacts

Fan

Scaringi

Korup

et al. 2019

Reviews of Geophysics

614

325

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Large earthquakes initiate chains of surface processes that last much longer than the brief moments of strong shaking. Most moderate‐ and large‐magnitude earthquakes trigger landslides, ranging from small failures in the soil cover to massive, devastating rock avalanches. Some landslides dam rivers and impound lakes, which can collapse days to centuries later, and flood mountain valleys for hundreds of kilometers downstream. Landslide deposits on slopes can remobilize during heavy rainfall and evolve into debris flows. Cracks and fractures can form and widen on mountain crests and flanks, promoting increased frequency of landslides that lasts for decades. More gradual impacts involve the flushing of excess debris downstream by rivers, which can generate bank erosion and floodplain accretion as well as channel avulsions that affect flooding frequency, settlements, ecosystems, and infrastructure. Ultimately, earthquake sequences and their geomorphic consequences alter mountain landscapes over both human and geologic time scales. Two recent events have attracted intense research into earthquake‐induced landslides and their consequences: the magnitude M 7.6 Chi‐Chi, Taiwan earthquake of 1999, and the M 7.9 Wenchuan, China earthquake of 2008. Using data and insights from these and several other earthquakes, we analyze how such events initiate processes that change mountain landscapes, highlight research gaps, and suggest pathways toward a more complete understanding of the seismic effects on the Earth's surface.

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Section: Numerical Approaches To Assess Stability and Permanent Displ...mentioning

confidence: 99%

Earthquake‐Induced Chains of Geologic Hazards: Patterns, Mechanisms, and Impacts

Fan

Scaringi

Korup

et al. 2019

Reviews of Geophysics

614

325

View full text Add to dashboard Cite

show abstract

“…There are currently 14 geotechnical centrifuges located in the United States as shown in Table 1 (Dobry and Elgamal, 1989;Marcuson et al, 1995). Eight of these have shakers that can be used for earthquake testing.…”

Section: Centrifuge Facilitesmentioning

confidence: 99%