- The seismic SPT test in a tropical soil and the G0/N ratio
- Rocha B.P. ; R.A.A. Pedrini ; H.L. Giacheti
- Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, September 2-6 2013
- Year: 2013
- Site Characterization & In-situ Testing (General) ; Soil Dynamics In-Situ ; Standard Penetration Testing (SPT) ; Geophysics
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- Massive landslide at Utah copper mine generates wealth of geophysical data
- Kristine Pankow ; Jeffrey Moore ; J. Hale ; Keith Koper ; Tex Kubacki ; Katherine Whidden ; Michael McCarter
- Year: 2013
- Geophysics ; Landslides ; Slope Stability
- Abstract
- On the evening of 10 April 2013 (MDT) a massive landslide occurred at
the Bingham Canyon copper mine near Salt Lake City, Utah, USA. The
northeastern wall of the 970-m-deep pit collapsed in two distinct
episodes that were each sudden, lasting ~90 seconds, but separated in
time by ~1.5 hours. In total, ~65 million cubic meters of material was
deposited, making the cumulative event likely the largest non-volcanic
landslide to have occurred in North America in modern times.
Fortunately, there were no fatalities or injuries. Because of extensive
geotechnical surveillance, mine operators were aware of the
instability and had previously evacuated the area. The Bingham Canyon
mine is located within a dense regional network of seismometers and
infrasound sensors, making the 10 April landslide one of the best
recorded in history. Seismograms show a complex mixture of short- and
long-period energy that is visible throughout the network (6–400 km).
Local magnitudes (ML) for the two slides, which are based on
the amplitudes of short-period waves, were estimated at 2.5 and 2.4,
while magnitudes based on the duration of seismic energy (md) were much
larger (>3.5). This magnitude discrepancy, and in particular the
relative enhancement of long-period energy, is characteristic of
landslide seismic sources. Interestingly, in the six days following the
landslide, 16 additional seismic events were detected and located in
the mine area. Seismograms for these events have impulsive arrivals
characteristic of tectonic earthquakes. Hence, it appears that in this
case the common geological sequence of events was inverted: Instead of a
large earthquake triggering landslides, it was a landslide that
triggered several small earthquakes.
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- Reliability of combined active and passive surface wave methods
- D. Boiero ; C. Comina ; S. Foti
- Rivista Italiana Di Geotechnica (RIG), Vol. 41 (2), 39-47
- Year: 2007
- Geophysics
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- Ground Proving Three Seismic Refraction Tomography Programs
- Dennis R. Hiltunen ; Nick Hudyma ; Timothy P. Quigley ; Chandra Samakur
- Geophysics 2006 conference, St. Louis, Missouri, USA.
- Year: 2006
- Geophysics
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- Blind Comparisons Of Shear-Wave Velocities At Closely-Spaced Sites In San Jose, California
- Michael W. Asten ; David M. Boore
- U.S. Geological Survey Open-File Report 2005-1169 Version 1.0
- Year: 2005
- Geophysics
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- An Evaluation of Methods and Available Software for Seismic Refraction Tomography Analysis
- Jacob R. Sheehan ; William E. Doll ; Wayne A. Mandell
- Journal of Environmental & Engineering Geophysics; March 2005; Vol. 10; pp. 21-34.
- Year: 2005
- Geophysics
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- The Northern Walker Lane Refraction Experiment: Pn Arrivals and the Northern Sierra Nevada Root
- John N. Louie ; Weston Thelen ; Shane B. Smith ; Matthew Clark ; S. Pullammanappallil ; B. Scott
- Tectonophysics, vol. 388, no. 1-4, p. 253-269.
- Year: 2004
- Geophysics
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- Numerical and experimental comparison between 2-station and multistation methods for spectral analysis of surface waves
- S. Foti
- Rivista Italiana Di Geotechnica (RIG), Vol. 36 (1), 11-22
- Year: 2002
- Geophysics
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- Faster, Better: Shear-Wave Velocity to 100 Meters Depth From Refraction Microtremor Arrays
- John N. Louie
- Bulletin of the Seismological Society of America, vol. 91, no. 2, p. 347-364. Pdf version.
- Year: 2001
- Geophysics
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- Geophysical Exploration for Engineering and Environmental Investigations
-
- Engineering Design Manual (EM 1110-1-1802), available by the US Army Corps of Engineers
- Year: 1995
- Geophysics
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- Use Of GPR On Two Sites With Voids To Enable Safer Work And Targeted Probing
- C.G.C. Hughes ; KJ.M.Watson Read&
- International Conference on Geotechnical and Geophysical Site Characterization - Fifth International Conference on Geotechnical and Geophysical Site Characterization (ISC’5)
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- Geophysics ; Site Characterization & In-situ Testing (General)
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- NON-DESTRUCTIVE TESTING BY A NEW GENERATION GEORADAR SYSTEM
- Fan-NianKong ; TorreLasseBy ; HaraldWesterdahl
- International Conference on Soil Mechanics and Geotechnical Engineering - 13th International Conference on Soil Mechanics and Foundation Engineering (New Delhi)
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- Geophysics
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- Fractures location on karstified limestone surfaces by Electrical Resistivity Tomography Characterization
- J.A. Porres-Benito ; S.J. Ibanez ; S.V. Ortiz-Palacio&López-Ausín
- International Conference on Geotechnical and Geophysical Site Characterization - Fifth International Conference on Geotechnical and Geophysical Site Characterization (ISC’5)
-
- Geophysics
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- Geophysical testing for rock assessment and pile design
- L.A. Cheenikal ; H.G. Poulos ; R.J. Whiteley ;
- Regional Conferences on Soil Mechanics and Geotechnical Engineering - 10th Australia New Zealand Conference on Geomechanics
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- Geophysics ; Foundation Design / Construction ; Pile Foundations
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- Estimation of in-situ moduli of deep soil cement using P-S logger
- PorbahaAli ; GhaheriFarid ; J. PuppalaAnand
- International Conference on Soil Mechanics and Geotechnical Engineering - 16th International Conference on Soil Mechanics and Geotechnical Engineering (Osaka)
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- Geophysics
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