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Publications by [Sitar N.]

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<p>Observations of the performance of basement walls and retaining structures in recent earthquakes show that failures of basement or deep excavation walls in earthquakes are rare even if the structures were not designed for the actual intensity of the earthquake ...
Reference: STATE OF CALIFORNIA DEPARTMENT OF TRANSPORTATION TECHNICAL REPORT 65A0367
<p>Observations of the performance of many different types of retaining structures in recent earthquakes show that failures of retaining structures, including braced excavation supports and basement walls, are rare even if the structures were not designed ...
Reference: STATE OF CALIFORNIA DEPARTMENT OF TRANSPORTATION TECHNICAL REPORT 65A0367
<p>Scour of rock is a complex process and can be very problematic for dams when excessive scour threatens dam stability. Removal of individual rock blocks is one of the principal mechanisms by which scour can occur, particularly in unlined spillways and on ...
Reference: Report No. UCB GT 12‐02
The purpose of this project was to demonstrate the capabilities of mobile devices for advanced computation and analysis. bSLOPE, is a slope stability code adapted for iOS and for iPad using a new computational engine based on the work of Tabarroki (Tabarroki ...
Reference: Geotechnical Engineering Report No. UCB/GT/12-01, UC Berkeley
Tectonic deformation from the 2010 Maule (Chile) Mw 8.8 earthquakeincluded both uplift and subsidence along about 470 km of the central Chilean coast. In the south, deformation included as much as 3 m of uplift of the Arauco Peninsula, which produced emergent ...
Reference: Earthquake Spectra, Volume 28, No. S1, pages S39–S54, June 2012; 2012, Earthquake Engineering Research Institute
<p>At least 135 rock falls have occurred from Glacier Point in Yosemite Valley since 1870. Rock falls in 1996 and 1998&ndash;1999 led to hypotheses that these events were triggered by water system discharges from visitor facilities (leachfield and storage ...
Filed under: Rock Mechanics -  Rock Falls
Reference: Landslides and Engineered Slopes: Protecting Society through. Improved Understanding – Eberhardt et al. (eds) © 2012 Taylor & Francis Group, London, ISBN 978-0-415-62123-6
We analyzed a combination of airborne and terrestrial LiDAR, high-resolution photography, seismic, and acoustic data in order to gain insights into the initiation, dynamics, and talus deposition of a complex rock fall. A large (46 700 m<sup>3</sup>) rock fall ...
Filed under: Rock Mechanics -  Rock Falls
Reference: EARTH SURFACE PROCESSES AND LANDFORMS Earth Surf. Process. Landforms 37, 680–691 (2012)
<p>Coastal landslides in weakly lithified sediment are a common occurrence in many parts of the world, including the west coast of the United States. Here, geologically young (Quaternary), marine terrace deposits form steep, near vertical cliff exposures up ...
Reference: Landslides and Climate Change
The 2002 M7.9 Denali fault earthquake resulted in 340 km of ruptures along three separate faults, causing widespread liquefaction in the fluvial deposits of the alpine valleys of the Alaska Range and eastern lowlands of the Tanana River. Areas affected by liquefaction ...
Reference: Earthquake Spectra (2004)
<p>In this paper, we present a broad overview of the field case histories available for improved sites that have been subjected to strong ground shaking. This work is part of a larger research project intended to establish relationships between remediation ...
Reference: Proceedings of the 4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, Paper No. 10.15