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Publications tagged with [seismic velocities]

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<p>With the increasing population and the consequent needs for transport facilities, the construction of tunnels in urban environments is fast growing. Tunneling at each depth of the soil, causes changes in the earth&rsquo;s surface; this is more important ...
Reference: Open Journal of Civil Engineering, 2016, 6, 242-253
<p>Knowledge of seismic properties in an earthquake rupture zone is essential for understanding the factors controlling rupture dynamics. We use data from aftershocks following the Maule earthquake to derive a three-dimensional seismic velocity model of the ...
Reference: GEOPHYSICAL RESEARCH LETTERS, VOL. 39, L19308, doi:10.1029/2012GL053184, 2012
Ninety eight oriented hand samples were collected from five sites represent calcareous outcrop of Euphrates Formation. These sites were chosen as a completed recovery for a region located at Kufa Quarry-Bahar Al-Najaf area / Middle of Iraq, in order to perform ...
Reference: Iraqi National Journal of Earth Sciences, Vol.11, No. 2, pp. 11-36 , 2011
<p>The tunnel squeezing phenomenonwas first described byTerzaghi (1946)who associated squeezing mainly with clay-rich rocks. Consistent with Terzaghi&rsquo;s original description, the focus of this paper is on tunnels in clays and clay-rich rocks such as clayshales. ...
Reference: Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
This study was made to determine whether seismic data can be used to obtain satisfactory design earthwork factors for roadway excavation. The study shows an apparent correlation between seismic velocity and earthwork factor for the three types of rock studied. ...
Filed under: Soil Mechanics -  Earthworks
Reference: CA-HY-MR-2103-4-72-37