Results 91 to 100 of about 22,659,233 (405)

A continuous 500‐year sediment record of inundation by local and distant tsunamis in South‐Central Chile (40.1°S)

open access: yesThe Depositional Record, EarlyView.
Tsunami events over the past 500 years inundated Laguna Gemela West (Chile), leading to distinct sandy deposits in the lake record. This provides a complete perspective on tsunami inundation, including giant tsunamis, small local tsunamis and tsunamis that originated >100 km away from the site.
Jasper Moernaut   +8 more
wiley   +1 more source

Seismic performance of concrete tunnel–sand–pile interaction by the shake table test

open access: yesDeep Underground Science and Engineering, EarlyView.
This research presents the square root sum of squares response of displacements and tunnel moments under the Kobe and Loma Prieta seismic excitations with a peak ground acceleration of 0.05 g for various dry relative densities of local sand in Bangladesh.
Md. Foisal Haque, Mehedi A. Ansary
wiley   +1 more source

Seismic vulnerability maps of Timisoara historical center based on fragility curves [PDF]

open access: yes, 2016
The seismic vulnerability assessment on a territorial scale requires the application of simplified procedures. Data collection is usually carried out by adopting external inspections; for this reason the knowledge gained for the considered buildings is ...
DA PORTO, Francesca   +7 more
core   +1 more source

A review of multiscale numerical modeling of rock mechanics and rock engineering

open access: yesDeep Underground Science and Engineering, EarlyView.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

Comportamiento de un puente histórico de arco de albañilería ante cargas dinámicas

open access: yesIngeniería e Investigación, 2009
En el presente artículo se describe el proceso de análisis al que fue sometido un puente histórico de arco de ladrillo construido en Colombia durante el siglo XVIII con el fin de predecir su comportamiento ante cargas producidas por sismos y determinar ...
Yesid Mauricio Ospina   +2 more
doaj  

Prediction of RC multi-story construction performance with a new proposed design spectrum approach

open access: yesTikrit Journal of Engineering Sciences, 2015
The consideration of novel response spectrum analysis to check the reinforced concrete RC buildings resistance towards the seismic risks in Iraq has not been investigated so far.
James H Haido
doaj   +1 more source

Performances of the UNDERground SEISmic array for the analysis of seismicity in Central Italy

open access: yesAnnals of Geophysics, 2009
This paper presents the first results from the operation of a dense seismic array deployed in the underground Physics Laboratories at Gran Sasso (Central Italy). The array consists of 13 short-period, three-component seismometers with an aperture of about 550 m and average sensor spacing of 90 m.
F. Tronca   +5 more
openaire   +4 more sources

Seismic Emissions from a Highly Impulsive M6.7 Solar Flare

open access: yes, 2008
On 10 March 2001 the active region NOAA 9368 produced an unusually impulsive solar flare in close proximity to the solar limb. This flare has previously been studied in great detail, with observations classifying it as a type 1 white-light flare with a ...
A. Kosovichev   +23 more
core   +3 more sources

The 1980, 1997 and 1998 Azores earthquakes and its seismotectonic implications [PDF]

open access: yes, 2007
We have studied the focal mechanisms of the 1980, 1997 and 1998 earthquakes in the Azores region from body-wave inversion of digital GDSN (Global Digital Seismograph Network) and broadband data. For the 1980 and 1998 shocks, we have obtained strike– slip
Bezzeghoud, M.   +4 more
core   +1 more source

Blasting effects of cross‐fault deep‐buried excavation on adjacent existing tunnel stability

open access: yesDeep Underground Science and Engineering, EarlyView.
Based on the theoretical analysis of cylindrical wave propagation in a deep rock mass in the fault with a filling layer, the calculation method of peak particle velocity caused by wave propagation in the existing tunnel is established. The viscoelastic characteristics of a rock mass are examined in the analysis.
Shaobo Chai   +5 more
wiley   +1 more source

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