Results 101 to 110 of about 145,917 (290)

Developing a site-conditions map for seismic hazard Assessment in Portugal [PDF]

open access: yes, 2012
The evaluation of site effects on a broad scale is a critical issue for seismic hazard and risk assessment, land use planning and emergency planning.
Borges, J. F.   +7 more
core   +1 more source

An Efficient Quasi‐Static Condensation‐Based Framework for Seismic Analysis of Multi‐Supported Secondary Structures

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Multi‐supported non‐structural components (NSCs) are prone to seismic damage, yet their response prediction remains challenging when support motions are spatially incoherent. This study proposes an enhanced quasi‐static condensation (EQSC) method for linear, lightweight, dynamically detuned multi‐supported NSCs under the neglect of primary ...
Duozhi Wang   +5 more
wiley   +1 more source

Seismic Dynamics of Pipeline Buried in Dense Seabed Foundation

open access: yesJournal of Marine Science and Engineering, 2019
Submarine pipeline is a type of important infrastructure in petroleum industry used for transporting crude oil or natural gas. However, submarine pipelines constructed in high seismic intensity zones are vulnerable of attacks from seismic waves.
Yan Zhang   +3 more
doaj   +1 more source

Asymptotic wave-splitting in anisotropic linear acoustics

open access: yes, 2009
Linear acoustic wave-splitting is an often used tool in describing sound-wave propagation through earth's subsurface. Earth's subsurface is in general anisotropic due to the presence of water-filled porous rocks.
B.L.G. Jonsson   +33 more
core   +1 more source

Study on the Influence of Slope Static Load on Shallow Lining Support Structure

open access: yesEnergy Science &Engineering, EarlyView.
On the basis of the background of the shallow‐buried main adit supported by stone lining, the mechanical model of the supporting structure is constructed, and the stability of the supporting structure is analyzed by using the methods of field investigation, theoretical analysis, and numerical simulation.
Hongwei Wang   +3 more
wiley   +1 more source

Nonlinear Seismic Response of Tunnel Structures under Traveling Wave Excitation

open access: yesBuildings
Tunnels traditionally regarded as resilient to seismic events have recently garnered significant attention from engineers owing to a rise in incidents of seismic damage.
Xiaoqing Suo   +4 more
doaj   +1 more source

The affect distance analysis of tunnel blasting vibration on adjacent buildings

open access: yesMATEC Web of Conferences, 2016
In the formation of the blasting seismic wave transmission is a complex mechanical process. Blasting seismic wave in different geological structure formation of the interface, diffraction, reflection, projection as the incident Angle is different, all ...
Wang Hui, Xu Cai, Yang Xuerui
doaj   +1 more source

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

open access: yesGeological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo   +3 more
wiley   +1 more source

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