Results 101 to 110 of about 2,068 (300)

Near surface geophysical prospecting using engineering seismics and electric resistivity tomography [PDF]

open access: yes, 2011
W artykule wymieniono i omówiono kilka przykładów badań geofizycznych (i ich wyników) wykonanych przez Przedsiębiorstwo Badań Geofizycznych Sp. z o.o., dotyczących płytkiej prospekcji ośrodka geologicznego. Przedstawione przykłady odnoszą się do badań, w
Pacanowski, G., Ostrowski, S.
core  

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

open access: yesDeep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu   +3 more
wiley   +1 more source

Lost in the North Sea-Geophysical and geoarchaeological prospection of the Rungholt medieval dyke system (North Frisia, Germany). [PDF]

open access: yesPLoS One, 2022
Wilken D   +10 more
europepmc   +1 more source

Automated phase attribute-based picking applied to reflection seismics

open access: yes, 2016
We have applied an attribute-based autopicking algorithm to reflection seismics with the aim of reducing the influence of the user’s subjectivity on the picking results and making the interpretation faster with respect to manual and semiautomated ...
DOSSI, MATTEO   +3 more
core   +1 more source

Dynamic Instability of Pile Foundations Under Real Earthquake Excitation

open access: yesEarthquake Engineering and Resilience, EarlyView.
This paper investigates the dynamic instability of pile foundations subjected to real seismic excitation through numerical analysis. A novel numerical method is proposed for evaluating the dynamic instability of systems whose equation coefficients are available only as digital discrete data. Parametric studies is conducted to investigate the effects of
Jian Deng, Diego Galvez
wiley   +1 more source

Deep crustal refraction and reflection seismics. Crustal and sedimentary structure and geodynamic evolution of the West Antarctic continental margin and Pine Island Bay

open access: yes, 2018
how to cite:Gohl, K., Uenzelmann-Neben, G., Eagles, G., Fahl, A., Feigl, T., Grobys, J., Just, J., V., L., Lensch, N., Mayr, C., Parsiegla, N., Rackebrandt, N., Schluter, P., Suckro, S., Zimmermann, K., Gauger, S., Bohlmann, H., Netzeband, G. & Lemenkova,
Polina Lemenkova (5855411)
core   +1 more source

Time‐Variant Seismic Fragility of Reinforced Concrete Bridge Piers Considering Degradation Phenomena

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Aging and environmental exposure progressively deteriorate the physical and mechanical properties of construction materials, thereby affecting the safety and functionality of existing infrastructure. Corrosion of steel rebars in reinforced concrete structures is widely acknowledged as the most common and detrimental degradation phenomenon, as ...
Paolo Andrea Miglietta   +4 more
wiley   +1 more source

Geological characterization of the Dutch Wadden Sea using shallow reflection seismics

open access: yes, 2010
Mapping of the Dutch Wadden Sea is a major challenge as it is an intertidal zone and therefore has limited accessibility by surveying vessels. Hence, the current subsurface model of the Dutch Wadden Sea is based on a sparse density of lithological ...
Dubelaar, C.W.   +2 more
core   +2 more sources

Basic Geophysics - Introduction to Seismic Exploration

open access: yes, 2019
Can we take a look inside the Earth? Difference between seismology and seismics, representation of different active and passive seismic sources, seismic receivers, applications in seismology and ...
Barth, Andreas
core   +1 more source

Influence of the Boundary Conditions on the Seismic Response of Existing Masonry Infills From In‐Plane and Dynamic Out‐of‐Plane Tests

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Despite increasing attention to the seismic performance of masonry infills, their out‐of‐plane dynamic behaviour remains insufficiently explored, particularly under pre‐existing in‐plane damage. This study presents a comprehensive experimental campaign designed to investigate the seismic behaviour of an existing weak masonry infill typology ...
Maithree Kurukulasuriya   +3 more
wiley   +1 more source

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