Results 81 to 90 of about 9,940 (287)

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

Deep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source

Intensity Prediction Equations Based on the Environmental Seismic Intensity (ESI-07) Scale: Application to Normal Fault Earthquakes

Applied Sciences
Earthquake environmental effects may significantly contribute to the damage caused by seismic events; similar to ground motion, the environmental effects are globally stronger in the vicinity and decrease moving away from the epicenter or seismogenic ...
Marco Pizza, Francesca Ferrario, Alessandro M. Michetti, M. Magdalena Velázquez-Bucio, Pierre Lacan, Sabina Porfido   +5 more
doaj   +1 more source

Cataloguing earthquake environmental effects in Italy : Analyses of some strong earthquakes [PDF]

, 2009
Cataloguing earthquake environmental effects in Italy : Analyses of some strong ...
Michetti, A.M., Porfido, S., Guerrieri, L., Vittori, E., Blumetti, A.M., Esposito, E.   +5 more
core  

Optimization of cut‐hole layout under high in situ stress based on numerical simulation and field tests

Deep Underground Science and Engineering, EarlyView.
This study investigates the blast‐induced rock damage patterns under different cut‐hole layouts and ground stress conditions through numerical simulations and field tests. The findings in this study provide valuable insights for similar underground engineering applications.
Junjie Zhao, Diyuan Li, P. G. Ranjith, Xinxin Lü, Yanliang Li, Xiaoli Su   +5 more
wiley   +1 more source

Resonance‐induced restoration of rock permeability degraded by heavy components of crude oil

Deep Underground Science and Engineering, EarlyView.
Resonance‐induced changes occur in filtration properties of sedimentary rocks in crude paraffin oil flow under acoustic vibrations. Experimental data on (a) pressure drop; (b) permeability; (c) pressure at the rock inlet; and (d) pressure at the rock outlet are presented.
Evgenii Riabokon, Qian Yin, Mikhail Guzev, Mikhail Turbakov, Evgenii Kozhevnikov, Nadezhda Riabokon, Ivan Panteleev   +6 more
wiley   +1 more source

Rockburst prediction based on data preprocessing and hyperband‐RNN‐DNN

Deep Underground Science and Engineering, EarlyView.
A data preprocessing workflow is proposed to address challenges in rockburst data analysis. Coupled algorithms preprocess the data set, and hyperband optimization is used to enhance RNN performance. Results show that preprocessing improves accuracy, while dense layers enhance model stability and prediction performance.
Yong Fan, Chenxi Yin, Guangdong Yang, Shengyong Ding, Bin Tian   +4 more
wiley   +1 more source

Earthquakes – history review, environmental and health effects and health care measures

Arhiv za higijenu rada i toksikologiju, 2013
Potresi su prirodne katastrofe a možemo ih očekivati na bilo kojem dijelu Zemlje u bilo kojem trenutku. Učestalost im je veća u cirkumpacifičkom i mediteransko-transazijskom seizmičkom pojasu. Prate se nizom sofisticiranih metoda, određuje im se magnituda Richterovom ljestvicom te intenzitet Mercani-Cancani-Sibergovom ljestvicom.
Žuškin, Eugenija, Doko-Jelinić, Jagoda, Nola, Iskra Alexandra   +2 more
openaire  

EARTHQUAKE ENVIRONMENTAL EFFECTS, INTENSITY AND SEISMIC HAZARD ASSESSMENT: THE EEE CATALOGUE (INQUA PROJECT #0418) [PDF]

, 2011
Earthquake Environmental Effects (EEE) are the effects produced by an earthquake on the natural environment, either directly linked to the earthquake source or triggered by the ground shaking.
Esposito, Eliana, Porfido , Sabina, Vittori , Eutizio, Lucarini , Mauro, Serva , Leonello, Guerrieri, Luca, Inqua Terpro, group, Michetti, Alessandro M., Brustia , Elisa, Blumetti, Anna Maria   +9 more
core  

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

Deep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

Long-run consequences of natural disasters: Evidence from Tangshan [PDF]

Exploiting Tangshan 1976 - the deadliest earthquake in the 20th century - as a source of exogenous variation, we estimate the cohort-specific effects of a historical shock on contemporary socio-economic outcomes.
Xu, Guo
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