Results 81 to 90 of about 2,883,596 (290)

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

Deep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng, Shijie Li, Xiaozhao Li, Zhen Huang, Shangtong Yang, Wentao Xu, Biao Wang, Yun Wu   +7 more
wiley   +1 more source

Effect of bi-directional ground motions on the seismic pounding of adjacent NPP structures

Nuclear Engineering and Technology
This study aims to investigate the structural pounding of two adjacent RCB and AB under bi-directional ground motions. Furthermore, this study also investigates the influence of strong bi-directional ground motions on the seismic response interaction of ...
Bidhek Thusa, Duy-Duan Nguyen, Md Samdani Azad, Tae-Hyung Lee   +3 more
doaj   +1 more source

Seismic Performance and Configuration Assessment of Deficient Steel Frames Equipped with Buckling Restrained Braces [PDF]

Journal of Rehabilitation in Civil Engineering
Integrating Buckling Restrained Braces (BRBs) into seismic-resistant structural frameworks presents a sophisticated approach to improving seismic performance.
Mazen Shrif, Zaid Al-Sadoon, Ahed Habib
doaj   +1 more source

Fluid‐induced slip on a rate‐and‐state fault during co‐ and post‐injection: The interplay of fluid pressure diffusion and poroelastic stress

Deep Underground Science and Engineering, EarlyView.
Fault slip can occur ahead of the injection pressure front due to poroelastic stress. Our model captures the interaction of pressure, stress, and friction, providing new insights into injection‐induced seismicity and post‐injection fault slip. Shut‐in operations can either mitigate or accelerate seismic events depending on fault conditions and ...
Qifeng Xie, Lei Wang, Qi Li
wiley   +1 more source

Optimizing Seismic Resilience in High‐Rise Structures Through Comprehensive Evaluation and Enhancement of Outrigger Systems: A Comparative and Multifaceted Study

Engineering Reports
The increased number of towering structures in cities across the globe cannot be overemphasized; the need to pay close attention to the seismic design for life safety of occupants is paramount.
Aqdas Shehzad, Wang Xiu‐Xin, Muhammad Baqi Billah, Muhammad Sajawal, Ambe Harrison, Pradeep Jangir, Wulfran Fendzi Mbasso, Mohammad Khishe   +7 more
doaj   +1 more source

Probabilistic prediction of rate‐dependent rock strength using natural gradient boosting and Gaussian process regression

Deep Underground Science and Engineering, EarlyView.
Probabilistic natural gradient boosting and Gaussian process regression models accurately predict rate‐dependent rock strength across lithologies. Static strength and strain rate dominate, while geometric factors have minimal influence, enabling interpretable and uncertainty‐aware predictions for dynamic geomechanical applications. Abstract The dynamic
Hadi Fathipour‐Azar
wiley   +1 more source

Aseismic transient during the 2010–2014 seismic swarm: evidence for longer recurrence of M ≥ 6.5 earthquakes in the Pollino gap (Southern Italy)?

Scientific Reports, 2017
In actively deforming regions, crustal deformation is accommodated by earthquakes and through a variety of transient aseismic phenomena. Here, we study the 2010–2014 Pollino (Southern Italy) swarm sequence (main shock M W 5.1) located within the Pollino ...
Daniele Cheloni, Nicola D’Agostino, Giulio Selvaggi, Antonio Avallone, Gianfranco Fornaro, Roberta Giuliani, Diego Reale, Eugenio Sansosti, Pietro Tizzani   +8 more
doaj   +1 more source

Investigation on the failure evolution characteristics of surrounding rock in deep cross‐fault roadway: Based on physical model test and numerical simulation

Deep Underground Science and Engineering, EarlyView.
This study reveals the failure evolution characteristics of deep cross‐fault roadway surrounding rock under excavation support and periodic weighting. Periodic weighting readily induces fault activation, with the spatial distribution of failed rock masses being controlled by the fault strike and dip.
Tiezhu Li, Suping Peng, Jing Zheng, Zhanhua Yang, Qijun Tian   +4 more
wiley   +1 more source

Seismicity and seismic gap in the Lesser Antilles arc and earthquake hazard in Guadeloupe [PDF]

Geophysical Journal International, 1981
Summary. A seismic study of the Lesser Antilles arc has been carried out, first for the period 1950–1978, for which we can use local seismic networks to draw maps of instrumental seismicity, then for the period 1530–1950, for which we have catalogues of felt earthquakes.
openaire   +1 more source

Combination of CO 2 ${\text{CO}}_{2}$ storage and geothermal energy production in porous and fractured superhot geothermal systems

Deep Underground Science and Engineering, EarlyView.
The graphical abstract depicts the workflow for porous‐ and fractured‐media simulations, where stochastically generated discrete natural fractures are required for the fracture‐media simulation. Abstract CO 2 ${\text{CO}}_{2}$ leakage is one of the main risks and barriers to geologic carbon storage. However, under the high‐temperature and high‐pressure
Christoph Scherounigg, Rotman Criollo, Victor Vilarrasa, Keita Yoshioka   +3 more
wiley   +1 more source