Results 121 to 130 of about 1,753,793 (305)

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

The role of gas emissions (He, Rn, and CO2) from fault zones in understanding fault and seismic activity

open access: yesFrontiers in Earth Science
Active fault zones are critical pathways for the migration of deep fluids to the Earth’s surface, carrying gases such as He, Rn, and CO2 that provide evidence for the physical and chemical dynamics of the Earth’s interior.
Jiye Li   +5 more
doaj   +1 more source

Dynamic cracking properties and generating conditions of coal under rapid gas release

open access: yesDeep Underground Science and Engineering, EarlyView.
Gas release tests revealed that crack initiation and propagation are jointly controlled by initial crack length, residual strength, and gas release velocity. A new outburst risk coefficient was thus developed from a fracture mechanics perspective, offering a novel predictive approach.
Bing Zhang   +6 more
wiley   +1 more source

On dynamics of seismicity simulated by the models of blocks-and-faults systems

open access: yes, 1997
The major results obtained by numerical simulation of block structure dynamics are juxtaposed and analysed: the possibilities to reconstruct tectonic driving forces from territorial distribution of seismicity, clustering of earthquakes in the model, and ...
Gorshkov, A. I.   +4 more
core   +1 more source

Built-Up Strain and the Predictability of the July 29(30), 2025 Kamchatka Earthquake

open access: yesRussian Journal of Earth Sciences
The July 29(30), 2025 Kamchatka earthquake occurred only 73 years after the major November 4, 1952 event in the same subduction zone, highlighting the relatively short interval between two large ruptures in this segment.
Vladimirova Irina   +4 more
doaj   +1 more source

Earthquake Architecture Explorations [PDF]

open access: yes, 2004
This paper describes and reviews a design studio undertaken by senior undergraduate architectural students to explore issues of earthquake architecture.
Taylor, Mark, Charleson, Andrew
core  

Dynamic response at the terminus of oblique intersecting joints subjected to stress waves

open access: yesDeep Underground Science and Engineering, EarlyView.
This study derives the propagation equation for stress waves impinging upon nonlinear oblique intersecting joints. It analyzes the dynamic response at the terminus of nonlinear oblique intersecting joints subjected to stress waves. Abstract To investigate the dynamic response at the terminus of oblique intersecting joints subjected to stress waves, a ...
Gang Hu   +4 more
wiley   +1 more source

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

open access: yesDeep 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   +7 more
wiley   +1 more source

Parkfield: Earthquake Prediction: A Brief History

open access: yes
This report describes recent efforts at earthquake prediction, focusing on the modern era beginning in the mid- to late 1970's. Topics include a history of prediction efforts, the measurement of physical parameters in areas where earthquakes occur, and ...

core  

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

open access: yesDeep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu   +4 more
wiley   +1 more source

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