Results 121 to 130 of about 180,090 (302)

Performance-based assessment of onshore structures due to initial tsunami impact : a preliminary investigation [PDF]

open access: yes, 2012
The Tohuku earthquake and tsunami of March 2011 illustrated a greater vulnerability of onshore structures to tsunami loads than to those experienced during the earthquake.
Bloodworth, Alan G.   +2 more
core  

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

open access: yesDeep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang   +4 more
wiley   +1 more source

Report on The Great Alaska Earthquake of 1964: Engineering [PDF]

open access: yes, 1974
In the last issue of BSSA, there appeared a book review of the report: The Great Alaska Earthquake of 1964: Engineering, published by the National Academy of Sciences.
Housner, George W.
core  

Failure characteristics analysis of the inclined interlayer during water‐soluble cavity construction of underground salt caverns for large‐scale energy storage

open access: yesDeep Underground Science and Engineering, EarlyView.
In the process of water‐soluble cavern construction of salt cavern energy storage, since the interlayer does not dissolve in water easily, sudden collapse will cause engineering accidents such as bending and damage of the inner tube of the cavern.
Zenghui Zhao   +5 more
wiley   +1 more source

EU-NICE, Eurasian University Network for International Cooperation in Earthquakes [PDF]

open access: yes, 2012
Despite the remarkable scientific advancements of earthquake engineering and seismology in many countries, seismic risk is still growing at a high rate in the world’s most vulnerable communities.
Braga, F.   +20 more
core   +1 more source

An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system

open access: yesDeep Underground Science and Engineering, EarlyView.
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand   +5 more
wiley   +1 more source

CEEMDAN-LSTM framework for distinguishing natural and mining-induced seismicity

open access: yesMeitan xuebao
Accurate identification of mine-induced seismic events and natural earthquakes is of significant importance. Using a purely natural earthquake catalog for advanced seismological studies such as active fault delineation, strong earthquake prediction, and ...
Zhaoyang YAN   +4 more
doaj   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

open access: yesDeep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li   +7 more
wiley   +1 more source

Regional mapping of sediment thickness using microtremor HVSR spatial variability

open access: yesDiscover Geoscience
The microtremor Horizontal-to-Vertical Spectral Ratio (HVSR) method is widely adopted for estimating site fundamental frequency ( $$\:{f}_{0}$$ ) and sediment thickness due to its simplicity and cost-effectiveness. However, current applications typically
YiFan Yang, LiJing Shi, Junjie Huang
doaj   +1 more source

An earthquake response spectrum method for linear light secondary substructures [PDF]

open access: yes, 2007
YesEarthquake response spectrum is the most popular tool in the seismic analysis and design of structures. In the case of combined primary-secondary (P-S) systems, the response of the supporting P substructure is generally evaluated without considering
Muscolino, G., Palmeri, Alessandro
core  

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