Results 51 to 60 of about 12,746 (295)

Blasting effects of cross‐fault deep‐buried excavation on adjacent existing tunnel stability

Deep Underground Science and Engineering, EarlyView.
Based on the theoretical analysis of cylindrical wave propagation in a deep rock mass in the fault with a filling layer, the calculation method of peak particle velocity caused by wave propagation in the existing tunnel is established. The viscoelastic characteristics of a rock mass are examined in the analysis.
Shaobo Chai, Lianzeng Chai, Chao Meng, Kai Liu, Lang Song, Shaojie Zheng   +5 more
wiley   +1 more source

Correction to: Cyclic soft stimulation (CSS): a new fluid injection protocol and traffic light system to mitigate seismic risks of hydraulic stimulation treatments

Geothermal Energy, 2019
After publication of the article [1], it has been brought to our attention that there is an error in Figure 7. Instead of the “2” in the first row of the green and yellow stages of the traffic light system it should be a “3”.
Hannes Hofmann, Günter Zimmermann, Arno Zang, Ki‑Bok Min   +3 more
doaj   +1 more source

Hotspots, trends, and regional focus on oil or gas exploration: A bibliometric comparative study

Deep Underground Science and Engineering, EarlyView.
This paper explores the research trends in global oil and gas exploration through the bibliometric analysis of 3460 articles collected from the Web of Science database on oil and gas exploration published from 2013 to 2023. The research hotspots, objects, regional distribution, methods, and evaluation methods of oil and gas exploration are analyzed and
Jihong Wang, Zhongkai Li, Jianguo Wang, Zhiqiang Li   +3 more
wiley   +1 more source

Risk-informed representative earthquake scenarios for Valparaíso and Viña del Mar, Chile [PDF]

Natural Hazards and Earth System Sciences
Different risk management activities, such as land-use planning, preparedness, and emergency response, utilize scenarios of earthquake events. A systematic selection of such scenarios should aim at finding those that are representative of a certain ...
H. Rosero-Velásquez, M. Monsalve, M. Monsalve, J. C. Gómez Zapata, E. Ferrario, E. Ferrario, E. Ferrario, A. Poulos, J. C. de la Llera, J. C. de la Llera, D. Straub   +10 more
doaj   +1 more source

Seismic Design Forces and Risks [PDF]

, 2012
In recent years, seismic damages caused by giant earthquakes have occurred in many countries. For example, over 250,000 people were killed by the Haiti Earthquake in January 2010. In addition, over 15,000 people were killed by the Tohoku Japan Earthquake and the coasts of Tohoku Japan were devastated by the massive tidal wave in March 2011.
Hiroyuki Sugimoto, Junichi Abe, Tadatomo Watanabe   +2 more
openaire   +3 more sources

Experimental study on dynamic behavior analysis of coal and its acoustic emission response characteristics under impact failure

Deep Underground Science and Engineering, EarlyView.
Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang, Huijian Fu, Yingke Liu, Zhaoxi Long, Yang Liu, Tengrui Yang, Yanbo Sun, Mingjun Jiang, Xiaojiang Wen, Yue Niu, Ruixi Cheng   +10 more
wiley   +1 more source

METHODOLOGY OF SYSTEM APPROACHE TO SEISMIC RISK ASSESSMENT AND REDUCTION

Вестник Дагестанского государственного технического университета: Технические науки, 2016
. Ensuring of urban areas seismic safety is a task which do not require delay. But it cannot be solved by separate parts. It is essential that all components of the seismic hazard must be grouped together in one problem based on the system approach.
A. D. Abakarov, I. B. Kurbanov
doaj   +1 more source

Influence of thick soft superficial layers of seabed on ground motion and its treatment suggestions for site response analysis

Open Geosciences, 2021
The thick soft superficial layers of the seabed greatly influence ground motion generally. It is worth studying how to find out the influence of these soft layers on ground motion parameters and determine reasonable seismic fortification parameters for ...
Jiang Qifeng, Rong Mianshui, Wei Wei, Zhang Bin, Wang Jixin   +4 more
doaj   +1 more source

Soft Barriers for the Mitigation of Seismic Risk

Procedia Engineering, 2016
AbstractThis paper gives an insight on the static and dynamic performance of soft buried barriers made of a mixture of soil and a Super Absorbing Polymer (SAP) to be used for the mitigation of seismic risk. Laboratory tests were carried out on sand-SAP mixtures at different relative percentages.
NAPPA, VALERIA, BILOTTA, EMILIO, FLORA, ALESSANDRO   +2 more
openaire   +3 more sources

Form and load transfer aspects of foundation systems: Case‐based implementation and adaptation for buildings

Deep Underground Science and Engineering, EarlyView.
Upon conceptualization of structural behavior, foundations in terms of their form are divided into linear (1D), planar (2D), and volumetric (3D). Regarding the load transfer mechanisms, linear foundation systems are considered vector‐acting, planar foundations are divided into section and surface‐acting, and volumetric ones are recognized as block ...
Abolfazl Eslami, Amirhossein Ebrahimipour, Meysam Imani, Reza Imam, Pinqiang Mo   +4 more
wiley   +1 more source