Results 81 to 90 of about 820,309 (388)

Study on Combined Energy Absorption Support for Rockburst Disaster Control in Tunnelling

Shock and Vibration, 2021
In order to better realize the rockburst disaster control mechanism and approach, the rockburst response of concrete blocks with different energy absorption levels under different energy storage conditions was observed and analyzed by loading tests.
Liang Kuang, Gang Wang, Wenge Qiu, Lun Gong, Zhiqiang Feng, Tianhui Ma   +5 more
doaj   +1 more source

Sub-critical and Super-critical Regimes in Epidemic Models of Earthquake Aftershocks [PDF]

, 2002
We present an analytical solution and numerical tests of the epidemic-type aftershock (ETAS) model for aftershocks, which describes foreshocks, aftershocks and mainshocks on the same footing.
Abercrombie, Abramowitz, Agnès Helmstetter, Bender, Blanter, Bowman, Bowman, Console, Correig, Daley, Davis, Didier Sornette, Drakatos, Dreger, Evison, Evison, Feller, Felzer, Gardner, Glöckle, Gross, Guo, Guo, Harris, Harris, Hawkes, Hawkes, Hawkes, Hawkes, Helmstetter, Hough, Huang, Johansen, Jones, Kagan, Kagan, Kagan, Kagan, Kagan, Keilis-Borok, Keilis-Borok, Kisslinger, Kisslinger, Knopoff, Laherrère, Lee, Liu, Main, Matsu'ura, Meltzner, Meredith, Molchan, Molchan, Morse, Moyal, Ogata, Ogata, Ogata, Ogata, Ogata, Ogata, Olver, Pujol, Ranalli, Reasenberg, Reasenberg, Reasenberg, Sammis, Scholz, Simeonova, Smith, Sornette, Sornette, Sornette, Steeples, Sykes, Tajima, Utsu, Vere-Jones, Vere-Jones, Viljoen, Wiemer, Wyss, Yamashita, Zhang   +84 more
core   +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

Conditional Random Field Approach Combining FFT Filtering and Co-Kriging for Reliability Assessment of Slopes

Applied Sciences
Conventional unconditional random field (URF) models were shown to neglect in-situ monitoring data and thus misrepresent real slope stability. To address this, a conditional random field (CRF) generator was proposed, in which Fast Fourier Transform (FFT)
Xin Dong, Tianhong Yang, Yuan Gao, Wenxue Deng, Yang Liu, Peng Niu, Shihui Jiao, Yong Zhao   +7 more
doaj   +1 more source

Mainshocks are aftershocks of conditional foreshocks: How do foreshock statistical properties emerge from aftershock laws [PDF]

, 2003
The inverse Omori law for foreshocks discovered in the 1970s states that the rate of earthquakes prior to a mainshock increases on average as a power law ~ 1/(t_c-t)^p' of the time to the mainshock occurring at t_c.
Abercrombie, Agnew, Agnès Helmstetter, Aki, Berg, Bowman, Bufe, Cagnetti, Console, Davis, Didier Sornette, Dodge, Enescu, Felzer, Gabrielov, Gabrielov, Gross, Guo, Hainzl, Helmstetter, Helmstetter, Huang, Ikegami, Imoto, Jaumé, Jean-Robert Grasso, Jones, Jones, Kagan, Kagan, Kagan, Kagan, Kagan, Keilis-Borok, Keilis-Borok, Keilis-Borok, Kisslinger, Kisslinger, Knopoff, Li, Lindh, Ma, Maeda, Michael, Mogi, Mogi, Molchan, Molchan, Molchan, Molchan, Narteau, Ogata, Ogata, Ogata, Omori, Omori, Page, Papazachos, Papazachos, Papazachos, Papazachos, Pelletier, Reasenberg, Reasenberg, Reasenberg, Rotwain, Sammis, Scholz, Shaw, Smith, Smith, Sornette, Sornette, Sornette, Sornette, Stephens, Suyehiro, Tajima, Utsu, von Seggern, Wu, Wyss, Yamanaka, Yamashina, Yamashita, Yamashita, Yamashita, Zhang, Zöller   +88 more
core   +5 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

Seismic-V

, 2013
For a long time, reactive seismic retrofitting was focused on monumental heritage and very little on vernacular architecture. In the last years, there has been a growing interest on seismic resistant design and solutions and several research units emerged to produce important research in the scientific field. However, for some time, international focus
Correia, M., Carlos, G., Rocha, S., Lourenço, Paulo B., Vasconcelos, Graça, Varum, Humberto   +5 more
openaire   +3 more sources

Statistical analysis of daily seismic event rate as a precursor to volcanic eruptions [PDF]

, 2003
We analyse time series of daily seismic event rate for the Kilauea, Hawaii, volcano between 1959 and 2000. Individual eruptions are not always preceded by an increase in event rate, and many increases in event rate do not lead to eruption.
Chastin, Sebastien F. M., Main, Ian G.
core   +2 more sources

Effects of joint geometric configurations on cyclic shear behavior of intermittent joints under constant normal stiffness conditions

Deep Underground Science and Engineering, EarlyView.
The present manuscript explored the effects of joint configurations on the cyclic shear behavior of intermittent joints for the first time. The cyclic shear response, shear strength degradation, dilation characteristics evolution, frictional property, fractal dimension, and dissipative energy were further analyzed during shear cycles, which is crucial ...
Bin Wang, Yujing Jiang, Qiangyong Zhang, Hongbin Chen   +3 more
wiley   +1 more source

Permeability characteristics of fractured rock mass: a case study of the Dongjiahe coal mine

Geomatics, Natural Hazards & Risk, 2020
The intricate distribution of fractures in rock mass leads to the anisotropy of permeability characteristics of the rock mass, which affects the overall stability of rock mass.
Ke Ma, Longjiang Wang, Yilin Peng, Liji Long, Sujian Wang, Tong Chen   +5 more
doaj   +1 more source