Results 81 to 90 of about 180,931 (300)

Earthquake statistics and fractal faults

, 1996
We introduce a Self-affine Asperity Model (SAM) for the seismicity that mimics the fault friction by means of two fractional Brownian profiles (fBm) that slide one over the other.
A. Crisanti, B. B. Mandelbrot, B. Gutenberg, B. Mandelbrot, C. A. Aviles, D. L. Turcotte, F. Omori, G. Paladin, G. R. Grimmett, H. J. Herrmann, J. Huang, J. M. Carlson, K. Christensen, K. Ito, L. Pietronero, O. Mazzella, P. Bak, P. Bak, P. G. Okubo, R. Burridge, R. F. Smalley, Jr., R. F. Voss, R. Hallgass, R. S. Wu, S. R. Brown, T. Hirata, T. Ouchi, V. De Rubeis, V. De Rubeis, V. De Rubeis, V. Loreto, W. Power, Y. P. Kagan, Y. Y. Kagan, Z. Olami   +34 more
core   +1 more source

A multiphase seismic investigation of the shallow subduction zone, southern North Island, New Zealand [PDF]

, 2001
The shallow structure of the Hikurangi margin, in particular the interface between the Australian Plate and the subducting Pacific Plate, is investigated using the traveltimes of direct and converted seismic phases from local earthquakes.
Aki, Ansell, Ansell, Anya M. Reading, Bannister, Barnes, Barnes, Bradshaw, Brisbourne, Chanier, David Gubbins, Davy, de Boor, Eberhart-Phillips, Eberhart-Phillips, Franklin, Gledhill, Gubbins, Helffrich, Helffrich, Iidaka, Lancaster, Lodge, Luyendyk, Mao, Marson-Pidgeon, Powell, Reading, Robinson, Samson, Smith, Smith, Smith, Spencer, Stuart, Walcott, Weijian Mao, Wessel, Wood   +38 more
core   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source

Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst

Energy Science & Engineering
The mechanism of rock burst induced by the superposition of dynamic and static loads in multicoal seam mining is unique. To investigate the propagation attenuation law of large‐energy microseismic events and the induced mechanism of rock burst under this
Hongwei Mu, Yongliang Zhang, Mingzhong Gao, Quanlin Zhu, Jingbo Li, Jinfeng Cao, Wentao Fan   +6 more
doaj   +1 more source

A Review of Friction Dissipative Beam-to-Column Connections for the Seismic Design of MRFs

Applied Sciences
The use of friction-based beam-to-column connections (BCCs) for earthquake-resistant moment-resistant frames (MRFs), aimed at eliminating damage to beam end sections due to the development of plastic hinges, has been prevalent since the early 1980s ...
Piero Colajanni, Muhammad Ahmed, Salvatore Pagnotta, Pietro Orlando   +3 more
doaj   +1 more source

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

Geothermal Energy, 2018
Hydraulic stimulation treatments are standard techniques to access geologic resources which cannot economically be exploited with conventional methods. Fluid injection into unproductive formations may increase their permeability by forming new fractures ...
Hannes Hofmann, Günter Zimmermann, Arno Zang, Ki-Bok Min   +3 more
doaj   +1 more source

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

Method to improve seismic performance: Selection of key components and multi-objective optimization of risk and cost

Nuclear Engineering and Technology
Considering the increasing frequency of large-scale earthquakes worldwide, ensuring the seismic safety of nuclear power plants against earthquakes exceeding the design conditions is essential. Therefore, this study proposed a method for enhancing seismic
Hyun Su Moon, Seunghyun Jang, Shinyoung Kwag, Min Kyu Kim   +3 more
doaj   +1 more source

Regional analysis of earthquake occurrence and seismic energy release [PDF]

The historic temporal variation in earthquake occurrence and seismic energy release on a regional basis throughtout the world were studied. The regionalization scheme employed divided the world into large areas based either on seismic and tectonic ...
Cohen, S. C.
core   +1 more source

Derivation of Eurocode 8 spectrum-compatible time-histories from recorded seismic accelerograms via harmonic wavelets [PDF]

, 2010
A computationally efficient harmonic wavelet-based iterative procedure is proposed to modify suites of recorded accelerograms to be used in the aseismic design of critical structures regulated by the European code provisions (EC8).
Giaralis, A., Spanos, P. D.
core   +1 more source