Results 51 to 60 of about 105,870 (246)

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

Earthquake Mechanism and Displacement Fields Close to Fault Zones [PDF]

, 1974
The Sixth Geodesy/Solid Earth and Ocean Physics (GEOP) Research Conference was held on February 4–5, 1974, at the Institute of Geophysics and Planetary Physics, University of California, San Diego, in La Jolla, California.
Allen, C. R., Berger, Jon, Mueller, Ivan I., Savage, J. C., Weertman, J.   +4 more
core  

Stress analysis of crack characteristic of anthracite under dynamic loading

Deep Underground Science and Engineering, EarlyView.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su   +5 more
wiley   +1 more source

Slit tube responses and rock fracture characteristics in slit charge blasting under high in situ stress

Deep Underground Science and Engineering, EarlyView.
In this article, the finite element method‐smoothed particle hydrodynamics adaptive coupling algorithm is applied to numerically simulate and analyze the dynamic response of the slit tube and the crack propagation under high in situ stress. The dynamic response of the slit tube mainly exhibits radial response in the vertical direction of the slit and ...
Zhe Sui, Liyun Yang, Lijun Wu, Chenxi Ding   +3 more
wiley   +1 more source

Electro-Magnetic Earthquake Bursts and Critical Rupture of Peroxy Bond Networks in Rocks

, 2006
We propose a mechanism for the low frequency electromagnetic emissions and other electromagnetic phenomena which have been associated with earthquakes. The mechanism combines the critical earthquake concept and the concept of crust acting as a charging ...
Allègre, Alperovich, Andersen, Andersen, Anifrani, Ashby, Bak, Bell, Bianchi, Bouchaud, Bowman, Bowman, Bowman, Bowman, Brehm, Brehm, Bufe, Bufe, Chen, Cliverd, Contoyiannis, D. Sornette, Debate on VAN (special issue), Derr, Dey, Dickinson, Dieterich, Edwards, Eftaxias, Eftaxias, Ellsworth, F. Freund, Freund, Freund, Freund, Freund, Freund, Freund, Freund, Freund, Freund, Freund, Freund, Freund, Freund, Frid, Friebele, Frost, Fujinawa, Fujinawa, Garcimartin, Gershenzon, Gokhberg, Hayakawa, Heimpel, Helmstetter, Hickman, Huang, Huang, Ivanov, Jaumé, Johansen, Johansen, Johnston, Jones, Jones, Kagan, Kapiris, Kapiris, Kathrein, Keilis-Borok, Keilis-Borok, Keilis-Borok, King, King, King, Knopoff, Kopytenko, Kossobokov, Lei, Lei, Lei, Levin, Lindh, Liu, Liu, Ma, Main, Martelli, Martens, Martin, Mogi, Molchanov, Molchanov, Molchanov, Mora, Moura, Moura, Moura, Naaman, NASDA-CON-960003, Nechad, Nechad, Nitsan, Ohta, Ondoh, Ouillon, Ouillon, Ouzounov, Park, Place, Pulinets, Pulinets, Pulinets, Qiang, Rabinovitch, Raleigh, Regenauer-Lieb, Ricci, Rossman, Roux, Sahimi, Saleur, Sammis, Sammis, Shamir, Smyth, Sornette, Sornette, Sornette, Sornette, Sornette, Sornette, Sornette, Sornette, Sornette, Sornette, Sorokin, Srivastav, St-Laurent, Stauffer, Sykes, Taylor, Tocher, Trigunait, Tronin, Tronin, Tsukuda, Varotsos, Vere-Jones, Vershinin, Wilson, Yasui, Yen, Yoshida, Yoshino, Yukalov, Zhuang, Zlotnicki   +158 more
core   +1 more source

Experimental and constitutive modeling investigations on marble in Jinping Underground Laboratory

Deep Underground Science and Engineering, EarlyView.
The objective of this study is to reveal the underlying mechanisms behind the brittle‐ductile transition of the marble through a combination of experimental research and constitutive modeling. A series of triaxial compression and triaxial cyclic loading tests are conducted.
Susheng Wang, Qiang Zhang, Hao Luo, Zhinan Lin   +3 more
wiley   +1 more source

A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles

Deep Underground Science and Engineering, EarlyView.
Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong, Ning Yang, Yi Jin, Ying Wu, Dandan Liu, Junling Zheng, Jingyan Zhao   +6 more
wiley   +1 more source

Characterization of the permeability evolution of hard and soft rocks under hydro‐mechanical coupling conditions

Deep Underground Science and Engineering, EarlyView.
The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang, Jian Yu, Yun Wu, Cong Gong, Xiaozhao Li, Kui Zhao, Dickson Moyo   +6 more
wiley   +1 more source

Ionospheric effects during first 2 hours after the Chelyabinsk meteorite impact [PDF]

, 2013
This paper presents the analysis of ionospheric effects in the region close to the Chelyabinsk meteorite explosion at 03:20UT 2013 February 15 from the Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences (ISTP SB RAS)
Berngardt, O. I., Grigorieva, S. A., Kurkin, V. I., Kusonski, O. A., Zherebtsov, G. A.   +4 more
core  

Strain‐based modeling and analysis for rock blasting and geomechanics applications

Deep Underground Science and Engineering, EarlyView.
This paper introduces a novel strain‐based modeling approach for blasting and geomechanical applications, using measurable variables like particle velocity, strain, and displacement. By bypassing complex constitutive relations, strain‐based models capture critical blasting trends and full‐blast design parameters with minimal calibration.
Ruilin Yang
wiley   +1 more source