Results 71 to 80 of about 163,434 (247)

Surrounding rock deformation control of asymmetrical roadway in deep three-soft coal seam: a case study

Journal of Geophysics and Engineering, 2018
Surrounding rock deformation control (SRDC) of roadways in deep three-soft coal seams (TCSs) is a significant technological difficulty that hinders the safety and high-efficiency mining of coal mines.
Wei Zhang, Z. He, Dongsheng Zhang, Dahong Qi, Weisheng Zhang   +4 more
semanticscholar   +1 more source

Investigation of Deep Shaft-Surrounding Rock Support Technology Based on a Post-Peak Strain-Softening Model of Rock Mass

Applied Sciences, 2021
To control the large deformation that occurs in deep shaft-surrounding rock, the post-peak strain-softening characteristics of deep jointed rock mass are discussed in detail.
Jianjun Zhang, Yang Wang, Baicong Yao, Dongxu Chen, Chuang Sun, Baoxin Jia   +5 more
doaj   +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

Debonding along the fixed anchor length of a ground anchorage [PDF]

, 2014
Peer ...
Akisanya, A. R., Ivanovic, A.
core   +1 more source

Application of Distributed Optical Fiber Sensing Technology in Surrounding Rock Deformation Control of TBM-Excavated Coal Mine Roadway

J. Sensors, 2018
After roadway excavation, the deformation and failure of roadway surrounding rocks typically results in roadway damage or collapse. Conventional monitoring techniques, such as extensometers, stress meters, and convergence stations, are only capable to ...
Bin Tang, H. Cheng
semanticscholar   +1 more source

Subparallel thrust and normal faulting in Albania and the roles of gravitational potential energy and rheology contrasts in mountain belts [PDF]

, 2009
The active tectonics of Albania and surrounding regions, on the eastern margin of the Adriatic Sea, is characterized by subparallel thrust and normal faulting which, we suggest, is likely to be related to gravitational potential energy contrasts between ...
Boait, Fran, Copley, Alex, Hollingsworth, James, Jackson, James, McKenzie, Dan   +4 more
core   +1 more source

The imprint of thermally induced devolatilization phenomena on radon signal. Implications for the geochemical survey in volcanic areas [PDF]

, 2017
Thermal gradients due to magma dynamics in active volcanic areas may affect the emanating power of the substrate and the background level of radon signal.
Galli, Gianfranco, Iezzi, Gianluca, Mollo, Silvio, Scarlato, Piergiorgio, Tuccimei, Paola   +4 more
core   +1 more source

Enhancing mechanical characteristics of soft rock tunnel surrounding rock through radial yield pressure system

Shuiwen dizhi gongcheng dizhi
This study investigated the efficacy of radial yield support as an active measure to mitigate stress and deformation in deep soft rock tunnels experiencing large deformation.
Qiuyu CHEN, Lu HUANG, Hu PAN, Jie CHEN, Qiang XIE, Qiuling LI, Zichen SHU, Xuhao ZHANG   +7 more
doaj   +1 more source

Deformation Prediction of Tunnel-Surrounding Rock Considering the Time Effect of the Viscosity Coefficient: A Case of an NATM-Excavated Tunnel

Frontiers in Earth Science, 2022
Considering engineering problems such as complicated stress and the difficulty in controlling large deformation while a tunnel passes through a soft rock stratum, a theoretical prediction model of convergence deformation of tunnel-surrounding rock is ...
Da Hu, Xiaoqiang Liang, Yong-suo Li, Youping Wu, Lei Jiang   +4 more
semanticscholar   +1 more source

Stability Analysis of Surrounding Rock During Construction of Mountain Integrated Pipe Gallery

Taiyuan Ligong Daxue xuebao, 2022
The stability of surrounding rock is an important concern in the investigation, design, and construction of mountain integrated pipe gallery. On the basis of the DK6+180 section of the Winter Olympics Integrated Pipe Gallery, the stability of surrounding
Honghu YUAN, Wenjie XIE, Hongen LI
doaj   +1 more source