Results 21 to 30 of about 64,455 (258)

Agency, affect and archaeologist: transforming place with rock art in Auwim, upper Karawari Arafundi Region, East Sepik, Papua New Guinea

, 2021
International audienceContemporary narratives and interpretations surrounding rock art production in present-day settings provide important insights into rock art practices in the past and present.
Taçon, Paul S.C, Ricaut, Francois-Xavier, Brady, Liam M., Brady, Liam M, Tacon, Paul SC, Leavesley, Matthew G, Leavesley, M.G., Tacon, Paul S.C., Tsang, Roxanne, Leavesley, Matthew G., Katuk, Sebastien   +10 more
core   +1 more source

The surrounding rock deformation-time diagram.

, 2022
The surrounding rock deformation-time diagram.
Kexin Bai (11993756), Donggui Mao (11993753), Yuejin Zhou (11037204), Leiming Zhang (564088), Chunlin Zeng (11993750)   +4 more
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Deterioration and Cavity of Surrounding Rocks at the Bottom of Tunnel Under the Combined Action of Heavy-Haul Load and Groundwater: An Experimental Study

Frontiers in Earth Science, 2021
In China, the first tunnel was built in accordance with the 30-ton heavy-haul railway standard. Based on the change in water and soil pressure obtained from long-term on-site monitoring, the cavity mechanism of the surrounding rock at the bottom of a ...
Zheng Li, Zheng Li, Zheng Li, Kunping Chen, Ziqiang Li, Ziqiang Li, Weiwei Huang, Xinsheng Wang   +7 more
doaj   +1 more source

Numerical simulation method for hydraulic fracture pressure of perforated surrounding rock under hydraulic coupling

Yantu gongcheng xuebao, 2022
A numerical simulation method for hydraulic fracture pressure of perforated surrounding rock under hydraulic coupling is proposed using the FVM based on the coupling theory of fluid flow of porous media and stress of surrounding rock.
ZHANG Yu 1, 2, WANG Peng-sheng 1, LI Da-yong 1, ZHANG Yu-kun 2, WEI Kai 3
doaj   +1 more source

Simplified mechanical model of roadway surrounding rock.

, 2022
Simplified mechanical model of roadway surrounding rock.
Kexin Bai (11993756), Donggui Mao (11993753), Yuejin Zhou (11037204), Leiming Zhang (564088), Chunlin Zeng (11993750)   +4 more
core   +1 more source

Constant-Resistance, Rigid, and Flexible Coupling Support Technology for Soft Rock Entrances in Deep Coal Mines:A Case Study in China

Advances in Materials Science and Engineering, 2020
The stability control of a soft rock roadway is a crucial problem for sustainable utilization of limited coal resources in deep mining practices. To solve it, the soft rock types and failure mechanism of −890 entrance surrounding rock have been analyzed,
Yong Zhang, Chengwei Zhao, Ming Jiang, Jiaxuan Zhang, Chen Chen, Xiaoyu Zheng, Xiaoming Sun, Huichen Xu   +7 more
doaj   +1 more source

Analysis on Spatial Disturbance Influence of Surrounding Rock Stress in the Staggered Roadways and Its Control Countermeasures

Shock and Vibration, 2022
Combined with specific engineering examples, the spatial disturbance influence characteristics and laws of the surrounding rock stress in the staggered roadways are analyzed by numerical simulation.
Qingwei Bu, Benqing Yuan, Meng Ye, Nuo Xu   +3 more
doaj   +1 more source

Pressure of surrounding rock of deep-buried loess shield tunnel

Yantu gongcheng xuebao, 2021
With the development of shield tunnel engineering, more and more deep-buried loess shield projects have gradually appeared. The calculation of pressure of the surrounding rock is of great significance to the design of linings and safety evaluation during
HAN Xing-bo 1, 2, YE Fei 1, 2, FENG Hao-lan 1, HAN Xin 1, TIAN Chong-ming 1, LEI Ping 1
doaj   +1 more source

Energy Evolution Law during Failure Process of Coal–Rock Combination and Roadway Surrounding Rock

, 2022
The deformation and failure of a coal–rock system in a deep environment is affected by its own mechanical properties, natural endowments, and geological structures; it is very important to study the energy evolution law of coal–rock systems ...
Tongbin Zhao, Dongxiao Zhang, Weiyao Guo, Yongqiang Zhao, Xiufeng Zhang, Yang Chen   +5 more
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Buckling failure of highly-stressed hard rocks surrounding deep underground openings and confining effects of backfilling material

, 2012
The buckling failure of highly-stressed hard rocks surrounding deep underground openings is analyzed in this paper. The effects of the eccentricity of maximum tangential stress and the radial stress gradient are considered in the analysis.
Li, X. B., Wong, Louis Ngai Yuen, Li, D. Y., Liu, Z. X., Ma, C. D., Wong, L. N Y   +5 more
core   +1 more source