Results 1 to 10 of about 77,777 (186)

Estimates of vertical tectonic stress in the northwest Ethiopian plateau using topography and gravity data [PDF]

Heliyon
The northwest Ethiopian plateau is one of the globe's most complex tectonic zones. Within the area, the previous geological and geophysical investigations revealed volcanism and deformation effects but did not thoroughly examine crust movement, isostatic
Muluken Kassa
doaj   +2 more sources

The Effect of a Tectonic Stress Field on Coal and Gas Outbursts [PDF]

The Scientific World Journal, 2014
Coal and gas outbursts have always been a serious threat to the safe and efficient mining of coal resources. Ground stress (especially the tectonic stress) has a notable effect on the occurrence and distribution of outbursts in the field practice.
Fenghua An, Yuanping Cheng
doaj   +2 more sources

Research on quantitative prediction method of structural fractures in metamorphic rock reservoirs [PDF]

Scientific Reports
Deeply buried hill reservoirs have experienced tectonic movement during different periods, and tectonic fractures are well developed in metamorphic reservoirs, making quantitative characterization and spatial distribution prediction of fractures more ...
Qinghong Yang, Qi Cheng, Guanjie Zhang, Xinwu Liao, Ning Shi, Lei Zhang, Xiang Wang, Wenchao Liu, Jingshou Liu   +8 more
doaj   +2 more sources

Study of in situ stress inversion of deeply incised valleys considering the river evolution process [PDF]

Scientific Reports
The study of the in situ stress field is significant for the stability of large underground caverns near deep V-shaped valleys. Tectonic movements, gravity and river erosion have a great influence on the formation of the modern stress field.
Xianliang Wang, Changgui Zhao, Fenyuan Cheng, Zhiwei Ma, Wei Qi, Yinling Dou, Hao Lan, Jianhai Zhang, Benguo He, Lingying Peng, Wei Du   +10 more
doaj   +2 more sources

Controlling effect of tectonic stress field on coal and gas outburst

Meitan xuebao, 2023
To investigate the controlling effect of tectonic stress field on coal and gas outburst, the gas geology, tectonophysics and rock mechanics methods were applied to analyze the influences of tectonic stress field on tectonic coal, in-situ stress and coal ...
Deyong GUO, Xiaosheng CHUAI, Jianguo ZHANG, Guochuan ZHANG   +3 more
doaj   +1 more source

Current Tectonic Stress State in an Iron Mine District, North China, Based on Overcoring, Hydraulic Fracturing, and Acoustic Emission Stress Measurements

Lithosphere, 2022
Full knowledge of the current tectonic stress state is crucial for assessing open-pit mine slope stability and regional tectonic evolution and geodynamic processes.
Peng Li, Jinglai Sun, Meifeng Cai, Shengjun Miao, Qifeng Guo, Fenhua Ren, Xu Wu   +6 more
doaj   +1 more source

Insights into fundamental problems of rockburst under the modern structure stress field

Scientific Reports, 2022
Rockbursts are some of the most severe dynamic disasters in coal mines. In this paper, the discrimination method of the tectonic stress field is proposed by analyzing the modern stress field in China.
Hai Rong, Nannan Li, Hongwei Zhang, Dequan Sun, Bingjie Huo   +4 more
doaj   +1 more source

Study on the reconstruction of the paleo-tectonic stress field and its evolution in the Jinchuan mining district, Gansu Province, China

Dizhi lixue xuebao, 2023
The Jinchuan mining district has undergone a complex tectonic evolution history, and detailed analysis of the post-mineralization deformation characteristics and stress field evolution stages needs to be completed.
ZHAO Yuanfang, SHI Wei, ZHANG Yu
doaj   +1 more source

Experimental study on the deformation behaviour, energy evolution law and failure mechanism of tectonic coal subjected to cyclic loads

International Journal of Mining Science and Technology, 2022
Compared to intact coal, tectonic coal exhibits unique characteristics. The deformation behaviours under cyclic loading with different confining pressures and loading rates are monitored by MTS815 test system, and the mechanical and energy properties are
Deyi Gao, Shuxun Sang, Shiqi Liu, Jian Wu, Jishi Geng, Wang Tao, Tengmin Sun   +6 more
doaj   +1 more source

Main controlling factors of natural fractures in tight reservoirs of the lucaogou formation in the jimsar sag, Xinjiang, China

Frontiers in Earth Science, 2023
Natural fractures act as critical flow channels and reservoir space in the Lucaogou Formation tight reservoir of the Jimsar Sag. It is essential to identify the main controlling factors of natural fractures in order to achieve efficient development of ...
Yixin Yu, Yixin Yu, Ze Deng, Jinliang Gao, Peng Li, Chen Zhang, Chen Zhang   +6 more
doaj   +1 more source