Results 21 to 30 of about 25,625 (255)

Nanopore Structure and Mechanical Properties in Brittle Tectonically Deformed Coals Explored by Atomic Force Microscopy

open access: yesFrontiers in Earth Science, 2022
Tectonically deformed coals (TDCs) are of great importance to coalbed methane exploitation and coal mining safety. Compared to primary coals, reservoir properties of TDCs have been transformed greatly by tectonic stress.
Ningyuan Zhang, Suping Yao, Yuhui Wang
doaj   +1 more source

Experimental Study on the Mechanical Properties of Tectonic Coal Using Reconstituted Coal Specimens

open access: yesSustainability, 2023
Tectonic coal, an aggregate of coal particles formed by compacting pulverized coal, has been developed extensively in China. Currently, reconstituted coal specimens are widely adopted to investigate the mechanical properties of tectonic coal, but they have a low compaction degree compared to the tectonic coal in the field.
Yubo Wang   +3 more
openaire   +1 more source

Geophysical response characteristics and genetic analysis of tectonic coal:take Zhaozhuang coal mine in Jincheng mining area as an example

open access: yes矿业科学学报, 2018
The distribution of tectonic coal is of great importance to the exploration and development of coal-bed methane and the safety production of coal mine.The Zhaozhuang coal mine in Jincheng mining area is took as example.Firstly, the vertical distribution ...
Zou Guangui, Li Laichun
doaj   +1 more source

Analysis of the Coal and Gas Outburst Mechanism from the Perspective of Tectonic Movement

open access: yesGeofluids, 2021
Coal and gas outburst is the extreme instability caused by stress, gas, and coal. In this review article, dominant factors and inducing factors of outburst were summarized; geologic features of typical outburst cases and the effects of tectonic movement ...
Qingyi Tu   +4 more
doaj   +1 more source

Scientific and methodological foundations to develop numerical hydrodynamical models of mine fields in Donbas [PDF]

open access: yes, 2018
The paper considers specific character of hydrogeological problems arising during the whole cycle of a mining enterprise operation; the most reliable their solutions are implemented in the context of numerical hydrodynamical ...
Dereviahina, Nataliia   +2 more
core   +1 more source

Experimental Study on Adsorption Pore Structure and Gas Migration of Coal Reservoir Using Low-Field Nuclear Magnetic Resonance

open access: yesAdvances in Civil Engineering, 2020
For the quantitative recognition and characterization of the flow characteristics of polymorphism coalbed gas in tectonic coal, experiments on pore morphology, pore diameter distribution, and methane adsorption law in outburst tectonic coal were carried ...
Jiazhuo Li   +7 more
doaj   +1 more source

Human-triggered earthquakes and their impacts on human security [PDF]

open access: yes, 2010
A comprehensive understanding of earthquake risks in urbanized regions requires an accurate assessment of both urban vulnerabilities and earthquake hazards.
Christian Klose, Christian Klose
core   +4 more sources

Sedimentary geology of the Middle Carboniferous of the Donbas region (Dniepr-Donets basin, Ukraine) [PDF]

open access: yes, 2015
Peer reviewedPublisher ...
Abels, Hemmo A.   +8 more
core   +2 more sources

Multiple-Level Tectonic Control of Coalbed Methane Occurrence in the Huaibei Coalfield of Anhui Province, China

open access: yesEnergies, 2022
The Huaibei coalfield is an important coal base and one of the hot spots of coalbed methane development in China. Therefore, a detailed understanding of gas occurrence in the Huaibei coalfield is of great significance.
Zhigen Zhao, Sheng Xue
doaj   +1 more source

Forming peculiarities and manifestation of tectonic faults in soft rocks [PDF]

open access: yes, 2013
Features of distribution of tectonic structures in soft rocks confirm the presence of horizontal tectonic forces in the formation of faults and are based on the manifestation of their morphological features.
Халимендик, Юрий Михайлович   +1 more
core   +2 more sources

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