Results 51 to 60 of about 6,156 (263)

Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula

open access: yesУкраїнський антарктичний журнал, 2022
The study aims to analyze the results of long-term tectonomagnetic observations on the Antarctic tectonomagnetic polygon in the region of the Akademik Vernadsky station to investigate the current geodynamics at the West Coast of the Antarctic Peninsula ...
V. Maksymchuk   +6 more
doaj   +1 more source

Generalized Matsuoka–Nakai criterion considering hydrostatic pressure dependence in the brittle–ductile region

open access: yesDeep Underground Science and Engineering, EarlyView.
Three sets of strength data were selected, including hydrostatic pressure independent within the brittle region (HPI‐B), hydrostatic pressure dependent within the brittle region (HPD‐B), and hydrostatic pressure dependent within the brittle–ductile region (HPD‐BD). For HPI type, the failure envelope within the deviatoric plane remains constant.
Jiacun Liu   +3 more
wiley   +1 more source

Fracture characteristics under the coupling effect of tectonic stress and fluid pressure: A case study of the fractured shale oil reservoir in Liutun subsag, Dongpu Sag, Bohai Bay Basin, Eastern China

open access: yesPetroleum Exploration and Development, 2015
Based on the integrated study on core description, fluid inclusions and basin modeling, and considering the coupling effect of tectonic stress and fluid pressure, the characteristics of fractures were analyzed in the inter-salt fractured shale oil ...
Yang LUO   +3 more
doaj   +1 more source

Tectonic Stress Field in Central Europe

open access: yesAnnals of Geophysics, 1967
Sclieidegger's s t a t i s t i c a l method for the tectonic interp r e t a t i o n of e a r t h q u a k e f a u l t plane solutions is applied t o r e c e n t l y published solutions of e a r t h q u a k e s which occurred in two areas of Central Europe.
SCHEIDEGGER A. E., RANALLI G.
openaire   +3 more sources

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei   +6 more
wiley   +1 more source

Effect of Deviatoric Stress on Deformation Energy of Tectonic Coal: A Modified Energy Model Considering Nonlinearity

open access: yesEnergy Science & Engineering
The deformation energy stored in soil‐like tectonic coal plays a critical role in coal and gas outbursts. Unlike hard rocks, tectonic coal exhibits pronounced stress–strain nonlinearity, invalidating traditional elastic energy models.
Chenghao Wang   +4 more
doaj   +1 more source

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

open access: yesDeep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski   +4 more
wiley   +1 more source

Study on mechanical properties and fractal evolution law of containing tectonic coal combination

open access: yesMeikuang Anquan
To study the mechanical properties of tectonic coal combination specimens, based on the occurrence characteristics of coal seam in a high gas mine, this study carried out the mechanical properties test experiment of loading and fracture process of ...
Qiudong SHAO   +6 more
doaj   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

open access: yesDeep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang   +4 more
wiley   +1 more source

Neotectonics and tectonic stresses of the Sakhalin Island

open access: yesГеодинамика и тектонофизика, 2017
The paper describes the neotectonics of the Sakhalin Island and analyzes the latest and recent tectonic stresses in the study area in order to establish their differences in the Amur and Okhotsk microplates, which boundary is confined to the Tym ...
L. A. Sim   +3 more
doaj   +1 more source

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