Results 71 to 80 of about 6,156 (263)
Valuation method for sub-indicators of rock burst risk based on mining depth and tectonic stress
Meitan kexue jishuThe mechanical properties of deep rocks differ from those of the shallow layers due to the complex environment. Rock burst disasters are often induced under the disturbance of coal mining.
Zhen LI +7 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao +5 more
wiley +1 more source
Present-Day Tectonic Stress Evolution in Southern Yunnan Based on Focal Mechanisms. [PDF]
Sensors (Basel), 2023 Fan W, Zhu Y, Ji Y, Feng L, Zhu W, Qu R.
europepmc +1 more source
Deep Underground Science and Engineering, EarlyView.A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen +5 more
wiley +1 more source
On the Relationship Between Oceanic Plate Speed, Tectonic Stress, and Seismic Anisotropy. [PDF]
Geophys Res Lett, 2022 Kendall E +3 more
europepmc +1 more source
Deep Underground Science and Engineering, EarlyView.Our study reveals that caving‐enhanced geothermal systems (C‐EGS) with adequately fractured reservoirs achieve optimal heat extraction by minimizing preferential flow paths, while conventional fracturing (F‐EGS) and pipe‐based (P‐EGS) systems suffer accelerated thermal drawdown.
Fangchao Kang +4 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang +5 more
wiley +1 more source
Shuiwen dizhi gongcheng dizhiUnder complex geological and geostress conditions, the design of mountain-adjacent tunnels in hard rock areas faces numerous challenges, particularly in determining the tunnel’s buried depth.
Yuping YAN +7 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
wiley +1 more source
Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs
Deep Underground Science and Engineering, EarlyView.A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao +5 more
wiley +1 more source