Results 11 to 20 of about 469,044 (305)
Study on Failure Law of Mining Process of Narrow Coal Pillars in Fully Mechanized Caving Roadway [PDF]
E3S Web of Conferences, 2019 In order to determine the damage law of narrow coal pillars in the roadway along the goaf, taking the 4-5(06) working face of a mine in Xinjiang as the research object, the 3D finite difference software FLAC3D is used to analyse the stress and ...
Ren Haifeng, Zhao Xuewen, Cao Peng
doaj +1 more source
Study on Size Optimization of a Protective Coal Pillar under a Double-Key Stratum Structure
Applied Sciences, 2022 Because of the problem that the size of a coal pillar is difficult to determine and it is easy to waste coal resources, taking the Sangou Xindu coal industry as the engineering background, this paper examined the roof cutting and pressure relief ...
Daming Zhang, Hui Zhao, Gang Li
doaj +1 more source
Natural Hazards, 2022 The large deformation mechanical properties of slip zone soil play an important role in the stability evolution of landslide. The traditional landslide stability evaluation method can only be used to calculate a single stability factor, which cannot ...
Junbiao Yan +8 more
semanticscholar +1 more source
Meikuang Anquan, 2020 In view of the problem that the surrounding rock is disturbed severely and the pressure relief deformation is difficult to control in the support technology of pressure relief hole of deep high-stress roadway, this paper takes Beijing Changgouyu Mine as
WANG Jie, REN Jie
doaj +1 more source
Improving reservoir permeability by electric pulse controllable shock wave
Journal of Petroleum Exploration and Production Technology, 2023 Controllable shock wave (CWS) parameters such as amplitude, operating area and number of operations are easy to control and have received extensive attention as a potential new technology for reservoir permeability enhancement.
Xinguang Zhu, Chun Feng, Pengda Cheng
doaj +1 more source
Phase boundary sliding model controlled by diffusionsolution zone in superplastic deformation
Chinese Science Bulletin, 2002 With scanning electron microscope (SEM), the surface morphology of phase boundary sliding (PBS) in superplastic deformation (SPD) of Zn-Al alloy and the diffusion behavior of Zn, Al interfaces in their powers’ sintering have been investigated. The results show that Zn-Al eutectoid microstructure can be achieved through their powders’ sintering, and the
Zhiqiang Shi +4 more
openaire +2 more sources
Fore‐arc deformation controls frequency‐size distribution of megathrust earthquakes in subduction zones [PDF]
Journal of Geophysical Research: Solid Earth, 2009 Seismotectonic deformation in subduction zones seems to follow rather simple spatiotemporal patterns with fore‐arc basins overlying the areas of large slip during quasiperiodic megathrust earthquakes. To study the possible coupling between long‐term deformation and earthquake behavior, we use compressive granular wedges overlying a rate‐ and state ...
Rosenau, M., Oncken, O.
openaire +4 more sources
Journal of Aeronautical Materials, 2022 Electrically driven continuous carbon fiber reinforced shape memory composite (CFSMPC) is a kind of shape memory composite driven by electrical signal to realize controllable deformation.The lightweight cellular structure of continuous carbon fiber ...
WANG Hongyan +3 more
doaj +1 more source
THE MATHEMATICAL FORM OF MATERIAL CONSTITUTIVE LAWS APPLICABLE FOR MODELING OF METAL PLASTIC BEHAVIOR IN SIMULATION OF MACHINING [PDF]
مجله مدل سازی در مهندسی, 2013 Among the effects of strain hardening, strain-rate hardening, and temperature softening, it has been long argued about which effect is predominant in governing the material flow stress in machining. In addition, there is a belief that the temperature and
محمدرضا Vaziri Sereshk +2 more
doaj +1 more source
Machines, 2020 Making “digital twins” for rolling processes and mill equipment should begin with the development of mathematical models of the deformation zone.
M. N. Samodurova +3 more
semanticscholar +1 more source