Results 131 to 140 of about 5,939,968 (240)

Learning from the Prevention and Early Intervention Initiative in Ireland [PDF]

, 2016
Centre for Effective Services (CES)
core   +6 more sources

Experimental and smoothed particle hydrodynamics‐finite element method simulation investigation of synergistic erosion mechanism of gangue‐based abrasive water jets

Deep Underground Science and Engineering, EarlyView.
This study proposes an eco‐friendly coal permeability enhancement technique by utilizing mine waste gangue as an abrasive in high‐pressure water jets. Integrating erosion experiments with smoothed particle hydrodynamics‐finite element method coupled simulations, the research study elucidates the flow field dynamics and a nonlinear solid–liquid ...
Qingxiang Wang, Jiaxu Tang, Qiheng Ren, Ding Wang, Tong Wang   +4 more
wiley   +1 more source

Modeling and monitoring injectivity evolution during cold CO2 injection with field evidence from aquistore carbon capture and storage operations

Deep Underground Science and Engineering, EarlyView.
This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri, Stephen Talman, Erik Nickel, Rick Chalaturnyk   +3 more
wiley   +1 more source

Pore Structure Reconstruction and Gas-Water Dual-Flow Simulations Combined with CT Scans and NMR Measurements on Coal Particle Samples. [PDF]

ACS Omega
Zou M, Zhang H, Cui J, Shao Y, Song Y, Liang K, Sun Y.   +6 more
europepmc   +1 more source

Investigation on the mechanical behavior of the multiple‐layered lining structure of a water conveyance tunnel with high internal water pressure

Deep Underground Science and Engineering, EarlyView.
This study presents large‐scale similarity model testing (geometric ratio 3.6) of an innovative multiple‐layered lining system—comprising exterior precast segments, middle self‐compacting concrete, and an interior steel pipe—for high‐pressure (0.75 MPa) water conveyance tunnels.
Ramin Asadi, Shimin Wang, Chang Liu, Zhiyu Lin, Chuan He   +4 more
wiley   +1 more source

Competitive Effects of Cu(II) on the Adsorption of Cd(II), Mn(II), and Zn(II) from Neutral Mine Drainage Using Low-Cost Adsorbents. [PDF]

Materials (Basel)
Ďuricová A, Schmidtová J, Biroň A, Szilágyi M, Sečkár M, Salva J, Vanek M, Pochyba A, Schwarz M, Samešová D, Poništ J, Výbohová E, Veverková D.   +12 more
europepmc   +1 more source

Dynamic prediction of coal and gas outburst risk based on quantitative analysis of stress–energy evolution and adaptive correction

Deep Underground Science and Engineering, EarlyView.
This study quantitatively analyzed the spatiotemporal evolution of stress redistribution ahead of the working face by integrating coal seam distribution, tectonic stress anomalies, gas pressure, and mining‐induced disturbances. An R‐value criterion for coal and gas outburst (CGO) risk assessment was established based on energy principles.
Yingjie Zhao, Xueqiu He, Dazhao Song, Liming Qiu, Minggong Guo, Jie Liu, Qiang Liu, Yi Zhu   +7 more
wiley   +1 more source

Experimental and Numerical Study on Gas-Displacing-Water in Coal Reservoirs under Different Confining Pressures Using LF-NMR. [PDF]

ACS Omega
Liu K, Wang Q, Xia Y, Sun C, Yuan K, Yue W, Zhao S, Wang X.   +7 more
europepmc   +1 more source

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

Deep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu, Xiang Ci, Weizhong Chen, Jianping Yang   +3 more
wiley   +1 more source

Experimental study on the sand discharge characteristics of a swirling sand dredging device in a reservoir area with multiple mud and sand rivers. [PDF]

Sci Rep
Wang Z, Wang Y, Xi H, Luo T, Miao T, Liu K.   +5 more
europepmc   +1 more source