Results 71 to 80 of about 7,244 (206)

Mechanism of water inrush in tunnel construction in karst area

open access: yesGeomatics, Natural Hazards & Risk, 2016
With the rapid developing trend of long, large and deep construction characteristics for underground engineering in the world, China has the largest number of karst tunnels with the wide scales and great difficulties.
Liping Li   +4 more
doaj   +1 more source

Water‐Inrush Risk Assessment of Roof‐Confined Aquifer Strata Based on FAHP–RF Model in the Arid–Semiarid Ecotone: A Case Study of Zhuanlongwan Coal Mine

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
Water inrush poses a serious threat to the safety and sustainability of coal mining operations, particularly in arid–semiarid regions where confined aquifers overlie coal seams. Therefore, an accurate assessment of roof water inrush risk is essential to prevent water hazards on the roof.
Sen Xue   +7 more
wiley   +1 more source

Application of High‐Precision Microgravity Detection Technology in the Exploration of Ultradeep Gas Reservoirs in the Middle Part of the Southern Margin of Junggar Basin

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
This study is aimed at identifying the ultradeep gas reservoir structure and gas‐rich areas in the middle section of the southern margin of the Junggar Basin. Based on high‐precision microgravity data collected from the complex terrain areas of Huxi and Tudong in the middle section of the southern margin of the Junggar Basin, residual gravity anomalies
Zhihua Song   +8 more
wiley   +1 more source

Bridged Conductive Nanofibrous Membrane Overcoming the Porosity‐Conductivity Trade‐Off for Electrothermal Air Purification

open access: yesAdvanced Science, Volume 12, Issue 47, December 18, 2025.
To overcome the porosity‐conductivity trade‐off in conductive porous membranes, a conductive nanofibrous membrane bridged by self‐assembled PPy nanowires is constructed, integrating multiscale porosity with continuous electron pathways. This material‐structure‐function strategy achieves low‐resistance and high‐efficiency filtration combined with ...
Xiaoxue Yao   +10 more
wiley   +1 more source

Application of Water-Plugging Grouting Material in Water-Rich Fracture Zone of Deep-Buried Tunnel

open access: yesRenmin Zhujiang, 2022
Considering the water inrush disaster occurred in a deep-buried drill-and-blast tunnel passing through the water-rich fracture zone,this paper analyzes the characteristics of the water inrush disaster and the special requirements for the performance of ...
LI Xiaobing
doaj  

Multi‐Scale Evolution Mechanism of Water‐Conducting Fracture Zone in Deep‐Mining Hard Roof

open access: yesEnergy Science &Engineering, Volume 13, Issue 12, Page 6283-6301, December 2025.
ABSTRACT This study addresses the significant discrepancies in traditional methods for predicting the height of water‐conducting fracture zones in deep‐mining hard roofs, which can lead to catastrophic water inrush events. The 110,504 working face of Banji Coal Mine was chosen as the research site to systematically investigate the development ...
Yingfu Li   +4 more
wiley   +1 more source

Evaluation of the EMC environment generated by a static var compensator [PDF]

open access: yes, 2009
Describes an evaluation of the EMC environment generated by a static var ...
Li, Q., Siew, W.H., Wang, W., Zhang, L.
core  

Visible camera cryostat design and performance for the SuMIRe Prime Focus Spectrograph (PFS)

open access: yes, 2016
We describe the design and performance of the SuMIRe Prime Focus Spectrograph (PFS) visible camera cryostats. SuMIRe PFS is a massively multi-plexed ground-based spectrograph consisting of four identical spectrograph modules, each receiving roughly 600 ...
Barkhouser, Robert   +15 more
core   +1 more source

Construction of Domain Knowledge Graph Base for Coal Mine Rock‐Burst Prediction and Prevention Based on Ontology

open access: yesEnergy Science &Engineering, Volume 13, Issue 11, Page 5510-5524, November 2025.
ABSTRACT In China, as the mining depth of coal mines increases, the occurrence conditions of coal seams are becoming increasingly complex, leading to a continuous rise in the risk of rock‐burst. The frequent occurrence of such accidents has caused severe losses to the safe production of coal mines.
Shuheng Zhong, Qi Wang, Haoliang Yin
wiley   +1 more source

Rapid assessment of water and mud inrush likelihood in karst tunnels based on decision tree model: A case in Siding tunnel of Guihe expressway

open access: yesCarsologica Sinica
With the ongoing advancement of infrastructure projects, such as highways and railways, in China, karst tunnel construction is increasingly evolving towards longer, larger, and deeper dimensions. The problem of water and mud inrush in tunnels is becoming
Baode GUO   +5 more
doaj   +1 more source

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