Results 41 to 50 of about 7,244 (206)
Water disaster law and prevention technology of Tangshan Mine based on statistical analysis
Meikuang Anquan, 2022 Mine water disaster is one of the geological disasters which seriously affect the safety production of coal mine. It is of great practical significance to analyze the occurrence regularity of mine water disaster for preventing water inrush accident and ...
FU Chengxiang
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Risk assessment of fault water inrush during deep mining
International Journal of Mining Science and Technology, 2022 With the gradual depletion of shallow coal resources, the Yanzhou mine in China will enter the lower coal seam mining phase. However, as mining depth increases, lower coal seam mining in Yanzhou is threatened by water inrush in the Benxi Formation limestone and Ordovician limestone.
Zhaodan Cao +3 more
openaire +2 more sources
, 2019 To explore new constituents in two-dimensional materials and to combine their best in van der Waals heterostructures, are in great demand as being unique platform to discover new physical phenomena and to design novel functionalities in interface-based ...
Cao, Yi +22 more
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Risk assessment of water inrush in tunnel through water-rich fault based on AHP-Cloud model
Geomatics, Natural Hazards & Risk, 2020 Water inrush is a serious geological disaster in tunnel. Due to the complexity of geological conditions, large-scale water inrush is prone to occur in tunnel through water-rich fault during construction. Based on the comprehensive analysis of influencing
Yaxiong Peng +4 more
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Scientific ReportsWater or mud inrush has become a common geological disaster during tunnel construction in karst areas. To study forming process and mechanism of water and mud inrushes through a filled karst conduit, water inrush and mud inrush model tests were carried ...
Xingjie Wu, Xuxu Yang, Hongwen Jing
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Geomatics, Natural Hazards & Risk, 2018 Risk assessment of water inrush from a coal seam floor is essential for safety in many coal mines. From the point of view of mechanics, such water inrush forms on the floor when the aquiclude breaks under the action of continuous water pressure within a ...
Jianghui He, Weiping Li, Wei Qiao
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Data‐driven analysis of the spatial dependence of grouting efficiency during tunnel excavation
Deep Underground Science and Engineering, EarlyView.Prediction of grouting efficiency using machine learning is enhanced by adopting a training strategy that accounts for the grouting process across multiple rounds. Abstract Grouting with water–cement mixtures is the most widely used and cost‐effective method for managing excess water inflow during tunnel construction.
Huaxin Liu, Xunchang Fei, Wei Wu
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Power quality and electromagnetic compatibility: special report, session 2 [PDF]
, 2015 The scope of Session 2 (S2) has been defined as follows by the Session Advisory Group and the Technical Committee: Power Quality (PQ), with the more general concept of electromagnetic compatibility (EMC) and with some related safety problems in ...
Desmet, Jan +2 more
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Deep Underground Science and Engineering, EarlyView.This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su +4 more
wiley +1 more source
Prediction of switching transients in high voltage air-insulated substations [PDF]
, 2009 Describes the process of prediction of switching transients in high voltage air-insulated ...
Judd, M.D., Musa, B.U., Siew, W.H.
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