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Water inrush characteristics and hazard effects during the transition from open-pit to underground mining: a case study [PDF]

open access: yesRoyal Society Open Science, 2019
During the transition from open-pit to underground mining in iron ore mines, water inrush is a prominent problem for mine safety and production. In this paper, a comprehensive method that incorporates hydrochemical analysis and numerical simulation is ...
Huijie Zhang   +6 more
doaj   +2 more sources

Water inrush type division and water inrush mode in Fengfeng Mining Area

open access: yesMeikuang Anquan, 2021
With the depletion of shallow coal resources, the existing production mines in Fengfeng Mining Area have entered the era of deep coal mining. Deep coal mining will face the problems of high ground stress, high temperature, high karst water pressure ...
LIU Bo   +4 more
doaj   +1 more source

Calibration of Water Inrush Channel and Numerical Simulation of Water Inrush Process in Coal Mine Roof

open access: yesFrontiers in Earth Science, 2022
The surrounding rock of a coal mine roof fractures with the excavation of the underground working face in coal mining. These mining-induced fractures are connected and extended upward to form water inrush channels.
Dongdong Sun   +14 more
doaj   +1 more source

Mine floor water inrush prediction model and application based on AHP vulnerable index method

open access: yesMeikuang Anquan, 2023
With the continuous increase of coal seam mining depth, the coal mine production faced with complex water inrush mechanism and changeable main controlling factors, which makes the prediction of floor water inrush more difficult.
ZHANG Chengbin, ZHANG Peng
doaj   +1 more source

Investigation on Mining-Induced Floor Water Inrush from Column and Its Control Based on Microseismic Monitoring

open access: yesAdvances in Civil Engineering, 2023
Water inrush is the biggest threat for safe mining in the Ruifeng coalmine, located in North China. In the study mining area, the floor water inrush is mainly caused by mining activities and collapse column.
Run Liu   +3 more
doaj   +1 more source

Mechanism Analysis of Delayed Water Inrush from Karst Collapse Column during Roadway Excavation Based on Seepage Transition Theory: A Case Study in PanEr Coal Mine

open access: yesEnergies, 2022
Water inrush disaster is one of the major disasters affecting the production safety of coal mines following roof caving, fire, gas outburst, and dust explosion disasters.
Yu Liu   +5 more
doaj   +1 more source

Water Inrush Risk Assessment Based on AHP and Advance Forecast Approach: A Case Study in the Micangshan Tunnel

open access: yesAdvances in Civil Engineering, 2021
Water inrush is a serious geological disaster in tunnel. For the effective prevention and control of the occurrence of water inrush, a static-dynamic water inrush risk assessment method is proposed by considering the Micangshan tunnel as an example ...
Tao Song   +5 more
doaj   +1 more source

Processes and sources identification of intermittent karst water inrush in Xiakou Tunnel

open access: yes地质科技通报, 2021
The investigation and prevention of karst water inrush is a difficult problem in tunnel construction. The Xiakou Tunnel has a long history of karst water inrush.To identify the source of intermittent water inrush and explore the controlling effect of ...
Mingming Luo   +5 more
doaj   +1 more source

Study on water inrush warning information of coal seam floor fault structure

open access: yesEnergy Exploration & Exploitation, 2023
Water inrush from coal floor is a gradual process from generation, and development to disaster. In this process, the geophysical information received by the rock mass will show measurable characteristics of the sudden, and the occurrence of water inrush ...
Siyu Li   +7 more
doaj   +1 more source

Risk Assessment and Water Inrush Mechanism Study of Through-Type Fault Zone Based on Grey Correlation Degree

open access: yesApplied Sciences, 2023
In order to effectively prevent and control the problem of water inrush from the through-type fault floor, based on the analysis of the case data of water inrush from the fault structure in the Fengfeng mining area, the types of karst water inrush from ...
Hao Yang   +6 more
doaj   +1 more source

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