Results 1 to 10 of about 3,781 (170)
Scientific ReportsThe hydrogeological conditions of the Qianbei coalfield are complex, and karst water in the roof rock frequently disrupts mining operations, leading to frequent water inrush incidents.
Lulin Zheng +6 more
doaj +5 more sources
Applied Sciences, 2022 The accurate prediction of the height of the water-conducting fracture zone is essential for the prevention of roof damage by water disasters in coal mines.
Cunjin Lu +4 more
doaj +5 more sources
A Case Study of the Water Abundance Evaluation of Roof Aquifer Based on the Development Height of Water-Conducting Fracture Zone [PDF]
Energies, 2020 In the eastern mining area of Ningxia, China, multi-layered sandstone aquifers are widely distributed in the underground. However, the water abundance of these aquifers is not clear, which brings great challenges to the prevention and control of mine ...
Wen Zhai +7 more
doaj +5 more sources
Multiple Influence Factor Sensitivity Analysis and Height Prediction of Water-Conducting Fracture Zone [PDF]
Geofluids, 2021 To explore the influence law and sensitivity of various factors on the height of the water-conducting fracture zone, and further predict the development height of the water-conducting fracture zone, taking the field survey and collected actual measured ...
Xiaobin Li +4 more
doaj +3 more sources
Meikuang Anquan, 2021 Most coal mines in Ordos Basin are mainly Jurassic coal seams. The mining conditions are characterized by large mining height and depth. The roof aquifer is numerous and poses a serious threat to mine safety.
QIN Wei, LI Wenping
doaj +3 more sources
Predicting the Water-Conducting Fracture Zone (WCFZ) Height Using an MPGA-SVR Approach [PDF]
Sustainability, 2020 Mine water that inrushes from coal-roof strata has always posed a substantial threat to mining activities every year. Therefore, an accurate prediction of the water-conducting fracture zone (WCFZ) height in the mining overburden strata is of great significance for the prevention and control of mine water accidents.
Jinfu Lou
exaly +3 more sources
SustainabilityStudying the evolution law of overlying rock fissures and predicting the development height of water-conducting fissure zones is the key to preventing roof water damage, protecting mine water resources, and realizing the safe and sustainable development of the mine. To study the overburden fracture evolution law of coal mining under aquifer conditions,
Jiabo Xu, Yang Daming
exaly +3 more sources
Failure and development height of overlying rock of a water flowing fracture in goaf under a karst aquifer [PDF]
Scientific ReportsThe factors leading to mine water inrush accidents are mainly sources of water, water channels, and intensity of water inrush. Mine water rush depends mostly on whether damage leads to the overlying strata of the working face penetrating the overlying ...
Lulin Zheng +6 more
doaj +3 more sources
Applied Sciences, 2022 To study the caving of thick hard overburdens and evolution of water-conducting fracture zones in fully mechanized top-coal caving faces of gently inclined extra-thick coal seams, we comprehensively analyzed the 8103 working face of the Beixinyao Coal ...
Yang Zhou, Xueyi Yu
doaj +2 more sources
Sustainability, 2023 The height of water-conducting fracture zone (HWCFZ) is one of the important technical parameters for water-preserved coal mining. The purpose of this paper is to acquire information about the height development characteristics of water-conducting ...
Xikun Chang, Mingyang Liu
exaly +2 more sources