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
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A Model to Estimate the Height of the Water-conducting Fracture Zone for Longwall Panels in Western China [PDF]
Mine Water and the Environment, 2020 Accurate prediction of the height of the water-conducting fracture zone (WCFZ) is very important for safe coal mining, water resource storage, and protecting the environment. The proportion coefficient of hard rock and the actual height of the top caving coal were defined to predict the height of the WCFZ more accurately.
Xiang He +3 more
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Evolution of Overburden Fractures and the Water-Conducting Fracture Zone in Closely Spaced Coal Mine Seams under Highly Water-Rich Aquifers [PDF]
ACS OmegaRisks of water-related mine incidents are related to water source, pathways, and water inrush intensity. This study aims to clarify the evolution of overburden fractures under repeated mining in closely spaced coal seams and to identify the presence of a connection between the damaged overburden and the overlying highly water-rich aquifer.
Xiong Liu +6 more
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Elastic wave prospecting of water-conducting fractured zones in coal mining
Scientific ReportsIn order to understand the development law of water-conducting fractures in overlying strata during the mining process of coal seam, an elastic wave exploration method based on key stratum theory is proposed to predict the height of water-conducting ...
Bingchao Zhao +4 more
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Comparison of prediction models for the development height of water-conducting fractured zone
Meitan kexue jishu, 2023 In order to improve the accuracy of the prediction of the development height of the water-conducting fissure zone, by collecting the measured data of the lead height in the areas with similar geological and mining conditions in the past, the four factors
XUN Bohui, LYU Yiqing, YAO Xing
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Prediction of coal mine water conduction fracture zone height based on integrated learning model [PDF]
Scientific ReportsAbstract To enhance the accuracy of predicting the height of water-conducting fracture zones (WCFZ) in coal mines, this study proposes a novel stacked ensemble learning model. The model integrates XGBoost and Support Vector Regression (SVR) as base learners, with CatBoost serving as the meta-learner, forming a two-layer architecture.
Wang, Meng +8 more
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Study on Water-conducting Fracture Height of Shallow Buried Coal Seam with Thick Loose Bed and Thin Base Rock [PDF]
Meikuang Anquan, 2020 Water-conducting fissures formed in shallow seam mining in thin bedrock are easy to cause water resources damage. The determination of the height of water-conducting fissures is the key to avoid the damage of aquifers.
CHEN Hui, CAO Qijia, WEI Zhao, ZHANG Dongdong
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Research on development height of overlying water-conducting fault zone in shallow seam mining in Shennan Mining Area [PDF]
Meikuang Anquan, 2023 Aiming at the fact that the water-conducting fissures in the overlying rock may cut through aquifers and induce water inrush disasters by repeated mining of shallow-buried and short-distance coal seams in Shennan Mining Area, this paper adopts the ...
XIE Danghu, WANG Jianwen2LI Minfeng, GUO Shuquan, WANG Eryun, MA Zongyu, DU Chaojie
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Dynamic evolution of water conducting fracture zones and roof water hazard early warning based on 3d spatial clustering [PDF]
Scientific ReportsRoof water inrush, induced by upward-developing water-conducting fracture zones (WCFZ) into aquifers, poses significant risks in coal mining. Conventional monitoring methods struggle with accurately capturing the complex 3D spatial structure and dynamic evolution of WCFZs.
Mingyi Cui +4 more
openaire +4 more sources
Determination of Water-Proof Coal (Rock) Pillar Height in Mining Coal Seam Group under Water-Bearing Rock Stratum [PDF]
Shock and Vibration, 2021 In order to determine the reasonable height of water-proof coal (rock) pillar when mining multiple coal seams under aquifer, this paper analyzes the expansion height of water-conducting fracture zone when coal seams mining.
Feng Wan +3 more
doaj +2 more sources