·In order to simulate the gestation process of rockbursts the failure patterns of surrounding rocks of a circular tunnel were first studied by RFPA taking into consideration the non homogeneity of rock materials and different in situ stresses An overview of numerical modelling applied to deep mining Sousa E Vargas Fernandes
·Evolution of Local Mine Stiffness with Mining Process Insight from Physical and Numerical… 1 3 far field mining at the adjacent panel may not cause a
·The stability of air flows in diagonal airways was investigated in Jia and Liu 2009; Dziurzyński et al 2017 In Jia and Liu 2009 the use of a multiple regression method made it possible to analyze a separate diagonal connection of mine method for determining the sensitivity of airflow directions in ventilation subnetworks to the changes in air
·In the mining process of a coal seam containing a fault structure due to the influence of mining stress the rock mass inside the fault zone and between the fault and the coal pillar that is preserved to prevent fault activation is prone to producing damage and activation This study is focused on this problem Based on the analysis of the failure activation and
· School of Mining Engineering University of Witwatersrand The South African platinum mining industry is using a number of different mining methods including variations of the same method to extract the narrow reef tabular platinum deposits of the Bushveld Complex These mining methods fall into three broad categories namely
·Quantitative data analysis is a systematic process of examining interpreting and drawing meaningful conclusions from numerical data It involves the application of statistical methods mathematical models and computational techniques to understand patterns relationships and trends within datasets
·The causes of ground fissure formation are closely related to the change in the stress state in a loose layer but many researchers often ignore the dynamic processes of mining when studying mining induced damage mechanisms The study of stress evolution in a loose layer during mining can help to reveal the causes of surface damage and its self healing
·The evolution law of surrounding rock pressure in deep mining is explored in this paper by analyzing the stress displacement and failure progress of surrounding rock in the deep mining of Beiminghe Iron Mine by in situ monitoring and FLAC3D numerical simulation The evolution characteristics of surrounding rock deformation of different layer roadways during the
·Separation grouting filling technology is widely used in surface subsidence management because of its simple process and good overburden control effect while the changing pattern of overburden off layer space OS during the mining process plays a key role in the selection of grouting timing and rock control effect In this paper the law of OS
Mine tailings generated during mining should be handled effectively as a simultaneous process with the mining operation Mine tailings management with a minimum impact to the environment is a
·Increasing population levels growing economies rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals leading to growing concerns regarding their availability and the global efficiency of the mine supply chain Mine tailings consisting of process effluents that are generated in a
·In this study a numerical code called Rock Failure Process Analysis RFPA was used to simulate the process of mining induced water inrush from an underlying collapse column Combined with a fully coupled flow stress damage FSD model Tang et al 2002 ; Li et al 2012 it is expected to provide insights into where when and how the critical water inrush
·1 School of Mining Engineering Anhui University of Science and Technology Huainan China; 2 Energy Research Institute of Hefei Comprehensive National Science Center Anhui Energy Laboratory Hefei China; In this paper the authors address the issue of large solid waste output and surface subsidence in the western coal base They focus on the 110904
·Two main procedures and technologies are used in the entire mining process namely forward roadway tunnelling and backward coal seam mining 1 2 However many incidental problems are associated with this process such as high mining induced stresses squeezing failure collapse and fractures that affect the safety and productivity of coal mining
·Ore dilution is a fundamental problem for the production process in underground mining operations Especially in open stoping methods of underground mining the continuous estimation monitoring and treatment of instability issues is considered necessary in order to maintain the consistency of the production process This paper aims to combine
·Data mining platforms Comprehensive platforms that support the entire data mining process are essential for some organizations KNIME and RapidMiner stand out for their user friendly interfaces and extensive data processing and modeling capabilities These platforms allow for efficient analysis and integration of data from various sources
·Water inrush is one of the most dangerous disasters in coal mining Due to the large scale mining and complicated hydrogeological conditions thousands of deaths and huge economic losses have been caused by water inrush disasters in China There are two main factors determining the occurrence of water inrush water source and water conducting
·Cost efficiency 4 Surface mining is generally more cost effective than underground extraction process is less complex and requires less capital and operational investment Safety 5 Generally surface mining is considered safer for miners compared to underground mining which has risks associated with unstable ground conditions
Click and drag on elements in order The Cross Industry Standard Process for Data Mining CRISP DM methodology consists of six major phases Please order the six phases from the start phase to end phase Business understanding The first phase focuses on understanding the data mining project and its objectives Evaluation After developing data mining models we
Study with Quizlet and memorize flashcards containing terms like What is the term used to describe computer systems that demonstrate human like intelligence and cognitive functions such as deduction pattern recognition and the interpretation of complex data Multiple choice question Business analytics Artificial intelligence Data mining Machine learning With either
·The studies have been carried out and the method for managing the process of changing connections between devices controllers switches of the technical system was developed in order to obtain
·In addition to providing more accurate estimates of recovery integrating the orebody model with the selection process provides a means of optimising recovery optimising blasting and loading strategies and optimising fragmentation to reduce energy costs at subsequent stages of the mining process haulage mineral processing
·METHOD SELECTION A NUMERICAL APPROACH Chapter 4 David E Nicholas Vice President Call & Nicholas Inc Tucson Arizona INTRODUCTION In this paper a numerical process for selecting a mining method with the emphasis on underground mass mining techniques such ns caving induced caving and stoping is proposed
