slope failure open pit mines in nigeria

In 1996 a slope failure occurred at the Round Hill open pit mine operated by Macraes Mining Company Ltd The failure as shown in Figure 1 involved three benches at an intermediate slope that was being pushed back towards the final high wall location Figure 1 Photograph of pit area involved with slope failure The slope failure was well documented...We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment. which can crush all kinds of metal and non-metallic ore, also can be dry grinding and wet grinding.If you are interested in our products or want to visit the nearby production site, you can click the button below to consult us.Welcome to our factory to test machine for free!

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  • 100Th Limestone Crushing Line In Switzerland

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  • Analysis of a slope failure in an open pit mine using

    Analysis of a slope failure in an open pit mine using

    In 1996 a slope failure occurred at the Round Hill open pit mine operated by Macraes Mining Company Ltd The failure as shown in Figure 1 involved three benches at an intermediate slope that was being pushed back towards the final high wall location Figure 1 Photograph of pit area involved with slope failure The slope failure was well documented

  • Slope failure incidents and other stability concerns in

    Slope failure incidents and other stability concerns in

    Nov 01 2019 · From a mining perspective most open pit lignite mines have sufficient operational flexibility to withstand considerable slope displacements as long as these are effectively monitored and modeled so that i sliding mechanisms are well interpreted ii predictions regarding their magnitude and kinetic behaviour can be made and iii

  • Slope Stability Analysis of Itakpe Iron Ore Mine Itakpe

    Slope Stability Analysis of Itakpe Iron Ore Mine Itakpe

    The slope stability of the Itakpe Iron Ore Mine has been carried out using computer software ROCKPACK III One hundred and twenty three dip and dip direction values were obtained using compass clinometer The Itakpe Iron Ore Mine was divided into four benches 241 258 m 263 275 m 276 286 m and 308 312 m Joints along the discontinuities were mapped

  • Geological control on slope failure mechanisms in the open

    Geological control on slope failure mechanisms in the open

    It is perhaps not surprising that the slopes southwest of K2 are for geological reasons the least stable in the open pit with up to 60 of the slopes area having undergone failure Barnett

  • Abstract  LOP

    Abstract LOP

    A Brief History of Open Pit Slope Design Slope design is an integral part of the engineering of an open pit regardless of its size Most cases the slope angles are a key component dictating the economic viability of a proposed or current mining project This has resulted in open pit mining operating

  • Slope failure incidents and other stability concerns in

    Slope failure incidents and other stability concerns in

    Nov 01 2019 · From a mining perspective most open pit lignite mines have sufficient operational flexibility to withstand considerable slope displacements as long as these are effectively monitored and modeled so that i sliding mechanisms are well interpreted ii predictions regarding their magnitude and kinetic behaviour can be made and iii

  • Study on the Process and Mechanism of Slope Failure

    Study on the Process and Mechanism of Slope Failure

    Mining under an open pit slope results in the collapse and slide of the slope In this paper a combination of methods including Google Earth and field investigations is applied to investigate the process of eastern slope failure induced by underground mining in the Yanqianshan Iron Mine over five years According to the observed ground deformation features the geomorphic zone of the eastern

  • Slope Stability Analysis of Itakpe Iron Ore Mine Itakpe

    Slope Stability Analysis of Itakpe Iron Ore Mine Itakpe

    The slope stability of the Itakpe Iron Ore Mine has been carried out using computer software ROCKPACK III One hundred and twenty three dip and dip direction values were obtained using compass clinometer The Itakpe Iron Ore Mine was divided into four benches 241 258 m 263 275 m 276 286 m and 308 312 m Joints along the discontinuities were mapped

  • Geological control on slope failure mechanisms in the open

    Geological control on slope failure mechanisms in the open

    It is perhaps not surprising that the slopes southwest of K2 are for geological reasons the least stable in the open pit with up to 60 of the slopes area having undergone failure Barnett

  • CASE STUDY Nchanga Open Pit  GroundProbe

    CASE STUDY Nchanga Open Pit GroundProbe

    with mining activity taking place close to the area of concern Geotechnical staff patrolled the slope to identify and monitor and changes in rock condition Nchanga Open Pit NOP uses SSR technology to optimise safety and recovery In December 2003 a change in movement patterns occurred Rates temporarily increased

  • Abstract  LOP

    Abstract LOP

    A Brief History of Open Pit Slope Design Slope design is an integral part of the engineering of an open pit regardless of its size Most cases the slope angles are a key component dictating the economic viability of a proposed or current mining project This has resulted in open pit mining operating

  • Structural Geology applied to mining  Ingeoexpert EN

    Structural Geology applied to mining Ingeoexpert EN

    Modes of failure Slope stability in open pits – Why it is important to understand the main modes of failure in open pit mines at relatively shallow depths on discontinuities that define toppling wedge and plane failures and also how circular failures develop The emphasis is on actual failures encountered in the field in an actual open pit

  • The Bingham Canyon Mine slope failure

    The Bingham Canyon Mine slope failure

    Apr 15 2013 · A massive slope failure has occurred at the open pit of the Bingham Canyon Mine in Utah A fine testament to the engineers who study rock and soil slope stability in the open pit mine

  • A Coal Mine Dump Stability Analysis A Case Study

    A Coal Mine Dump Stability Analysis A Case Study

    slope failure toe failure and base failure Figure 2 In the slope failure the arc of rupture surface meets the slope above the toe This is possible only when slope angle steep and the soil close to the toe possess high strength Toe failure occurs when the soil mass of the slope above the base and below the base is mainly homogeneous

  • Slope Failure its Types Causes Technical Terms

    Slope Failure its Types Causes Technical Terms

    Mar 04 2019 · A slope failure adjacent to a roadway is shown in Figure 161 The failed soil mass can move very quickly over large distances Your job is to prevent such failure Definitions of key Terms in Slope Failure Slip or failure zone is a thin zone of soil that reaches the critical state or residual state

  • PREDICTION OF SLOPE FAILURE AT LETLHAKANE MINE

    PREDICTION OF SLOPE FAILURE AT LETLHAKANE MINE

    stability status of the open pit mine 3 To serve as a warning system as to which areas of the pit are unstable 4 To give measurements of rates of movement in the unstable zones 5 To serve as a major slope stability risk management tool Since slope failure can have serious economic consequences on an open pit mine slope monitoring is

  • Guidelines for Slope Performance Monitoring  LOP

    Guidelines for Slope Performance Monitoring LOP

    A comprehensive and robust slope performance monitoring system is an essential component of the risk management program in an open pit mining operation Local conditions and experience should drive the development of the monitoring program and development of an early warning system Consideration must also be given to available monitoring alternatives versus local

  • Runout of open pit slope failures an update

    Runout of open pit slope failures an update

    Whittall JR Eberhardt E Hungr O Stead D 2015 ‘Runout of open pit slope failures using and abusing the Farboschung angle’ Proceedings of the 2015 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering The Southern African Institute of Mining and Metallurgy Johannesburg pp 99–112

  • PDF RADAR SLOPE MANAGEMENT AT NCHANGA OPEN PIT MINE

    PDF RADAR SLOPE MANAGEMENT AT NCHANGA OPEN PIT MINE

    Since 10 fatalities due to one slope failure in April 2001 pit slope management strategy at KCM Nchanga Open Pit NOP has been based on slope stability radar for generation of slope performance indicators for management radar for near