Slope stability in surface mining pdf

Slope stability analysis is performed to assess the safe design of a humanmade or natural slopes e. Pdf the issues concerned with slope stability in the open cast mines have come to forefront in the mining operations due to increasing pit depth. Show description read online or download slope stability in surface mining pdf. Slope stability in surface mining book by sme pdf pdf book. Design of overall slope angle and analysis of rock slope stability of chadormalu mine using empirical and numerical methods mahdi rasouli maleki1, mohammad mahyar2, kambiz meshkabadi3. The safety and stability of miningslope s vary with mining process and specific requirements. Download slope stability in surface mining book by sme pdf book pdf free download link or read online here in pdf. Slope monitoring did not reveal any movement in and around the pit. Simplicity and relatively good results are the advantages of these methods. As we enter the twentyfirst century, mines are being planned to reach depths of more than 1,100 meters, waste rock embankments have surpassed 600 meters in height, tailings dams have reached heights of 200 meters, and heap leach facilities have topped 150 meters.

Anton has more than 20 years of experience in rock mass characterisation programs for surface and underground mines. Additional laws and regulations associated to mining and reclamation can be referenced in the important links section of the handbook. He applies probability techniques in geotechnical engineering to slope failure analysis or strip stability investigations and slope design for coal strip mines and open pit mines internationally. Stability and movements of openpit lignite mines in northern. Slope movement, coal open pit, slope monitoring, slope stability, landslide. The slope stability analysis was considered only indicative due to the complex nature of the sliding mass fig 2 and greater emphasis was. Fundamentals and methods presents basic principles for the safe design of constructed or natural earth slopes. However, formatting rules can vary widely between applications and fields of interest or study.

Pdf slope stability radar for monitoring mine walls. Slope stability analysis by the limit equilibrium method. Risk management geomechanics application for open pit slope. Riimex602a establish and maintain surface mining ground. Pdf the issues concerned with slope stability in the open cast mines have come to forefront in the mining operations due to. Mining methods, surface mining the line for the pit limit was f ound using the required pit slope and located at the po int that ga ve a waste. Slope stability evaluations by limit equilibrium and finite element methods.

Libya is scheduled to arrive the midpoint of depletion of reserves in 2001 and this. Gravity is the force that acts everywhere on the earths surface, pulling everything in a direction toward the center of the earth. Aiming at the practice of the uniting of surface mining and underground mining and the interaction, the thin plate model of mined slope was established with the. In indian mining conditions, slope design guidelines are yet to be formulated for different. Composition and properties of drilling and completion fluids. Therefore, compared with the permanent work of hydroelectric project, mining slope is. Slope stability, open pit mining, numerical modeling, rock mass strength, failure mechanisms. The fundamentals of slope stability encompass slope movements and methods for stability analysis, mechanics of slope failure and factors of safety, laboratory and field methods to determine the shear strength of soils, estimation of.

Slopew can effectively analyze both simple and complex problems for a variety of slip surface shapes, porewater pressure conditions, soil properties, and loading conditions. Rock excavation, safety analysis, slope stability, surface mining. Slope balance in floor mining creates a standard platform on which to base right, lowpriced, and secure slope layout and building decisions. The excavation process requires cut slopes to be formed on an earlier plain earth surface. Department of civil, mining and environmental engineering. Slope stability is the resistance of inclined surface to failure by sliding or collapsing. This symposium comprises more than 100 technical papers available electronically or as a printed book, as well as over 35 hours of. Slope stability evaluations by limit equilibrium and. Surface slope failure on april 18, 2018, a frontend loader operator observed that a portion of the dirt dump or refuse pile located on the top rim of the quarry had sloughed and the material had slid down to multiple benches below.

New slope stability considerations for deep open pit mines. The slope stability radar is an innovative technology which has recently been adopted by the mining industry. Evaluation of open pit mine slope stability analysis. The distortion of mined slope under openpit and underground mining was drew from strata angle alter evoked from ceiling distortion, which can be used as the.

An estimated 10,000 to 15,000 tons of material was involved in the slide. The influence of underground mining on pit slope stability was mainly discussed, and the selfstabilization of underground stopes was also studied. Society for mining, metallurgy, and exploration, 2009. This innovative technology is based on radar technology t o re motely scan pit slopes to. Society for mining, metallurgy, and exploration 30. The west virginia surface coal mining and reclamation act 223 and the west virginia surface mining reclamation regulations 38csr2 are available for you to read or print directly from the internet. Study on stability of surface mine slope influenced by underground. The endwalls of surface mines will suffer double disturbance of surface mining and underground mining, with the coal mined by the latter. The beneficial effect of reinforcement was then 374 julyaugust 2003 the journal of the south african institute of mining and metallurgy figure 1case study data on overall pit slope angle versus slope. Slope stability study for optimum design of an opencast project. Internal stability can be assured through project specifications by requiring granular materials. Libya has the biggest petroleum reserves of any nation in africa and because creation all started in 1961 over 20 billion barrels of oil were produced. And it will influence the slope stability, surface mining and transportation safety, bringing a new research topic of surface and underground mining.

In indian mining conditions, slope design guidelines are yet to be formulated for different types of mining practices and there is a growing need to develop such guidelines for maintaining safety and productivity. Study on stability of surface mine slope influenced by. Slope stability evaluations by limit equilibrium and finite. Introduction slopes of mines and quarries, some of which may reach several hundred meters deep, must be regarded as geotechnical works in the sense that we speak of mine works or civil engineering works. The author named below wishes to contribute a paper referred to as the work for the proceedings of the 2020 international symposium on slope stability in open pit mining and civil. In general, thestability of slope only needs to meet the safety of mining, which ensures the stability in mining production period. Stability analysis and design of open pit mine slope in. Slope stability in surface mining book by sme pdf pdf. According to hartman 2002 many fatal accidents due to slope failure in nigeria mines indicate the urgent need of conducting slope monitoring for the working benches as well as dumps. Read online or download slope stability in surface mining pdf. Mnm close call accident alert surface slope failure.

The random finite element method was used to analyze the probability of the rock mass stability degree of both pit slopes and underground stopes. Slope stability analysis forms an integral part of the opencast mining operations during the life cycle of the project. The comparative study among the le methods shows that bsm is as good as m. Rock slope design considerations case studies in rock slope stabiliy. Slope stability is of critical importance in the process of surface underground mining combination. New slope stability considerations for deep open pit mines saimm. Risk management geomechanics application for open pit. Design of overall slope angle and analysis of rock slope. A model study of slope stability in mines situated in south india. Sme pdf slope stability in surface mining by hustrulid, william a mccarter, michael k van zyl, dirk j. Slope stability in surface mining documents the progressive rise in technical understanding and sophistication in the field. In open pit mining, mineral deposits are mined from the ground surface and downward. Pdf determining slope stability in a mining operation is an important task.

With the increasing depth of surface mining excavations, the problem of stability of slopes is becoming a major concern for the mining engineers. Riimex602a establish and maintain surface mining ground control and slope stability systems date this document was generated. All books are in clear copy here, and all files are secure so dont worry about it. The global mining industry interest and support for the online event is overwhelming and we are truly excited to deliver the 2020 international slope stability in open pit mining and civil engineering online event. Stability and reliability of pit slopes in surface mining. The slope stability is governed by the local geological. Fhwa nhi06088 6 slope stability soils and foundations volume i 6 3 december 2006 6. Thus, the weight of its contents to be larger so it will reduce the stability of the slope. On a flat surface the force of gravity acts downward. A model study of slope stability in mines situated in. The limit equilibrium method is the most common approach for analyzing slope stability in both two and three dimensions. Slope stability is of critical importance in the process of surfaceunderground mining combination. Pit slope stability consultants geotechnical engineering.

Slope stability accidents are one of the leading causes of fatalities at u. As the mining method is turning from open pit mining to sag by mining, the vertical height of openpit mine slope continues to increase, the slope deformation and failure mode has close relationship with regional geological structure characteristics and the rock mass structure feature, the stability is influenced largely by rock mass, joints and fissures, and blasting vibration qiao and li 2004. Only be continuously collecting and exchanging information can design concepts, construction methods, monitoring strategies, and. They are certainly major factors in cut slope stability and in. Description of the book slope stability in surface mining 2000. Read online slope stability in surface mining book by sme pdf book pdf free download link book now. Stability of the cut slopes is crucial for the safe and economical mining operations. Slope stability analysis slopew is the leading slope stability software for soil and rock slopes. Mining engineering, tunnel consulting engineers, tehran iran. This engineer manual em provides guidance for analyzing the static stability of slopes of earth and rockfill dams, slopes of other types of embankments, excavated slopes, and natural slopes in soil and soft rock. The mavropigi mine has been mined since 2003 and at present the excavated slopes have reached depths.

The spokane research laboratory of the national institute for occupational safety and health niosh is currently conducting research to reduce the fatalities associated with slope failures and other unexpected failures of ground. Girard1 and ed mchugh1 1national institute for occupational safety and health, spokane research laboratory. Therefore, compared with the permanent work of hydroelectric project, mining slope is a kind of. As we enter the twentyfirst century, mines are being pl. Methods for analysis of slope stability are described and are illustrated by examples in the appendixes.

Pdf study of slope stability open pit mining, algeria. Pm for normal condition in circular shear surface ss analysis. It was also used in determining the most suitable remedial measure for the critical slope. Slope stability 2020 2020 international symposium on slope. Pdf evaluation of open pit mine slope stability analysis. Slope stability santiago chile, november 2009 risk management geomechanics application for open pit slope design and performance the assessment and management of risk in the mining industry is becoming an integral component of project development from. Slope stability 2020 2020 international symposium on. Slope stability analysis of bench in complete construction. Slope stability, triggering events, mass movement hazards factors that influence slope stability gravity the main force responsible for mass movement is gravity. In light of the current covid19 situation, and in the best interest of public health and the global mining community, the acg 2020 international symposium on slope stability in open pit mining and civil engineering, 12 14 may 2020, will be delivered to symposium delegates via online media facilities, both live and on demand. Slope stability study for optimum design of an opencast. Slope stability analysis forms an integral part of the opencast mining operations during.

Slope stability, open pit mining, numerical modeling, rock mass strength. Rock excavation, safety analysis, slope stability, surface mining introduction the geotechnical study and slope design was. Slope stability, triggering events, mass movement hazards. Only be continuously collecting and exchanging information can design concepts, construction methods, monitoring strategies, and reclamation practices keep pace with the times. Stability and movements of openpit lignite mines in. Stability and movements of openpit lignite mines in northern greece. A model study of slope stability in mines situated in south. The spokane research laboratory of the national institute for occupational safety and health niosh is currently conducting research to reduce the fatalities associated with slope failures.