slop in coal mines
Slope stability calculation method for highwall mining with
2022.1.7 Abstract. Slope stability is a prominent problem for the efficient application and promotion of highwall mining technology, especially when mining residual coal under high and steep end-slope...
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Slope stability of deep surface coal mines in the presence
2021.6.11 Slope stability is performed on a soil profile with a weak zone, describing a common type of coal mines' failure in several countries. Numerical issues of practical importance are addressed for the simulation and analysis of the problem.
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Prediction of stability coefficient of open-pit mine slope
2023.7.25 1 Altmetric. Metrics. Abstract. The mining of open pit mines is widespread in China, and there are many cases of landslide accidents. Therefore, the problem of slope stability is highlighted....
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A new approach for evaluation of slope stability in large
2022.2.2 The designed height of these slopes is between 200 and 700 m. For such a large open-pit mine, the study of slope stability is an important and arduous undertaking, which is of great significance for ensuring the safety of mine production, designing the best slope angle, and improving economic benefits. Fig. 4.
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Assessment of an Open Cast Coal Mine Slope Stability at
2021.4.30 A large open cast coal mine always needs a stable side slope to prevent collapse due to excessive overburden pressure. The present study was undertaken to assess the stability of slope of an open cast coal mine located in Mohanpur block in the Raniganj coalfield area...
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(PDF) LIMIT EQUILIBRIUM AND NUMERICAL
2022.11.26 This paper presents a critical review of the various approaches used for analysis of slope stability in opencast mines including details of limit equilibrium, and numerical model analysis, with a...
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Methods applied in Australian industry to evaluate coal mine
2020.3.1 A survey of 43 geotechnical engineers in 2016 indicated that kinematic and 2D limit equilibrium analyses are the most commonly applied methods to assess excavated coal mine slope stability. This is due to the relative ease of model construction and rapid computation time compared to 3D models.
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Analysis of Soil Slope Stability under Underground Coal Seam Mining ...
3 天之前 Underground coal seam mining significantly reduces the stability of slopes, especially soil slopes, and an accurate evaluation of the stability of soil slopes under underground mining conditions is crucial for mining safety. In this study, the impact of coal seam mining is considered as the additional horizontal and vertical stresses acting on the
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Stability Analysis of a Multi-Layered Slope in an Open Pit Mine
2023.11.23 The design of slopes in open pit mines requires an in-depth understanding of the ground behavior to predict the potential failure mechanism and to better determine the stabilization measures.
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Analysis of Accidents Due to Slope Failure in Indian Opencast Coal Mines
2019.7.25 An accident due to dump slope failure in Indian opencast coal mine, in which a giant debris flow occurred during routine mining operation is analysed, to identify the gaps in the learning system and the thrust on improving safety by analysing accidents using root cause analysis techniques and to improve the stability of the dump. Opencast mining
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ASSESSMENT OF SLOPE STABILITY IN OPENCAST COAL MINES USING SOFTWARE
2019.9.19 Satyanarayana,,G. Budi, Phalguni Sen, A.K. Sinha,2017 Stability Evaluation of Highwall Slope in an Opencast Coal Mine-A Case Study AMSE JOURNALS-AMSE IIETA publication Vol. 78; N°3; pp 253-273. ...
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ASSESSMENT OF SLOPE STABILITY IN OPENCAST COAL
2019.10.2 These slope failure accidents in Indian mines have taken place due lack of sound design of slopes and lack of monitoring. So, the coal industry has identified slope design, monitoring and stabilization as one of the thrust areas. Table 1 Accidents due to highwall failure in Indian opencast coal mines (DGMS report, 2016) Year State Name of
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(PDF) Q-slope application to coal mine stability - ResearchGate
2021.8.1 Q-slope and slope angles for over 500 cases studies including coal mine slopes. Mechanics and Rock Engineering, from Theory to Practice IOP Conf. Series: Earth and Environmental Science 833 (2021 ...
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Design Considerations for Waste Dumps in Indian Opencast Coal Mines
2020.1.3 Practical Applications: The performance of a double-benched coal mine overburden (OB) dump slope under earthquake excitations with a wide range of strong ground motion parameters (such as peak ...
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Analysis of Accidents Due to Slope Failure in Indian Opencast Coal Mines
2019.7.25 The opencast method is a dominant method and accounts for more than 90% of the total coal produced in India. In opencast mining, overburden (waste rock) is removed to access the coal seam (Dash ...
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Slope stability of deep surface coal mines in the presence of
2021.8.1 Geomechanical challenges, particularly slope stability, related to surface coal and lignite mines are critical during operation and determine the post-coal era. Several failure incidents have been ...
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Evolution of soil quality on a subsidence slope in a coal mining
Coal mining subsidence (CMS) can severely damage soil quality. The relationships among the variables influencing soil quality are complex and variable in time and space. This study characterized the changes of, and interrelationships among, soil quality variables in the 0–60-cm soil layer on a CMS slope applied complex network theory to reveal the
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A study on 2000+ slope failures in open pit mines detected
2022.10.20 Abstract. For the last 20 years mine slopes have been monitored with slope stability radars. Since 2015 a group. of dedica ted geotechni cal engi neers dedicated to remotely monitor radars around ...
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Methods applied in Australian industry to evaluate coal mine slope ...
2020.3.1 Slope stability analyses can be undertaken using empirical, kinematic, limit equilibrium (2D or 3D) or numerical (2D or 3D) modelling techniques. A survey of 43 geotechnical engineers in 2016 indicated that kinematic and 2D limit equilibrium analyses are the most commonly applied methods to assess excavated coal mine slope stability.
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(PDF) An Overview of Slope Failure in Mining Operations
2022.6.2 This. paper presents an overview of several case studies of slope failure in mining operations and explains. various modes of failure in rock slopes, as well as factors that influence the ...
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Performance of Coal Mine Overburden Dump Slope Under
2023.10.27 The guidelines prepared for the coal mine OB dumps are entirely silent on the effect of earthquakes, therefore this study would be useful in framing of the guidelines considering the influence of earthquakes on the coal mine OB dump slopes. Keywords. Amplification ratio; Coal mine overburden dump slope; Extended finite element method;
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Pumped storage hydropower in an abandoned
2022.9.12 Many coal mines are being abandoned for economic and environmental reasons in China. The repurposing of abandoned open-pit coal mines into pumped storage hydropower (PSH) can help with the
MoreSteep End-Slope Mining and Slope Stability of Extremely
2022.3.24 2.2. Numerical Modelling. Firstly, Figure 3 shows the end-slope morphology at different stages of open-pit mining with extremely thick inclined coal seams. In Figure 3(a), L 1 and N 1 are the location of the working slope and the location of the inner dump before advancement, and L 2 and N 2 represent the location after advancement,
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(PDF) Evaluation of open pit mine slope stability analysis
2011.8.1 The purpose of GSI slope is to allow engineering geologists to quickly evaluate the stability of natural and excavated slopes or open-pit mining in the field. GSI slope is computed by subtracting ...
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A Critical Review of Stability Analysis and Design of Pit
2018.7.27 The Indian Opencast Coal Mining Industry has experienced the pit slope failures at Dorli OC- I of M/s SCCL, SRP OC-I of M/s SCCL, GK OCP of M/s SCCL, RKP OCP of M/s SCCL, KTK OC sector-I of M/s SCCL and Kawadi OCP of M/s WCL. So, The Indian Coal Mining Industry has identified stability analysis and design of pit slopes as
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Slope Design and Implementation in Open Pit Mines:
2012.1.1 Keywords: slope stability, slope design, engineering geology, fault, open pit mines, SOMAIR uranium mine, OCP phosphate mine 1. 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.
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Effect of vegetation recovery measures on rill erosion of
Abstract: As a large field accumulating salvaged material formed in the opencast working process of coal mining, dump is characterized by unique structure and complex material composition, causing severe soil and water loss. Characteristics of soil erosion on the side slope of dump are significantly different from those on the protogenesis slope. A field
MoreA Classification System for the Slope Stability Assessment
2012.1.26 The developed system was named as “OPCASSTA-COAL” (Opencast Slope Stability Assessment System for Coal Mines). A broad flowchart of this system is depicted in Fig. 1. The system was applied to assess the RMC, the slope condition and the slope failure hazard in two coal mines of WVC and was found to be of practical application.
MoreSlope stability analysis at coal mining sites in Central
2023.5.1 E-mail: [email protected]. Abstract. Slope stability is an important factor in the planning and operation of open pits and. mines. Currently the co mpany has been mining up t o a height o ...
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DESIGN OF STABLE SLOPE FOR OPENCAST MINES
2009.5.18 Slope stability analysis forms an integral part of the opencast mining operations during the life cycle of the project. 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.
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A new approach for evaluation of slope stability in large
2022.2.2 The slope stability has already become one of the most important factors directly related to the safety production and development of a mine, which is principally controlled by the properties of geological discontinuities of slope, such as bedding planes, faults, cleavage and joints. In this study, a new approach for the evaluation of slope
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Slope stability of deep surface coal mines in the presence of
2021.6.11 Abstract Coal and lignite (brown coal) are geo-resources that govern energy production for decades. Geomechanical challenges, particularly slope stability, related to surface coal and lignite mines are critical during operation and determine the post-coal era. Several failure incidents have been reported in mining areas, typically
More(PDF) Landslide mechanism and stability of an open-pit slope
2022.6.6 the landslides at the Shengli open-pit coal mine (Zhang et al., 2010), Fuxin Haizh ou open-pit c oal mine (He et al., 2011), and the Fushun West o pen-pit c oal mine (Nie et al., 2017) are typical ...
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Stability Analysis of an Open Cut Slope in Wardha Valley
2017.8.23 Open cast mining has developed into a high prominence industry due to exponential rise in the demand for coal. Open cast coal mining’s production share is more than that of the underground coal mining (Fig.1) and seeing the recent trends, it will continue to rise in the future too. This pressure on open cast mines to enhance the production ...
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Landslide mechanism and stability of an open-pit slope: The
2023.1.13 A clear understanding of landslide mechanisms and stability analyses is of great significance for landslide monitoring, prediction, and control. A large-scale end wall landslide occurred and its area reached 47,752 m2 on August 7–20, 2020, in the Manglai open-pit coal mine, China. In this paper, the engineering geological survey, mechanical
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Evaluation of Slope Stability within the Influence of Mining
2022.10.27 For the past few decades, coal resources have been the main source of primary energy consumption in China (Li et al., 2022).The area of surface subsidence caused by underground mining is as high as 1.5 × 10 6 hm 2 and still increasing at a rate of 7.0 × 10 4 hm 2 / a (Xiao et al., 2017).At the same time, a series of surface collapse and
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Stability Analysis of Overburden Dump Slope—A Case Study
2023.2.15 Abstract. Open cast mining produces huge amount of overburden dump material and it is stored in the form of external overburden dump in pit dumping. Present investigation deals with stability analysis of overburden dump slope at Marki Mangli-I open cast coal mine. The stripping ratio of the Marki Mangli-I coal mine is 6.75 which is very
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Stability Analysis and Optimal Design of Ultimate Slope
2022.4.1 Abstract and Figures. To avoid over-tailing and limit the risk of failure in open-pit mines, choosing an ideal and stable slope is critical. The major goal of this study was to provide a stable ...
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