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2019122Cite this article WANG ShashaXIE XuebinXIAO Chongchun et al. Impact of Cyclic Wetting and Drying on Stability of Sandstone SlopeJ. Mining and
20191141.Extraction systems of remaining coal around endwall slope at open pit coal mines2017.10 2.
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This paper presents the slope stability analysis for the current as well as projected final geometry of waste dump Sandstone Open Pit Osielec. For the stability analysis six sections were selected. Then the final geometry of the waste dump was designed and the stability analysis was conducted.
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20161027The slope stability analysis of rocks is vital for designing safe slopes in openpit mines. A proper slope design not only leads to improvements in slope stability and safety but also reduces costs extends the life of mines and decreases the stripping ratio Bye and Bell 2001 Naghadehi et al. 2011.
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200764PREDICTION OF GROUNDWATER INFLOW AND HEIGHT OF THE SEEPAGE FACE IN A DEEP OPEN PIT MINE USING NUMERICAL FINITE ELEMENT MODEL AND ANALYTICAL SOLUTIONS Ahmad Aryafar1 Faramar Doulati Ardejani1 Raghu Singh2 and Behshad Jodeiri Shokri1 1Faculty of Mining and Geophysics Shahrood University of Technology Shahrood Iran
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In other words a quarry is a big manmade hole in the ground from where minerals or rock are taken out. Quarries are made when big deposits of commercially helpful minerals or rock are found close to the Earths surface. Quarrying is a type of mining and is also called as open pit mining or strip mining.
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Home position shear tests of slope rock point loading tests and indoor AMD simulation action tests in XingQiao concave slope had show shearing strength and coherence between body layers of quart sandstone decrease by 13.221.3 after attacked by
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20191030Openpit opencast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow. This form of mining differs from extractive methods that require tunnelling into the earth such as long wall mining. Openpit mines are used when deposits of commercially useful ore or
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Abstract. Acid mine drainageAMD is one of the main reasons of slope instability in chemical mines with high sulfide. The pH values of the solution inside the mining pit decrease with the increasing of distance from ore body and vary from 1.2 to 4.6 according to the results of the water environmental investigation and the composition test of the slope sandstone in Xinqiao Pyrite Mine.
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2017316open pit mines. A brief introduction into the site specific knowledge of a highwall of an open pit mine is given in Section 2 followed by a description of the structure of the highwall in Section 3. Section 4 describes the analysis of the stability of the highwall by using a generalised polyhedral modeller.
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Research of Safety Standard of Pit Slope This paper systematically studied the applications of discussed stochastic medium theory in selfweight stress mining ground conformation mining ground open pit slop city
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115 Risk Assessment of Open Pit Slope Design at PT Adaro Indonesia M.A. Aii et. al Where log Lx is the loglikelihood evaluated at the MLE and p is the number of estimated parameters in the model. Based on this approach
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Abstract The instability of highwall slopes exposed to thawing in openpit coal mines in permafrost regions is described. Remedial measures are proposed to prevent shallow as well as deep slope failures in these regions. It is shown that by introd
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This article uses the extenics and fuy hierarchy analysis methodon the slope stability analysis method of uncertainty is improved.At the same timeon the measured data report AnTaiBao openpit mine for practical engineeringusing the method of the north a risk evaluation is made on the stability of slope area.Through the engineering example of calculation shows thatin this paper the risk
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2016125Abstract The issues concerned with slope stability in the open cast mines have come to forefront in the mining operations due to increasing pit depth. The cut slope stability has the most prominent influence in the productivity and longevity of a mine collapse of which can lead enormous damages to man and machinery.
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2015831slope design parameters of the Mimbula pit 2 which is an important satellite pit of the Nchanga open pits. Attention has been drawn to the need to understand the failure mechanisms of slopes on this site and the need to determine acceptable risk of mining at the designed pit slopes.
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2019125In the process of openpit excavation and stacking of dump along the side wall the rock mass inside the composite slope undergoes complicated loading and unloading effect which are manifested as triaxial stress horiontal unloading axial loading. In this study a corresponding mechanical model of crack propagation in composite slope under loading and unloading effects was
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115 Risk Assessment of Open Pit Slope Design at PT Adaro Indonesia M.A. Aii et. al Where log Lx is the loglikelihood evaluated at the MLE and p is the number of estimated parameters in the model. Based on this approach
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1.2 Principles of rock slope engineering This section describes the primary issues that need to be considered in rock slope design for civil projects and open pit mines. The basic difference between these two types of project are that in civil engineering a high degree of reliability is required because
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2019125In the process of openpit excavation and stacking of dump along the side wall the rock mass inside the composite slope undergoes complicated loading and unloading effect which are manifested as triaxial stress horiontal unloading axial loading. In this study a corresponding mechanical model of crack propagation in composite slope under loading and unloading effects was
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2017316open pit mines. A brief introduction into the site specific knowledge of a highwall of an open pit mine is given in Section 2 followed by a description of the structure of the highwall in Section 3. Section 4 describes the analysis of the stability of the highwall by using a generalised polyhedral modeller.
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2017122obvious and it has a clear lag. 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 theory sustainment to stabiliation of mined slope under openpit and underground mining.
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In other words a quarry is a big manmade hole in the ground from where minerals or rock are taken out. Quarries are made when big deposits of commercially helpful minerals or rock are found close to the Earths surface. Quarrying is a type of mining and is also called as open pit mining or strip mining.
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Study of Slope Stability Open Pit Mining Algeria . 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
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2019122Cite this article WANG ShashaXIE XuebinXIAO Chongchun et al. Impact of Cyclic Wetting and Drying on Stability of Sandstone SlopeJ. Mining and
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Abstract As open pit coal mines venture to previously unchartered depths the importance of ensuring the geotechnical slope stability of high spoil piles becomes critical. However a reasonable understanding of material parameters under the high stresses involved is yet to be achieved. Of particular interest is the necessity and effectiveness of testing scalped specimens in the laboratory and
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Vol. 17 2012 Bund. Y 3720 In the present study a large openpit coalmine slope Figure 3 was studied to determine the effects of water and mining activity on slope stability.
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20171024open pit. The pit slopes are large with a total height from between 100 m to 350 m. The mines benches are 10 m in height and the berms have a width of 5 to 6 m. Although coal is extracted by openpit mining operations underground operations are also performed in the southern slope to mine some of the existing seams of coal.
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