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The current study proposes a comprehensive approach that combines several well-established methods to conduct a stability evaluation and failure process analysis of a fractured rock slope in Tianjin city, China. First, 100 DFN models are generated on the basis of …
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We have been asked to determine the stability of the rock faces of an existing limestone / dolomite quarry. The owner is proposing a residential development inside of the …
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Two numerical methods such as DEM and FDM were adopted to analysis of rock slope stability, of which dimensions are about 150m (length), 58m (height), 70 deg. dip, in Halla limestone mine. For this rock slope stability analysis, strength reduction method was used to calculate the safety factor of slope through numerical method.
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National Institute of Rock Mechanics Bengaluru Abstract and Figures This paper highlights the slope stability analysis of a limestone mine …
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This paper presents the results of slope stability assessment by using kinematic analysis to investigate the possible failure modes of 7 slopes in Gua Naga Mas (GNM1, GNM2 and GNM3), Gua Kandu (GK1, GK2 and GK3) and Gua Tempurung (GT) located in the southern part of the Kinta Valley, Ipoh, Perak.
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figure 1 mass in inclined plane to state that a slope is stable or not, can be expressed in factor of safety (fs) which is defined as follows: 𝑅𝑒𝑠𝑖𝑠𝑡𝑖𝑛𝑔 𝑓𝑜𝑟𝑐𝑒 𝐹𝑆 = 𝐷𝑟𝑖𝑣𝑖𝑛𝑔 𝑓𝑜𝑟𝑐𝑒 info: fs > 1.0 = stable fs = 1.0 = critical fs < 1.0 = unstable there are several factors that influence the stability of a slope, that …
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A performance comparison of four supervised learning methods for slope stability prediction revealed that both GSA and RF models can achieve satisfactory results, and the GSA model can obtain the best results when compared with the other three learning methods. 36 PDF View 1 excerpt, cites methods
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the stability of 286 engineered rock slopes, which varied from 5 to 45 m in height. The excavations were performed by varying means, such as manual, explosives or excavators. The lithologic units were highly varied and ranged from gypsiferous shales to limestones, sandstones and granodiorites. The SSPC system considers both
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The aim of this study is to investigate slope stability problems for heavily jointed karstic limestones in an aggregate quarry. Limestone …
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Key words: Limestone, slope stability, Rock slope stability assessment of limestone quarry; an example from İstanbul Cebeci Region, Turkey. Uploaded by Rock Slope Stability Analysis Scribd Read Unlimited Books.
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Fig. 11.2 Culmann Aproach to Slope Stability 11.3 CULMANN METHOD A technique for the calculation of slope stability based upon the assumption of a plane surface of failure through the toe of the slope has been proposed by Culmann (see Taylor, 1948). In Fig. 11.2 the line QS represents a plane potential failure surface. The forces acting on the
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A slope stability calculation method for highwall mining with time-dependent behavior is proposed, which provides meaningful insight for Chinese highwall mining technology. Engineering background...
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From the results of the slope stability assessment, it was determined that planar failure and wedge failure were the main failure modes. The GNM1 slope of Gua Naga Mas consist of four wedge failures and a planar failure with dip directions/dip angles of 005⁰/54⁰, 354⁰/59⁰, 124⁰/52⁰, 360⁰/50⁰ and 063⁰/70⁰ respectively.
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Stability increases when groundwater is prevented from rising in the landslide mass by (1) covering the landslide with an impermeable membrane, (2) directing surface water away from the landslide, (3) draining ground water away from the landslide, and (4) minimizing surface irrigation. Some examples of rock slope stabilization method:
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• Rock Slope Stabilization and Rockfall Mitigation Techniques • Rock Slope Rating System and Rockfall Database 15.2.1 Rock Slope Design ... Devonian limestones, and dolomites. 2V on 1H slopes and 3V on 2H slopes are used for sandstones of the Southern Tier and the Catskills. Most rock cuts in the lower Hudson Valley are
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(2) there is a sliding trend in both sides during excavation, and the maximum vertical displacement is 2.1 cm. (3) if the slope is reinforced according to the design scheme, the slope stability safety factor will be increased from 1.062 to 1.203 in a stable state, which greatly improves the stability of the slope and provides a guarantee for …
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The aim of this study is to evaluate the stability and excavatability of newly stripped rock slopes (slope 1 (SN–1), slope 2 (SN–2), and slope 3 (SN–3)) in a limestone quarry. These are new pro duction sites with comparable geological …
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In the evaluation of rock slope stability, there are many kinds of uncertainties including the input parameters uncertainty, the calculations uncertainty, and the procedure. …
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Mine rock slope stability rating is the process of assessing its stability probability, analyzing its failure mode, and then determining its stability rating by location matching principle and scale matching principle, having important theoretical and practical significance in putting forward reasonable restoration suggestions. In recent years, rapidly developing artificial …
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The criterion for stability and failure of foundation pit slope has the following points in the analysis of soil slopes: first, the model calculation does not converge 29, 30; second,...
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Generally, instability of hard rock slopes is mainly controlled by the presence of the structural geology and rock mass discontinuities through the slope faces of the open pit …
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Lecture 12: Slope Stability . Key Questions. 1. How do "friction" and "cohesion" work together to stabilize slopes? 2. What is trying to "pull" slope material down? 3. How does the slope angle play a role in slope stability? ... Broken rock = 0.5 to 0.9. Note: the Greek symbol μ (mu) is usually used for coefficient of friction.
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the structural fabric of the rock mass. For all but very weak rock materials, the analysis of rock slope stability is fundamentally a two-part process. The first step is to analyze the structural fabric of the site to determine if orientation of the discontinuities could result in instability of the slope under consideration.
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Rock Stability This program is used to analyze the stability of rock slopes and walls for a specified type of failure, including a planar or polygonal slip surface or rock wedge. Subscription Perpetual 360 € Annually Subscription benefits Buy Discounted packages: Analysis of rock stability Stereographic projection of rock wedge
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Slope stability is ultimately determined by two factors: the angle of the slope and the strength of the materials on it. In Figure 15.2 a block of rock situated on a rock slope is being pulled toward Earth's centre (vertically down) by gravity.
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Theory of Slope Stability; Friction, Overpressure and Fault Normal Compression; Archived: GEC #5 Soil and Rock Properties; Shear Strength of Clay and Silt Embankments; Effect of Characteristics of Ground Motion on Seismically Induced Sliding Surface of Slopes; Slope Stability; Chapter 10 Stability of Slopes; 8. Strength of Soils and Rocks
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Slope stability depends on the capability of the soil mass to withstand its gravitational forces, the additional loads acting on the slope, as well as potential dynamic loads (such as that of an earthquake). A common misconception is that landslides occur in steep and remote slopes and do not actually impact human infrastructure.
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By application of finite element method and applications with ANSYS software, the analysis on rock slope stability of the mine was carried on, which is based on the …
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On 20th September, 1973, a slope at the Kagemori limestone quarry (Figs 3, 5) collapsed with an extraor- dinarily loud noise caused by 300,000--400,000 m3 of failed rock …
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For slope stability, the exposed loose rock can be treated by the use of shotcrete and gunite. The shotcrete or gunite will act as reinforcing material and improve the strength of rock mass. 6. Drains should be provided to release the pressure created by pore water. Such drains may include galleries, pumping systems, deep gravity wells, etc.
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