Collapse shape of tunnel floor in Hoek-Brown rock media is investigated with the functional catastrophe theory. The stability of rock system in tunnel floor, which is determined by thickness, half collapse width, half length of cave and detaching curve, has great secure and economic significance in practical engineering. To investigate the …

M. Eurocode 7 and rock engineering. Chapter. May 2014. J Harrison. View. The present paper summarizes the work done on developing and validating the use of a hybrid Finite - Discrete Element ...

A soil–rock slope is a heterogeneous slope composed of soil and rocks that is widely distributed throughout the world. In order to accurately analyze the slope stability of soil–rock mixture, based on a Monte Carlo algorithm (fuzzy-based method), a symmetrical stability analyzing method for soil–rock slopes is proposed, considering the …

In this section, a rock slope is simulated using DICE2D ( Figure 4.8 ). The dimension of the slope is approximately 700 m × 400 m (the details are displayed in Figure 4.8 ). The slope comprises three parts: the base rock, the weak layer and the top slope block. A total of 9,129 particles are present in the model.

The role of a bentonitic layer on slope stability in bedded limestone: case study of the December 2004 Ca' Madonna Quarry rock slide (Umbria-Marche Apennines, Central Italy) ... where limestones ...

Figure 9 shows the stability calculation results and indicates that the safety factor of the 9–9′ artificial slope is 1.92, ... The survey showed that, in the top seam position of the artificial slope and the rock palisade, the subsidence was approximately 30–100 cm. Four subsidence monitoring points were arranged in the second slope, 0.5 ...

Rock mass classification systems, such as rock mass rating (RMR) and slope mass rating (SMR), were used to assess rock mass quality and slope stability, respectively. The weighting scheme approach is then applied and the ratings assigned to each factor (RMR, SMR, reserve, depth to water table, and overburden thickness) …

SLOPE STABILITY 1. Purpose. This engineer manual (EM) provides guidance for analyzing the static stability of slopes of earth and rock-fill dams, slopes of other types of embankments, excavated slopes, and natural slopes in soil and soft rock. Methods for analysis of slope stability are described and are illustrated by examples in the appendixes.

Combining the test results with data for a rock slope project at an open pit of a gold mine in Heilongjiang Province allowed us to simulate and calculate the stability of the slope before and after freeze–thaw cycling with the FEM software MIDAS/GTS (MIDAS Information Technology Co., Ltd. 2007). This paper thus explores the influence of the ...

This study presents the approach of using anisotropic material model utilising basic rock testing and field observation data to …

The properties of the joint sets used in the calculation of the condition factor (TC) are shown in Table 4. ... The excavatability of the limestones was also assessed in association with the slope stability analyses. The geotechnical parameters (discontinuity properties, UCS, friction angle, etc.) used in the assessment of the stability and ...

PDF | On Jun 6, 2016, V Kalpakci and others published Investigation of rock slope stability for an abandoned limestone quarry in Konya (Turkey) | Find, read and cite all the research you need on ...

rock slope stability assessment of limestone hills, southern kinta VALLEY, IPOH, PERAK, MALAYSIA Goh Thian Lai 1*, Ainul Mardhiyah Mohd Razib 1, Nur Amanina Mazlan 1, Abdul Ghani Rafek 2 ...

The objectives of this study are to elucidate the contributions of water-rock interaction to slope stability in a limestone quarry, to classify groundwater samples and their sources, and finally, to estimate possible mixing of groundwaters between rock layers and predict possible sensitive zones affecting rock slopes by using geochemical models ...

In this article, we have used a GIS-based modified technique to assess the efficiency of kinematic analysis in predicting shallow landslides in the rock slopes of the …

In this paper a numerical analysis of slope stability problems in blocky rock is presented with emphasis given to the various possible failure modes (block sliding and/or block tilting). The ...

Abstract. Rock failure criteria are key input parameters for models designed to better understand the stability of volcanic rock masses. Cohesion and friction angle are the two defining material ...

Rockfall analysis is a multiparametric procedure with many uncertainties and the outputs are largely dependent on some critical engineering geological parameters involved in the used simulation model. In this paper, three completely different limestone rock sequences, named Pantokratoras, Vigla, and Paxos limestones along the western …

Metrics Abstract In this study, numerical simulations were carried out to analyze the influence of caves in different positions and shapes, in combination with …

geological studies and rock slope stability ana lysis can be done in different ways. 2- Methodology For this purpose, in the first step with karst geomorphological studies ( such as dissolution ...

Limestones; 8 (n1-3): Neocomian ... A slope stability calculation should never be treated as an end in itself but rat ... This study aims to assess the slope stability of hard rock masses against ...

Rock Slope Stability. In this example, a rock slope stability problem is solved using DICE2D. From: High Performance Computing and the Discrete Element Model, 2015. …

Large (deep-seated) landslides present complex geometries, rock/soil properties, and kinematical behavior. Complex geometries are due to the presence of several sliding zones, while complex properties typically result from the dilation, compression, or fatigue of geologic materials. Kinematical behavior is often episodic, with …

The limestones in the area are gently SE-dipping and readily daylight out of the slope faces ... The range of geotechnical and geometric parameters used in the slope stability calculations is summarized in Table 3. ... Hoek E, Bray JW (1981) Rock slope engineering, 3rd edn. Institute of Mining and Metallurgy, London.

Bedding slope is one of the most common forms of landslides, and determining the shear strength parameters of the sliding surface is essential for the slope stability analysis and engineering design. Due to the different values of shear strength parameters of different sliding surfaces and the existence of the interlayer shear effect during sliding, it …

Rock-slope stability conditions can be divided into three broad categories based on the factor controlling them: rock structures, intact rock strength and rock …

As mentioned, the first aspect of rock slope stability is linked to the presence of a steep slope, which is the primary factor influencing rockfall initiation. Another important aspect of rock slope hazards is to quantify volumes and to characterize their geometry, which is important for frequency estimation and/or instability mechanism ...

The design of the ultimate slope is based on a stability analysis. This study identified the possible failure modes (planar, wedge, toppling, circular) using a kinematic approach (Hoek and Bray 1981; Hoek and Brawn 1988), and the safety factor was calculated using the stability calculation software "SLIDE" based on the limit equilibrium method.

The rock slope formation is calculated for the factor of safety (FoS) using the 2D limit equilibrium method (LEM) by employing an anisotropic geomaterial with a directional strength model.