...ANALYSIS OF ROCK SLOPES WITH UPPER BOUND METHOD AND DISCONTINUITY TOPOLOGY OPTIMIZATION TECHNIQUE *HUANG Qi-wu, JIA Cang-qin, and XIA Bai-ru School of Engineering and Technology, China University of Geosciences 29 Xueyuan Road, Haidian District Beijing, China (*Corresponding author: richardhuangqw...

... Abstract In this paper we present the results of a combined remote sensing - numerical modelling study to improve our understanding of groundwater seepage in open pit and natural rock slopes, and to investigate the interaction between groundwater, in-situ stress conditions and brittle fracture...

... influence the factor of safety and failure behaviour compared to a two-dimensional slice. A series of numerical analyses were performed to investigate the effect of curvature on jointed rock slope stability compared to an equivalent two-dimensional slope analysis. By using discrete element method models...

... Upstream Oil & Gas Simulation analytical solution Montreal fundamental issue Reservoir Characterization accuracy single joint mesh size dynamic response Engineering rock slope rock mass wave transmission 13th international congress rock mechanics isrm13 Huang China Itasca...

... Abstract It is paramount that the stability of rock slopes be correctly accounted for under diverse operating and environmental conditions. Owing to different sources of uncertainty entailed in such stability problems, conventional deterministic approach through the calculation of a factor...

... Upstream Oil & Gas cohesion Coalescence Montreal hydraulic fracturing 13th international congress discontinuity manifold method propagation mechanics NMM international journal progressive failure numerical manifold method fracture mechanics rock slope coplanar discontinuity...

... Abstract The optimal profile of a rock slope under given geometry constraint is investigated by means of the upper bound method of limit analysis. The optimal condition corresponds to maximizing stability factor. It is assumed that rock failure condition is suitably described by the Hoek-Brown...

... long subjected to all modes of slope instability such as rockfalls, manmade slope failures and debris flows in the absence of the remedial measures. The very precipitous 40 m-high rock slope-cut along the road has no benches, backed by a natural slope of almost 80 m height. Both types of slopes suffer...

...PERFORMANCE OF ROCK SLOPES DURING THE 2010/11 CANTERBURY EARTHQUAKES (NEW ZEALAND) *C. Massey GNS Science Lower Hutt, New Zealand (*[email protected]) L. Richards Rock Engineering Consultant Akaroa, New Zealand F. Della Pasqua, M. McSaveney, C. Holden, A. Kaiser and G. Archibald GNS Science Lower...

... ABSTRACT A GIS-based approach for regional assessment of seismic instability of rock slopes is developed. In the proposed approach, the rock slope landslides induced by an earthquake is assumed to occur in planar failure mode.A rigorous Newmark's analysis is integrated with a GIS to predict...

... are anisotropy, fissility and easiness for weathering, and they are considered as major causes for slope failures. Therefore, this case study aims to introduce failure modes of rock slopes composed of phyllite in Korea and its countermeasures. The location of the slopes for the case study belongs to the age...

... is proposed to be constructed. The natural slopes of both the abutments are inclined between 50°: –65°:. The rock slopes are composed of highly jointed rock mass and the joint spacing and orientation are varying at different locations. The analyses have been carried out for predicting the behaviour...

... ABSTRACT Numerical modeling of rock slopes is now used routinely in the civil and mining engineering sectors as well as in academic research of numerical applications available today. Kinked and secondary cracks in geo-materials are analyzed numerically by a hybridized indirect boundary...

... ABSTRACT The probability of failure of a rock slope is generally estimated by using the Limit Equilibrium Method (LEM) in conjunction with a reliability analysis. Although the LEM is relatively simple and time efficient, recent studies have indicated that using the LEM may overestimate...

... ABSTRACT Toppling failure is a common mode of rock slopes instabilities in layered rock strata. Flexural toppling is one specific type of toppling failure that occurs due to bending stresses. Although, pure flexural toppling failure is a rarity, but since 1968 till now, the results of many...

... ABSTRACT This paper examines a new method of evaluating the stability of a rock slope using a remotely positioned Laser Doppler Vibrometer (LDV).We conducted an experiment using physical models and performed a numerical analysis to evaluate the new method. The physical model included (1...

... ABSTRACT Seismic stability of rock slopes is numerically investigated using the numerical manifold method (NMM). Instability mechanisms of rock slopes under horizontal and vertical ground accelerations are revealed, respectively. A block resting on an inclined slope moves when the total...

... ABSTRACT The field experiment "VAL-STRESS3D", started in 2005 by INERIS, aims to characterize and study both in situ stress and continuous thermomechanical deformations within the "Rochers de Valabres" rock slope, a Pilot Site Laboratory (PSL) prone to rockfalls. Firstly, in situ stress...

... ABSTRACT The destruction of rock mass may be caused by improper excavation in rock engineering, and the main external factors affect the rock slope's stability may be groundwater and seepage. To analyze the relationship between unloading and permeability coefficient of the rock, the method...

... a relative hazard for the slopes, thus providing recommendations for remedial works. LIDAR application has enabled the acquisition of a very large number of measurement points in a short space of time. This measurement methodology has permitted the realisation of a 3D model of the rock slope (Digital Surface...