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Keywords: stability
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Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-173
..., evolution of slope stability analysis method, source of uncertain data and Monte Carlo algorithm, and proposes the simulation method of layered slope uncertainty. Through the analysis of the joint structure of the flysch, we put forward two kinds of simulation methods: explicit joint and implicit joint and...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-002
... increase the clay minerals hydrate inhibitor. The wetting behavior has a great influence on the wellbore stability, the drilling fluid systems need to reduce the drilling fluid interfacial tension and enlarge the wetting angle between drilling fluid and rock medium. The crack geometric characteristics and...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-055
... analyze the ground stability rigorously, the numerical study begins with the simulation of goaf-side stress and the ground condition. Four global models with identical conditions except the width of the yield pillar are built and the effect of the pillar width on ground stability has been investigated...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-100
... key issues shall be addressed in accordance with Eurocode EC 7 (ӦNORM EN 1997–1): Design concept for determining excavation and support Determination of safety relevant parameters, including definition of expected behavior and criteria for the assessment of the system stability on the basis of...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-085
... Abstract Portal sections of road and motorway tunnels are usually the most demanding parts of tunnel construction because they are usually executed under inclined surface and, in most cases, in areas with poor rock quality. Currently, there is a limited number of investigation on the stability...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-178
... Abstract Aiming at fully considering the influence of bolt length on stability of flysch layered slope, safety factors and failure modes of layered slope with different dip angles of bedding plane and equal-length bolts were analyzed by finite element limit analysis code Optum G2. Then bolt...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-228
... characteristics, various tunnel collapses were systematically classified in this paper through the collection and analysis of the tunnel collapses. They can be classified as mountain tunnel collapses, urban tunnel collapses or submerged tunnel collapses; collapses caused by stability of surrounding rock or caused...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-105
.... Accordingly, we have developed a three-dimensional information and communication technology (3D-ICT) system that shows various measurement data in real time on a website and determines the overall ground stability using a newly developed evaluation technique. This report outlines the system, the gives...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-196
... fill (CRF). About 5% of ore is designed to be left in post-pillars. With side confinement offered by the CRF on to these post-pillars, they shall ensure safety and stability of the surface crown during stoping operations. In addition to these measures cable bolts of 10m length are also used for...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-157
... and gas storage, pump house and surge chamber for irrigation purpose etc. Stability of large underground caverns revolves around interaction of surrounding rock mass with the cavern and its support elements. There are two factors, fixed one such as geological setup, in-situ state of stress and...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-255
... Abstract We report experimental research on frictional strength and stability properties of shale fractures during slip. Longmaxi shale, Green River shale and Marcellus shale are selected for constant-velocity and velocity-stepping fracture shear experiments. Combing with theoretical analysis...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-216
... Analysis of Variance (ANOVA). This allowed a robust method of identifying the controlling factors governing rock slope stability. From this study, it was found that discontinuity orientation was the most important parameter. This followed by water, slope angle, Volumetric Joint Count (J v ), Joint...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-211
... erosion of the colluvial deposit. A GPS automatic monitoring system has been installed on the colluvial deposit to assess the validity of disaster recovery works aimed at stabilizing the deposit. The system is composed of three segments, namely, the measurement segment, the server segment and the user...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-226
... adverse observation conditions, i.e., steep slopes, the existence of trees and walls above/around the sensors, tropospheric delays, weather conditions, etc. In this research, the GPS displacement monitoring system developed by the authors is applied to assess the stability of an unstable steep slope...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-100
... Abstract The authors have been recently involved with the restoration of the various historical masonary structures as well as static and dynamic stability assessment of some natural monumental rock structures. Furthermore, dynamic limiting equilibrium methods (D-LEM) as well as numerical...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-099
... Abstract Following the 2011 Great East Japan Earthquake, it has become important to evaluate seismic stabilities of infrastructures in Japan as well as the structures utilizing underground spaces. Oya tuff,which is one of the famous building stone and is classified into pumice volcanic tuff...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-138
.... Since, the traditionally used fully concrete lined waterway system has proven to be costly solutions, innovative solutions are needed to reduce the fully concrete lined length of the pressure tunnels. However, the solutions applied must guarantee long-term stability and sustainability, cost...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-150
...-width ratio) of heat storages. A high-aspect-ratio storage design, however, may lead to structural instability of the storage because of its slender shape. Therefore, heat storage spaces should be designed to provide good thermal stratification but should also consider the stability of the storage. This...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-119
... Abstract Fault close to tunnel always plays an important role to the stability of surrounding rock mass and the safety of supporting system in underground excavation engineering, and presents diverse influencing features and severity under the condition of these initial stress distributions...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-161
... mechanics excavation boundary Sapporo reservoir geomechanics displacement result stability excavation metals & mining asian rock mechanics symposium arms8 stope stability error value Reservoir Characterization deformation hakim sulistianto smallest error value october 2014 axis 0 8th...

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