... Abstract The Q-slope method for rock slope engineering was developed to allow engineering geologists and rock engineers to rapidly assess the stability of excavated rock slopes in the field, and make optimal adjustments to slope angles as rock mass conditions become apparent during...

... behavior. In the last decade several efforts were made to reconcile or validate slope designs and models with excavation progression with varying degrees of success (Baczynski et al. 2008; Dixon et al. 2011; Bar, 2012). At the same time, slope stability modelling techniques have evolved and increased...

... of rock mass in front of piles under lateral stress are analyzed. Based on the theory of elastic-plastic mechanics, the stress formula of pile side reaction during large excavation before piles is deduced. The minimum anti-slide width required for rock mass in front of anti-slide piles to maintain...

... and the minimum horizontal stress is 15MPa. reservoir geomechanics strength stability coal mining metals & mining numerical simulation safety pittsburgh seam morgantown excavation upstream oil & gas reservoir characterization numerical investigation shear strength interface shale...

... Abstract Characterization of the rocky massif is the basis for dimensioning of parameters for excavations in open pit and underground mines. Therefore, it is essential to have a reliable knowledge of the spatial distribution of the geotechnical data to characterize accurately the rocky massif...

... construction rainfall infiltration spatial variability hydraulic boundary excavation rainfall infiltration coefficient intersect calculation tunnel construction groundwater stochastic modeling Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza...

... Abstract The first Underground Research Laboratory (URL) of geological disposal of highlevel radioactive waste (HLW) in China will be constructed in coming years and the TBM method is proposed for URL excavation. This paper aims to perform TBM performance prediction for URL project by using...

.... hydraulic fracturing reservoir characterization confinement excavation upstream oil & gas reservoir geomechanics geometric dilation strength rock mech diederich wellbore design metals & mining pillar criteria limitation fracture underground excavation criterion figure 5...

... Abstract Although rounded excavation shapes are widely utilized due to their preferable stress redistribution characteristics, in horizontally laminated ground (e.g. sedimentary environments) it is often preferable to utilize an excavation shape with a flat roof. In this study, the Discrete...

... Abstract The deformation and failure of surrounding rock caused by the excavation of subway tunnel and underground engineering is a dynamic spatio-temporal mechanical process of stress redistribution. Only by grasping the mechanical origin of damage can the effective measures be taken...

... thickness compressive strength unal m-rmr stability determination reservoir characterization excavation scenario equation table 3 Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4 Estimation...

... of the jointed rock masses are important for the design and performance prediction of structures built in and on rock masses. cavity cavern backfill classification upstream oil & gas himalaya dimensional numerical figure 8 reservoir characterization young excavation reservoir geomechanics...

... Abstract The application of grain-based distinct element modelling technique is investigated, with the aim of improving prediction of the extent and nature of the excavation induced damage zone (EDZ), a critical part of the design process and safety assessment for deep geological repositories...

... quality, sources of natural vibration such as seismic ground motions or fault activity or mining blasts. reservoir geomechanics rockburst copper mining criterion excavation international symposium upstream oil & gas metals & mining santiago strainburst estimation ppv chile...

... and tunnels (Cai 2013, Chen et al. 1997, Dou et al. 2017, Mark 2016, Whyatt et al. 2002, Zhang et al. 2017a, Zhang et al. 2013). In a rock burst, broken material is ejected into the excavation and can cause risk to underground workforce. This operational hazard is also named coal burst in underground coal...

... problem of a gallery excavation. The method initially only considered an elastic behavior for the ground but in the following decades, different authors have introduced in this method more complex phenomenon's such as plasticity in the ground, strain softening (Alejano 2010) or fictitious support pressure...

... Abstract The assessment of rock mass damage in underground mining environment is vital in stope design since it can assist in determining the extent of the excavation-damaged zone, minimizing stope dilution and also improve ground support measures. Hence, the aim of this paper is to assess...

... stress should be taken into consideration for proper assessment in underground excavations. 1 Introduction As the deep tunneling and underground space creation is rapidly growing, blasting as an inexpensive method is widely used in underground engineering. Unlike the surface rock, underground rocks...

... can provide an important theoretical reference for the stability analysis of engineering rock mass during blasting excavation. 1 Introduction Recently, there has been considerable interest in the development of underground rock mass engineering, such as tunnel, mine engineering, etc ( Song et al...

... face approaches, it is also found that the inclination observed with a few rounds of excavation has difficulty in prediction. 1 Introduction It is generally impossible for a conventional tunnelling in mountain area to comprehend geological and geotechnical conditions in advance for the entire...