... Abstract Underground excavations for the development of infrastructure, mining operations, waste management etc. require support measures to ensure stability both during their construction and operational phases, which highly depends on the rock mass strength and deformability. Discontinuities...

... geological subdiscipline environmental science 833 canada government rock engineering vector united states government machine learning reservoir characterization topology hudson discontinuity aperture procedure visualization sammon mapping practice iop publishing iop conf mapping theory...

... Abstract Rock mass characterization plays an essential role in rock engineering activities. Presently several approaches for digitally measuring rock mass discontinuities are available. This study summarizes some of the main technological approaches, together with comparative quantitative...

... Abstract The basic friction angle is a basic parameter used in the shear strength estimation of discontinuities. The accurate determination of the shear strength of the discontinuities is of great importance for engineering structures built on or inside the rock. In this study; the variation...

... of OPTV surveys, the fractures present in the rocky mass can be recognized via means of sinusoidal curves readable on the image. From the abovementioned curves, it is then possible to assume the inclination, immersion, and thickness of the discontinuities. Furthermore, from the virtual core...

... characteristics of discontinuities. Although the use of UAV data in rock slope analyses have been discussed by many authors [3, 4, 5, 6, 7]; however, their use as tool for incorporation in empirical rock mass classification methods, such as the Geological Strength Index (GSI) [8] and Q-slope [9], has not been...

... Abstract The scale effect is known to hinder reliable shear strength estimation of large-scale discontinuities. Recently, a stochastic approach was proposed to predict shear strength of large discontinuities directly at problem scale, thereby bypassing the scale effect. One aspect...

... for in this study. The structural classification is based on discontinuity and fault characteristics gained from field work. The study area is considered an analogue for Germanys most productive deep geothermal reservoir horizon in the South German Molasse Basin. The aim of the field study is to describe...

... engineering landslide hazard infrastructure rockfall hazard geological subdiscipline environmental science 833 theory assessment railway corridor smca discontinuity Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series: Earth and Environmental Science 833 (2021...

... Abstract The basic friction angle of rock joints is usually obtained from tilt tests, being the most common the laboratory tilt tests. This test has been standardized according to the ISRM. However, most of the times when calculating the shear strength of discontinuities, reference tables...

... and slip propagation along discontinuities. Simulated displacement and the development of a deep region of shear strain localization, allow to highlight the significance of temperature influence in preparing the rock slope to instability. Introduction Large rockslide events and deep-seated...

... Abstract Characterisation of a rock mass requires data from the intact rock along with the discontinuities. Assuming that the discontinuities are planar, its characterisation requires its number and orientation. This leads to the analysis of the normal spacing, the persistence...

... complex reservoir reservoir geomechanics austria government europe government geological subdiscipline practice iop publishing iop conf discontinuity orientation rock engineering extract fracture environmental science 833 theory procedure hydraulic fracturing reservoir characterization...

... Abstract Discontinuities are an intrinsic characteristic of rock masses, and they appear at every scale of a technical survey. Issues related to the procedure’s duration and the operator’s safety during the survey have encouraged the development of non-contact methods: images and digital...

... Abstract Many methods for calculating the volume of rock blocks have been developed in the last decades. The first attempts to estimate such crucial quantity produced analytical equations to calculate the mean and variance of volume, considering blocks created by three discontinuity sets...

... no damaging subsidence. Sinkholes, however, may still develop by structurally controlled failure. Main contributing factors are the geometry of an underground opening. Geological factors include the resource type (orebody or seam), height of rock overburden and cohesive soil, water flow and discontinuity...

... by different discontinuity sets, was studied by using the Shear Strength Reduction (SSR) method. Different values of joint spacing, cohesion and friction angles were considered, combined with two angles of the slope face under study. The joint spacing has been found to relevantly affect the values...

... discontinuity persistent discontinuity Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series: Earth and Environmental Science 833 (2021) 012043 doi:10.1088/1755-1315/833/1/012043 Q-slope application to coal mine stability N Bar and A McQuillan Gecko Geotechnics, Australia...

... igneous origin Granite/Granodiorite rock present in a moderately to highly weathered state and consist of two sets of discontinuities; one running almost parallel to slope faces and another nearly orthogonal to the major set of discontinuities. Based on the orientation of the discontinuities along...

... mechanics research, remote sensing technologies are mainly used for mapping surface geometry and rock discontinuities. However, the characterization of intact rock’s mechanical properties via remote sensing is a technique that has not yet been developed. In this study, spectral information is implemented...