... or foundation. But re-assessing the current safety of an existing dam is many times more difficult than ensuring that a dam-to-be-built satisfies all safety criteria. In sliding stability re-assessment of concrete dams, sliding along potential weakness planes in the rock foundation is an important failure mode...

... as a function of their hydraulic conductivity, mechanical properties and geometry is necessary for evaluation of the stability of the fractured rock mass. The stability and tightness of a hydrocarbon storage cavern in a fractured rock mass have been modelled using DISROC ® finite element code developed...

... and solutions (TBM, Mechanical and D&B) in sedimentary rocks. reservoir characterization upstream oil & gas support design structural geology rockmass metals & mining strength weakness plane rock strength reservoir geomechanics rock mechanics bedding sandstone stability tunnel...

... it can be somehow limited extraction using longwall face. This method is respectful of the overburden and excavated areas stay stable. The paper deals with the issue of stability and stabilization of coal pillars by using rockbolt support. The problem with this method is currently designing pillars so...

... that an increase in stope height from 30 to 45 m do not adversely affect the stability of stope, cross-cuts and haulage roadway at this mine. 1. Introduction In the case of manganese mine reported in this paper, haulage roadways and cross-cut drifts serve a crucial purpose of transporting blasted ore from...

... wide and 50–250 m deep and filled with Neogene and Quaternary sediments. The design of the open-pit mine required geotechnical analysis to reveal possible problems that may occur during its construction and operation. The author of this paper had opportunity to perform slope stability studies...

.... Ensuring the stability of the well is very difficult under such conditions. The proper determination of the state of stress, strain and displacement of the rock mass around the hole is critical in the design of directional holes. Numerical analysis tools which take into account the structure of the rock...

... of the spacing, length, longitudinal overlapping and installation sequence of the bolts. An investigation is made into the influence of water table height on the stability of a reinforced face. In particular, we show that, if the gradient of the hydraulic head is high, then tensile failure of the ground ahead...

... criterion Salamon post-peak stiffness pillar strata stiffness procedia engineering 191 uncontrolled pillar failure stability loading system mechanics Reservoir Characterization strength mechanism post-peak behavior Department of the Interior stiffness Procedia Engineering 191 ( 2017 ) 631...

... mining and geological conditions. The measurement results showed that the most informative parameter for pillar stability estimation is its transversal strain. A new system based on a magnetostrictive sensor, recorder and transmitter to realize continuous remote monitoring of pillars deformation...

... was conducted across the range of excavation steps undertaken within the underground mining operation. This full-stage analysis provides predictive information on stability of the open pit in terms of rock/slope failure. The output provides benefits in safety and production and gives operators and regulators...

... of İscehisar marble quarry is at 1020 m and it is planned to be excavated down to 980 m elevation. The aim of this study is to determine the stability deep slopes at maximum depth (> 90 m) using numerical modelling. In the finite element method, generalized Hoek-Brown and Mohr-Coulomb failure criteria...

... Abstract We examine the stability of an ancient slope located at Jietai Temple in western Beijing of China, by using the remote monitoring system of sliding force combined with the combined finite-discrete element method (FDEM) as well as the field surveys. Potential pre-existing joints...

... values of PPV W , absolute values of the reduced stresses ranged from 250 to 450 MPa. They were below permissible stress for steel arch support, amounting to σ max = 623 MPa. The vibrations registered for seismic events at Bobrek field site were safe to maintain the stability of the excavations...

...-supporting. Although, during reaming operation over-break could be occurred and lead to instability of shaft. In addition, there may be some concern about wedge type block failures from the excavation walls. Due to these concerns the stability of raise bored shaft should be analyzed to minimize the risk...

... tonnes has little effect on the stability of the hanging wall beam and therefore a tensioned load between 5 and 10 tonnes will be sufficient in shallow platinum operations. This results in modification of conventional support installation to a more modern, fully mechanised installation. The results...

... arise as questions. Reservoir Characterization structural geology sepulveda Upstream Oil & Gas frequency Chile Santiago stability Earthquake dynamic numerical analysis central chile mechanical property rock slide Universidad boundary condition geometry landslide deposit...

... ABSTRACT: This paper presents part of the slope stability improvement program carried out at Kışladağ Gold Mine in Turkey. A slope stability project was initiated at the site recently to review the minor slope failures as well as the geotechnical and final wall design aspects in detail. Two...

... ABSTRACT: The goal of this study is to improve the analysis of the stability of pillars and to answer the question of the choice of the pillar strength using an empirical approach. The pillar strength depends mainly on two factors: the uniaxial compression strength and the pillar geometry. We...

... ABSTRACT: The paper deals with a numerical modelling applied for the evaluation of the static and dynamic stability of a limited rock shore strip located in Peschici, a small city along the Gargano promontory (Southern Italy), very important by a tourist and historical points of view. Thus...