... under the impact of intensive goaf gas drainage. Besides, the associated gas explosion risks will be quantified using Coward's triangle based on the CFD modelling simulation results. Therefore, this CFD model can be used to optimise the drainage efficiency of intensive boreholes while ensuring mining...

... geometries with the use of the software GEM4D. This methodology analyses the excavation in four categories: volume; slope face dip; berm width; and drainage. With the use of it, the identification of possibly problematic areas has been improved, allowing preventive actions. 1 Introduction In any open pit...

... of Earth Resources Engineering, Faculty of Engineering, Kyushu University, Fukuoka, Japan R.S. Gautama & B. Sulistianto Department of Mining Engineering, Institute Technology Bandung, Bandung, Indonesia ABSTRACT: Water plays an important roles in acid mine drainage, both as reactant as well as contaminant...

... the design, construction and operation of a LNG pilot plant in Daejeon, Korea. Among the key technologies of the LNG storage sys- tem, drainage of groundwater and formation of an ice-ring are very important ones. These are strongly related to the complex mechanism between thermal and hydraulic...

... & Gas drainage information quarry operation subsidence erosion construction mining 9. Keynote lectures 11th Congress of the International Society for Rock Mechanics Ribeiro e Sousa, Olalla & Grossmann (eds) © 2007 Taylor & Francis Group, London, ISBN 978-0-415-45084-3 Environmental...

... solid waste management Upstream Oil & Gas pyrite oxidation drainage metals & mining problematic aspect Basque Country construction oxidation potential purbeck-weald formation acid generation Spain reaction Sulfur regulation pyrite acid drainage acid discharge acid...

... road in central Switzerland, have revealed up to 12 cm of subsidence along sections that pass several hundred metres above the Gotthard highway tunnel. Large-scale consolidation resulting from tunnel drainage and pore pressure changes in the rock mass are believed to be the contributing mechanism...

.... It includes toe ditches, nets, bolts, anchors, shotcrete and drainage. SOMMAIRE La classification SMR ("Slope mass rating") a ete presente par ROMANA (1985) comm' un developement logique de la classification geomecanique, de BIENIAWSKI (RMR). RMR (frequenment utilise pour les tunnels) ne peut pas être...

... high, roughly half, of which are embankment dams (earth and/or rockfill), the other half being concrete dams. The proportion of concrete dams increases with the height of the dams considered, as does the proportion of arch dams among the concrete dams. Upstream Oil & Gas drainage...

..., a further slope cut in extremely weathered yellowish brown Dwyka Tillite; containing boulders of hard blue unweathered tillite up to 7 m in diameter; failed during road construction in the township of Ntuzuma, north of Durban. structural geology drainage civil engineering investigation tension...

... strength drainage Upstream Oil & Gas Piezometer Simulation batter slope safety factor Hoek probability Kawerong Quartz Diorite diorite pit slope design method Island Panguna Andesite ~, PIT SLOPE DESIGN IIETHODS: BOUGAINVILLE COPPER LIMITED OPEN CUT Methode d'etude de talus de puits...

... methods have shown the best results. drainage berm conclusion circumstance Reservoir Characterization Rock Embankment upkeep construction deposit consolidation stability requirement gradient embankment traffic route dipl cross section PROBLEMS IN DESIGNING AND SECURING ROCK...

... pressure measurements. A successful method of alleviating outbursts at the two collieries involved drainage of gas from the solid coal and from shear zones. RESUME: Cette communication presente les resultats de recherches sur les frequents degagements instantanes charbon australiennes. Les recherches...

... Summary Galleries located behind and running parallel to rock slopes are used as permanent drainage measures for the stabilisation of rock slopes. The additional construction cost of galleries compared with simpler measures, such as drainage holes drilled from the surface, is often justified...

... The PDF file of this paper is in French. - Résumé On sait l’importance capitale que le drainage peut avoir pour assurer la stabilité d’un massif rocheux, en particulier l’appui d’un barrage. L’aspect théorique du problème est classiquement abordé en supposant que l’eau circule dans des...

... des systèmes adoptés — drainages ou nivellement de talus instables, boulons d’ancrage le long des talus et injections de mélange eauciment pour les fondations en roche — on décrit également certains critères de calcul pour le dimensionnement des travaux d’amélioration. 1 — Généralites Les...

... Upstream Oil & Gas friction Colorado School excavation ground water deformation drainage cohesion foundation wall shear stress strata safety foundation 6.15 Analysis of foundations in sliding zones Analyse des fondations dans des zones glissantes Analyse von Fundamenten in gleitenden...