... 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...

... 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...

... & 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...

... 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...

...) Developments in the design'and construction "of dams on,karstic or other unfavQurablefoundations ' j _ 4 Q 45(1976, Mexico City) Leakage investigations and drainage " Q 53(1982, Rio de Janeiro) Influence of geology and geotechnics on "the design of da_ '. 1751 Q 56(1985, Lausanne) monitoring Q 58 (1985...

... Sliding failure on wedge combinations of two intersecting fractures or stepped paths., ~- Sliding fail ure on single fractures or stepped paths with failure through the rock mass in the toe area. .' 4.3 ,Pit Slope Drainage. Estimating the normal effective stress range appropriate.to the failure surface...

... by backfilling with weathered tillite . The drains were connected to a subsoil type drain along the road shoulder which required blasting of the base til11te in order to ensure the fall. The area behind the crest was also levelled and provided with limited surface drainage. To date this arrangement has survived...

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

... 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...

... 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...

... slope movements to occur without dragging the wall. General excavation was made to reduce the exposed height of foundation wall, and the uphill side of the excavation was protected by a thin concrete slab fastened with shallow anchors to a relatively steep slope. Drainage was provided for the base...