... Artificial Intelligence mudstone sandstone green schist Reservoir Characterization overburden tunnel support machine learning deformation rate correlation coefficient crown settlement overburden ratio Upstream Oil & Gas apparent coefficient lateral pressure rock type...

.... fragile rock ground condition overbreak closure Upstream Oil & Gas tunnel face sandstone schist Reservoir Characterization quartzite dia face collapse renewable energy limestone Himalaya tunnel rock mass shale geology gneiss phyllite lesser himalaya thrust CHALLENGES...

.... The most important of these include: high water inflows along faults and karst cavities, inflows of rock debris (e.g. sugar-grained dolomites) under high fluid pressures, strongly squeezing ground in schists and phyllites, stress-controlled instabilities (i.e. rock bur ting), and surficial disturbance...

... one being the nature ofbedrock that underlies the city. BASEMENT JCOMPL£X 10km , Figure 1: Geologic map ofthe Lusaka area. (After Nkhuwa 1996) THE NATURE OF BEDROCK UNDERLYING THE CITY Lusaka is underlain by a Paleo- to Meso-Proterozoic crystalline Basement Complex comprising quartzites and schists...

... of this unique tunneling project. Upstream Oil & Gas gotthard und schist tunnel exploration tunnel Aar massif base tunnel massif structural geology borehole inflow rate Fault Zone Reservoir Characterization Lötschberg vorerkundung und prognose der basistunnel sediment longitudinal...

... reverse scarp History flexural excavation metals & mining Tasmania centre pit schist western wall displacement discontinuity sequence North Pit slope angle Horizontal Drainhole savage river foliation shear Orebody ABSTRACT: The Savage River Iron Ore Mine, located...

..., and an indication of material state. Geology and Geometry The Granites derives its name from an impressive cluster of tors that rise abruptly to 20 m above the otherwise subdued landscape of desert sandplain [2]. The stratigraphic units from south to north are informally named the Footwall Schist, Host Unit...

... renewable energy shear zone rock bolt excavation diversion dam Power Tunnel gneiss chukha hydroelectric project cavern house cavern schist Crown slide zone tunnel Reservoir Characterization right side wall Face IV ßood New Delhi cavity ABSTRACT: The first two Pelton...

...) and a gentler bulged toe that strikingly protrudes to the ocean. schists, mainly black schist, and raB- ging in size from huge blocks, some of them being no less than a big house, to clay. All these materials are mixed together in irregular way. Geological drillings made in the investigation stage...

... of weathe- red granitic rocks is by a'1d IBrge argillaceous and thus impervious to semi-pervious in nature with k-val- uos of less t han 3.4 Lugoon . It ser- ves as a medium to intercept sacp- age path, in the foundation due to 1434 high c) a.Y cont ont unt o 39%(Ghosh,80). 2.2 Slate,phyllit~,schist and fl...

... classification from the point of view of driving the gallery, i.e. the excavation 0 10 20 30 40 50km I   ^ Fig.1. Moravian crystalline part of the Bohemian Massif - D - Fig.2 1 Variscian syenite 2 pre-Cambrian granodiorite and diorite 3 orthogneiss 4 paragneiss and m'gmatite 5 two-mica schists 6 green...

... complexitg of the site and its surroundings. The rock is constituted of gothlandien and ordovicien schist of various types, generally grafitic with colours between a bluish grey in the part near to the dam abutment, to predominant red to- nes upstream of the dam. The area is affected by a great variety...