... 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...

... management geotechnical contractor borehole Thickness Upstream Oil & Gas site investigation fill material port facility investigation geotechnical design marine deposit deposit construction Golder stability recommendation reclamation settlement laboratory testing contractor...

... construction of the 82 m stretch of the mentioned tunnel involved in the undercrossing of the canalized Tamandatueí river. koshima doro altan septum column construction Upstream Oil & Gas diameter septum Crown Drilling jet-grouted column river borehole operation excavation Power...

... Construction Contract, which was awarded to Baulderstone Hornibrook Engineering. SITE INVESTIGATIONS Pre Feasibility Phase Prior to 1990, a limited number boreholes were drilled in the area by local investigation contractors. These boreholes established sediments depths in excess of 100metres within...

.... attenuation ae wave wead evaluation AE sensor energy count waveguide ringdown count application Upstream Oil & Gas intermediate stage borehole slope failure fracture Reservoir Characterization reinforcement AE signal characteristic AE activity fracture level Shiotani DETECTION...

... Fluid Dynamics borehole Gault Clay Soil property flow in porous media situ permeability measurement technique cambridge self boring pressuremeter geometry determination self boring permeameter pressuremeter coefficient shape factor Upstream Oil & Gas self boring pressuremeter...

... shaft and gallery at Le Boulou (France) was made, crossing some weak silurian ampellites and the myllonites of Le Boulou fault, making several complementary tests and an extensive instrumentation programme (borehole slotter, extensometer, convergence, stress sensors, etc.). All this information has been...

... limestone limestone borehole excavation geophysical model ABSTRACT: Active design is an expression that has been used fore some years now. This paper will present a case study from an excavation of two cavern constructions (80m long × 16m wide × 12m high) and access tunnels in a Bryozoan...

... to 12m deep, but for depths of about 8m the values of SPT found were higher than 30 blows, indicating a relatively shallow creep process. Ten boreholes were installed for field monitoring, using inclinometers. The primary results obtained indicate a good conformity between the slope stability analysis...

... in a borehole. Observation and confirmation of the outflow of the tracer is performed by naked eye for the rock surface, and by a borehole TV, gas sensors, or thermosensors settled in another borehole for rock interior. We applied the method to several rock slopes in which various type of open cracks exist...

... rock, a strongly foliated and fractured zone, a cataclastic zone and a central zone of cohesionless material. Within this sequence the intensity of fragmentation of the rock mass increases towards the central zone. Surface and underground observations are confirmed through detailed study of borehole...

... of the slope, detailed geological investigations were carried out on this area. geological investigation shale investigation landslide iwaidani side plane kyusyu electric power company weathered shale river Reservoir Characterization borehole ooseuchidani river talus deposit upper reservoir...

... ABSTRACT: The influence of Poisson"s ratio on overcoring was investigated using data from 47 tests. In these tests both the CSIRO HI triaxial cell and the triaxial cell developed by Swedish State Power Board were used. Boreholes drilled parallel to the major principal stress resulted in higher...

... of great importance. Therefore this paper shows the results of the field study on the characteristics concerning air tightness of unlined storage caverns in a sedimentary rock test site near the sea. In the field a 600-meter deep borehole in 76mm-diameter was drilled and the hydrogeological characteristics...

... and sealing system. The natural temperature field will be determined as a basic reference for temperature changes due to the development and operation of the repository and for predictive thermo-mechanical calculations. They will be also helpful to localise occurrences of gas and brine in boreholes. Ground...

... was carried out while the soil in front of the warehouse (Area II) was excavated and displaced for soil vapor treatment (Figure 10). The position and the number of the wells were planned such that the boreholes could later be used as suction wells. Seven horizontal borings and three tilt borings were designed...

... technologies have the advantage of being non-intrusive and non-destructive while downhole/crosshole seismic technologies can be applied from single or widely spaced boreholes which can, at some sites, be drilled outside the fill area to avoid compromising liner or cover systems. The surface seismic retraction...

... are applied to engineering practice, through the use of a large spectrum of the geo-engineering disciplines. The first part of the paper describes the series of investigations (including geological, geomorphological and geostructural studies, borehole logging, and geophysical surveying) undertaken in order...

..., the strain gauges, the strain meters and the pressure cells were connected to the data logger system to acquire the data automatically. The thermocouple psychrometers were used manually. There were four borehole set surrounding the test pit as shown in Figure 1a. These boreholes were drilled prior...

... Angra 2 is being built in Brazil. The selected variable to characterize the soils was the number of blows from Standard Penetration Tests (SPT) and its continuity was investigated by modeling variogramas at several depth levels. Results from 98 boreholes carried out in a 400x 400m2 area encompassing...