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Keywords: borehole
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-616
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-602
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-592
... calculation safety assessment repository monitoring radioactive waste repository shaft construction Upstream Oil & Gas rock salt borehole determination geological barrier deformation GEOTECHNICAL MEASUREMENTS FOR SAFETY ASSESSMENTS IN DIFFERENT DEVELOPMENT PHASES OF RADIOACTIVE WASTE...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-142
... ground according to a national guideline. Upstream Oil & Gas borehole pipe knowledge management TCE extraction investigation remediation concentration tce contamination factory site environmental standard value takenaka corporation land reclamation soil vapor extraction site...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-128
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-023
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-133
..., 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-055
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-171
... and a further 20m3 of grout was introduced through surface boreholes. Subsequent imaging clearly showed a significant increase in seismic velocity within the disturbed zone. No further movement has occurred in the collapse area over the following years. INTRODUCTION During tunnelling for the North West Sewer...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-176
... conditions and to locate significant voids or weak ground. These technologies may be implemented from the conduit or boreholes according to site requirements. The SRT technique does not require entry to the length of pipe and has been used as a rapid scanning method of the major inteceptor sewers...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-362
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-318
.... Items described in the site investigations specification document include not only the scope of work, but methods of advancing boreholes, the use of casing, supervision, frequency and method of in-situ testing and sampling, and laboratory testing schedule. 1 David K. Nolan, Golder Associates Pty Ltd...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-348
...° crowns, there was a drilled borehole of 8,5 m and 7,5 m of column s cementation; for any column of the septum there was a drilled borehole of 8,5 m and (nominally) 1,5 m of columns cementation: so the typical length of the excavation advances resulted of 7 m along the mentioned stretch of tunnel...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-319
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-444
.... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-361
...-in-place piezometers, packer type tests and tests in standpipe piezometers placed in pre-drilled boreholes. Using these instruments, a constant head or falling head test is typically carried out and interpreted from Darcy s flow rule in the form of Hvorslev s general equation (Lambe and Whitman, 1969...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-573
.... - Geophysical investigation (132ml refraction seismic, 3030m electrical and EM profiles, 3 electrical sounding, and 6340m VLF-R survey). - 7795m cored boreholes. - 387m pressuremeter boreholes. - 208 ut pressuremeter and dilatometer tests. - 30 ut hydrofract tests on 4 boreholes. - 1527 ut laboratory tests...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-608
... modeling construction strength 0 Sweden equation of state bryozoan limestone limestone borehole excavation geophysical model THE USE OF A GEOLOGICAL MODEL IN A CAVERN CONSTRUCTION IN LIMESTONE Per-Gunnar Alm1 and Leif Bjelm2 ABSTRACT Active design is an expression that has been used fore some...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-452
... 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...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-507
... 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...

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