Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Geotechnical Field Measurements: G-Tunnel, Nevada Test Site
The FY81 geotechnical measurements focused on borehole measurements in the Grouse Canyon welded tuff in G-tunnel on the Nevada Test Site. These ambient temperature measurements were taken to: (1) establish baseline reference field data, and (2) gain field testing experience in welded tuff. The in situ state of stress was obtained using the three-hole overcoring method with the US Bureau of Mines three-component borehole deformation gage. The orthogonal horizontal stresses were 5.5 and 0.3 MPa and the nominal vertical was 8.5. Biaxial tests were performed on recovered cores and the average modulus of deformation was 31 GPa. The modulus of deformation using the borehole jack (Goodman) had an average value of 12 GPa. This value is not corrected for effective bearing contact area. Two orthogonal boreholes were used to determine the range of hydraulic conductivities. The range was from 0.022 cm/s (22 Darcy's) to 1.923 cm/s (1988 Darcy's). (ERA citation 07:053014)
Geotechnical Field Measurements: G-Tunnel, Nevada Test Site
The FY81 geotechnical measurements focused on borehole measurements in the Grouse Canyon welded tuff in G-tunnel on the Nevada Test Site. These ambient temperature measurements were taken to: (1) establish baseline reference field data, and (2) gain field testing experience in welded tuff. The in situ state of stress was obtained using the three-hole overcoring method with the US Bureau of Mines three-component borehole deformation gage. The orthogonal horizontal stresses were 5.5 and 0.3 MPa and the nominal vertical was 8.5. Biaxial tests were performed on recovered cores and the average modulus of deformation was 31 GPa. The modulus of deformation using the borehole jack (Goodman) had an average value of 12 GPa. This value is not corrected for effective bearing contact area. Two orthogonal boreholes were used to determine the range of hydraulic conductivities. The range was from 0.022 cm/s (22 Darcy's) to 1.923 cm/s (1988 Darcy's). (ERA citation 07:053014)
Geotechnical Field Measurements: G-Tunnel, Nevada Test Site
R. M. Zimmerman (Autor:in) / W. C. Vollendorf (Autor:in)
1982
27 pages
Report
Keine Angabe
Englisch
Radioactive Wastes & Radioactivity , Radioactive waste storage , Nevada test site , Tuff , Site selection , Underground storage , Geologic deposits , Radioactive waste facilities , Mechanical tests , Ambient temperature , Boreholes , Stresses , Drill cores , Deformation , Field tests , Hydrology , Experimental data , Rock mechanics , Fractures , Permeability , ERDA/052002 , ERDA/580300
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