ML21272A009
| ML21272A009 | |
| Person / Time | |
|---|---|
| Issue date: | 01/29/2020 |
| From: | Scott Stovall Office of Nuclear Regulatory Research |
| To: | |
| S. Stovall | |
| Shared Package | |
| ML21272A001 | List: |
| References | |
| Download: ML21272A009 (13) | |
Text
Garner Valley Downhole Array (GVDA)
1 Gar ner Valley Downhole Ar ray Geotechnical Data
- Nearstratigraphy consists of - surface 18-25 m of lake-bed sediments consisting of alternating layers of sand, silty sand, clayey sand, and silty gravel.
- Decomposed granite classified as gravely sand exists between 25m and 88 m until granite bedrock is reached
From Steller 1996 Shear Modulus and Damping
From Stokoe and Darendeli 1998 Downhole Ar ray
From Steidl et al. 2010 Borehole Velocity Measurements
Downhole, Gibbs 1989 PS Logging, Steller 1996 Shear Wave Velocity (m/sec) Shear Wave Velocity (m/sec) 0 500 1000 1500 20000 500 1000 1500 2000 0 0
10 10
20 20
30 30
40 40
50 50
60 60
70 70
80 80
90 90
100 100 SASW SASW, Stokoe et al. 2004 Shear Wave Velocity (m/sec) 0 200 400 600 800 0
Line 1 5 Line 2
Lines 3, 4 and 5 10
15
20
25
30 Velocity Profiles
Shear Wave Velocity (m/sec) 0 500 1000 1500 2000 0
10 SASW Line 1 SASW Line 2 20 SASW Lines 3, 4 and 5 PS Logging 30 Downhole
40
50
60
70
80
90
100 MASW and MAM Ar rays
From Teague et al. 2018 Microtremor Ar ray Measurement
From Teague et al. 2018 Inver ted Profiles
From Teague et al. 2018 Recorded Strong Ground Motions
R < 25 km R < 50 Km R < 100 km R < 200 km
8729 750
8729 750
8729 518
7877
231
167
45 180 2 R < 200 km
48 9 0 R < 100 km
5 0 R < 50 Km
10 1 0 R < 25 km
1.5-2.5 2.5 -3.5 3.5 - 4.5 4.5 - 5.5 5.5 -6.5 Magnitude References
- J.F. Gibbs, "Near-surface P-and S-wave velocities from borehole measurements near Lake Hemet, California," U.S. Geological Survey Open File Report; 1989
- Steller, R (1996). New Borehole Geophysical Results at GVDA
- Steidl, J.H, Seal S.W, and Civilini F (2010) Observations and Analysis of Ground Motion and Pore Pressure at the NEES Instrumented Geotechnical Field Sites, Poster, http://nees.ucsb.edu/facilities/GVDA
- Stokoe, K. H., and M. B. Darendeli (1998). Laboratory evaluation of the dynamic properties of intact soil specimens, Garner Valley, California, Institute for Crustal Studies Internal Report
- Stokoe KH, Kutulus A, Menq FY. SASW measurements at the NEES Garner Valley test site, California. University of Texas at Austin, College of Engineering Data Report; 2004.
- David P. Teaguea, Brady R. Cox, Ellen M. Rathje (2018), Measured vs. predicted site response at the Garner Valley Downhole Array considering shear wave velocity uncertainty from borehole and surface wave methods, Soil Dynamics and Earthquake Engineering, 113 p 339-355