seismic hazard analysis in santo domingo city team 4 report
TRANSCRIPT
• Study area• Geological setting• HVSR technique• ReMi, Masw and Spac techniques• Final discussion
Outline
H/V Results:
Station SD02_p3-p4(1349_92F1_202)
Station SD03_p3-p4S
(1410_949A_202)
4.32 Secs
3.70 Secs
?
?
H/V Results:
Station SD07_p3-p4 (1550_949A_202)
Station SD04_p2-p3(1532_950C_202)
3.71 Secs 2.38 Secs
?? ?
H/V Results:
Station SD01A_p3-p4 (1300_92F1_202)
Station SD01B_p3-p4 (1308_949A_202)
0.28 Hz 3.58 Secs
0.27 Hz 3.70 Secs
??
Location for ReMi, Spac and Masw surveys
Mirador sur Av.
Mirador del Sur park
Remi and Masw Line 1Remi Line 2
Spac 1Spac 2
Remi Line 3
65.5
m
Last
13.
5 m
Limestone!
Borehole S-4
Vs = 2083 m/s
Vs = 1261 m/s
Vs = 978 m/s
Vs = 795 m/s
Dispersion curveRMS error: 26.623 m/sVs = 909.136 m/sIBC class site B
Line 3 Remi Model
Location for Spac survey No. 2
Mirador sur Av.
Mirador del Sur park
Remi and Masw Line 1Remi Line 2
Spac 1Spac 2
Remi Line 3
• HVSR results have a good relationship with the geological environment of deposition (alluvial fal, prodelta), that is the reason because we got high predominant period peaks.
• Remi, Masw and Spac techniques revealed a high velocity layering structure, validated by 8 boreholes drilled near from the team’s study site.
• Remi line 2 could be defined as a Class C site (360-760 m/s, Stiff Soil- standard designs - NERHP).
• Remi lines 3 could be defined as a Class B site (760-1500 m/s, Soft Rock- low-hazard design - NERHP).
Conclusions