seismic hazard analysis in santo domingo city team 4 report
DESCRIPTION
Seismic hazard analysis in Santo Domingo City Team 4 Report. Outline. Study area Geological setting HVSR technique ReMi , Masw and Spac techniques Final discussion. Team Members. Pablo. Rocio. Fernando. Venezuela. Honduras. Dominican Rep. Team Members. Junior. Heriberto. - PowerPoint PPT PresentationTRANSCRIPT
Seismic hazard analysisin
Santo Domingo City
Team 4Report
• Study area• Geological setting• HVSR technique• ReMi, Masw and Spac techniques• Final discussion
Outline
Team MembersPablo Rocio Fernando
VenezuelaHondurasDominican Rep.
Team Members
Junior
Haiti
Lidia
Honduras
Norberto
Puerto Rico
Heriberto
Dominican Rep.
Study Area
Profile 1Profile 2
Profile 3
Profile 4Profile 5
Profile 6
Geological setting of Santo Domingo
Stratigraphic column
HVSR technique
H/V data acquisition
Geology (Team 4 HVSR study area)
H/V station deployments
H/V Results:
2.60 s
Station SD03_p2-p3(1508_9282_202)
4.02 s
Station SD06_p3-p4(1526_92F1_202)
?? ?
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
??
Isoperiods Map (seconds)
ReMi and Masw techniques
ReMi and Masw data acquisition
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
Remi velocity model Line 2
Dispersion model Line 2
Soil Characterization near to ReMi 2
Soil Classification DR Seismic Code
727 m
Remi Model Line 3
Dispersion curve for 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
MASW Line 1 results
MASW Line 1 results
Spac technique
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
Spac survey No. 2 ground model
• 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
Thanks you so much!