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Structural Engineering and Earthquake Simulation Laboratory1
Experimental and Micromechanical Computational Study of Pile Foundations Subjected to Liquefaction-Induced Lateral Spreading - Task 1 (1g Tests)Task 1 (1g Tests)
S. Thevanayagam, UB
Research Progress MeetingSeptember 11, 2006, 2-4 pm; UB-VTC
PI: R. Dobry, co-PI’s: A. Elgamal, S. Thevanayagam, T. Abdoun, M. ZeghalUB-NEES Lab: A. Reinhorn, M. Pitman, J. Hanley, T. AlbrechcinskiTulane: Usama El ShamyStudents: UB and RPI Students
Structural Engineering and Earthquake Simulation Laboratory2
Review of Minutes (ST, RD) UB Progress (ST)
Actuators (MP, AMR, ST) (Final stages, 2 or 3 more days of fine tuning work remains) Laminar Box Readiness (NE) (Ready)
Preparatory Shake tests (ST, MP) 3m Box, Base & Rings & Top of Soil – 9/21-10/05/06 6m Box – LG-0 – 10/06-10/25/06
Project Shake Tests (ST, RD) & Impacts on Project Coordination 6m Box – LG-1 – 10/30 – 11/15/06 6m Box – SG-1 – 11/15 -11/30/06 Single Pile – Test 1A – 3/15-4/15/07 Single Pile – Test 1B – 4/15-5/15/07 Group Pile – Test 2 – 6/1-7/30/07 Lateral shaking tests (3 & 4) – 8/1-11/30/07
Non-Destructive Shaking (ST) Consensus on ND Motion (MP, AE, MZ, RD) (revised motion to be sent before meeting)
Agenda – 9/11/06Agenda – 9/11/06
Structural Engineering and Earthquake Simulation Laboratory3
Box Assembly - ReadyBox Assembly - Ready
Structural Engineering and Earthquake Simulation Laboratory4
Membrane - ReadyMembrane - Ready
Structural Engineering and Earthquake Simulation Laboratory5
Review of Minutes (ST, RD) UB Progress (ST)
Actuators (MP, AMR, ST) (Final stages, 2 or 3 more days of fine tuning work remains) Laminar Box Readiness (NE) (Ready)
Preparatory Shake tests (ST, MP) 3m Box, Base & Rings & Top of Soil – 9/21-10/05/06 6m Box – LG-0 – 10/06-10/25/06
Project Shake Tests (ST, RD) & Impacts on Project Coordination 6m Box – LG-1 – 10/30 – 11/15/06 6m Box – SG-1 – 11/15 -11/30/06 Single Pile – Test 1A – 3/15-4/15/07 Single Pile – Test 1B – 4/15-5/15/07 Group Pile – Test 2 – 6/1-7/30/07 Lateral shaking tests (3 & 4) – 8/1-11/30/07
Non-Destructive Shaking (ST) Consensus on ND Motion (MP, AE, MZ, RD) (revised motion to be sent before meeting)
Agenda – 9/11/06Agenda – 9/11/06
Structural Engineering and Earthquake Simulation Laboratory6
Revised Ground MotionRevised Ground Motion
umax= ±0.74’’
umin= ±0.01’’
f = 2 Hz
-0.006
-0.004
-0.002
0.000
0.002
0.004
0.006
0 1 2 3 4 5Time (s)
Acc
eler
atio
n (g
)
Structural Engineering and Earthquake Simulation Laboratory7
Schedule for Preparatory Shake TestsSchedule for Preparatory Shake Tests Task Name Duration Start Finish
Preparatory Shake Tests 28 days Mon 9/18/06 Wed 10/25/06
3m Box Test 14 days Mon 9/18/06 Thu 10/5/06
Fill the box with water for leak test 2 days Mon 9/18/06 Tue 9/19/06
Reduce water level to 2ft 1 day Wed 9/20/06 Wed 9/20/06
Pump the slurry to theLB up to 3m 3 days Thu 9/21/06 Mon 9/25/06
Cone & Bucket Density Tests 3 days Thu 9/21/06 Mon 9/25/06
CPT 1 day Tue 9/26/06 Tue 9/26/06
Remove top 3m rings 1 day Wed 9/27/06 Wed 9/27/06
Install accelerometers top of the soil 1 day Wed 9/27/06 Wed 9/27/06
Safety Cables; Shaking/Actuator controls; Sensor/DAQ tuning3 days Wed 9/27/06 Fri 9/29/06
NDS & DS Shaking 1 day Mon 10/2/06 Mon 10/2/06
Pump the slurry back to the storage areas 3 days Tue 10/3/06 Thu 10/5/06
Test LG-O 14 days Fri 10/6/06 Wed 10/25/06
Put soil instruments inside the box 2 days Fri 10/6/06 Mon 10/9/06
Fill the box with water up to 2ft 0.5 days Tue 10/10/06 Tue 10/10/06
Pump the slurry to theLB 3.5 days Tue 10/10/06 Fri 10/13/06
Cone & Bucket Density Tests 4 days Tue 10/10/06 Fri 10/13/06
CPT 1 day Mon 10/16/06 Mon 10/16/06
Safety cables, Actuator/sensor/DAQ fine tuning1 day Tue 10/17/06 Tue 10/17/06
NDS & DS Shaking 1 day Wed 10/18/06 Wed 10/18/06
CPT 1 day Thu 10/19/06 Thu 10/19/06
Pump the slurry back to the storage areas 4 days Fri 10/20/06 Wed 10/25/06
17 24 1 8 15 22Sep 17, '06 Sep 24, '06 Oct 1, '06 Oct 8, '06 Oct 15, '06 Oct 22, '06
Structural Engineering and Earthquake Simulation Laboratory8
Preparatory Shake Test #1Preparatory Shake Test #13m Box Test : 9/21 – 10/05
Step 1: Fill the box with water for leak test & reduce level to 2 ft.
Step 2: Pump the slurry to the laminar box up to 3m; density tests; CPT tests
Step 3: Install accelerometers top of the soil
Step 4: Remove Top 3m Rings
Step 5: Safety Cables; Shaking/Actuator controls; Sensor/DAQ tuning
Step 6: NDS & DS Shaking
Step 7: Pump the slurry back to storage
Structural Engineering and Earthquake Simulation Laboratory9
3m Box Test Instrumentation3m Box Test Instrumentation
•Ring and Base Instrumentation:•Accelerometers (Already installed)
•Soil Instrumentation:•Put a steel/wood plate on top of the soil and install X-Accelerometers & Y-Accelerometers
Structural Engineering and Earthquake Simulation Laboratory10
3m Box Test - Instrumentation3m Box Test - InstrumentationY-Acc(Top of the soil)
X-Acc (Top of the soil)
Total Need:
3
3
Readiness:
East
South
2.0
1.0
0.0
Readily Available
Readily Available
Wood/Steel on top of the soil
Structural Engineering and Earthquake Simulation Laboratory11
Preparatory Shake Test #2Preparatory Shake Test #2
Step 1: Install limited soil instruments inside the box
Step 2: Fill the box with water up to 2 ft.
Step 3: Pump the slurry to the laminar box up to 6m; Density tests
Step 4: CPT
Step 5: Safety cables, Actuator/sensor/DAQ fine tuning
Step 7: NDS & DS Shaking
Step 8: CPT
Step 9: Pump the slurry back to the storage areas
6m Box – LG-0 – 10/06-10/25/06
Structural Engineering and Earthquake Simulation Laboratory12
LG-0 InstrumentationLG-0 Instrumentation
Structural Engineering and Earthquake Simulation Laboratory13
LG-0 Instrumentation (NS & EW View)LG-0 Instrumentation (NS & EW View)
Structural Engineering and Earthquake Simulation Laboratory14
Instrumentation TableInstrumentation Table: Test LG-0: Test LG-0
Structural Engineering and Earthquake Simulation Laboratory15
Review of Minutes (ST, RD) UB Progress (ST)
Actuators (MP, AMR, ST) (Final stages, 2 or 3 more days of fine tuning work remains) Laminar Box Readiness (NE) (Ready)
Preparatory Shake tests (ST, MP) 3m Box, Base & Rings & Top of Soil – 9/21-10/05/06 6m Box – LG-0 – 10/06-10/25/06
Project Shake Tests (ST, RD) & Impacts on Project Coordination 6m Box – LG-1 – 10/30 – 11/15/06 6m Box – SG-1 – 11/15 -11/30/06 Single Pile – Test 1A – 3/15-4/15/07 Single Pile – Test 1B – 4/15-5/15/07 Group Pile – Test 2 – 6/1-7/30/07 Lateral shaking tests (3 & 4) – 8/1-11/30/07
Non-Destructive Shaking (ST) Consensus on ND Motion (MP, AE, MZ, RD) (revised motion to be sent before meeting)
Agenda – 9/11/06Agenda – 9/11/06
Structural Engineering and Earthquake Simulation Laboratory16
To review 3m Box Test Data & Fine tune Test LG-0
Next Meeting? – 10/16/06 ??Next Meeting? – 10/16/06 ??