research-in-progress reliability based deep foundation .... moghaddam - r… · rex costley, pe...
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RESEARCH-IN-PROGRESS
Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test
William D. Lawson, P.E., Ph.D.
Department of Civil and Environmental Engineering Texas Tech University
Rozbeh Moghaddam, MS
Department of Civil and Environmental Engineering Texas Tech University
STGEC 2013 44th Southeast Transportation Geotechnical Engineering Conference Crowne Plaza Hotel: Baton Rouge, LA Wednesday, December 4, 2013
ABOUT THE PROJECT
RESEARCH-IN-PROGRESS Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test
TCP Reliability Project Slide 2 STGEC: 4 DEC 2013
Project Stats
• SPONSOR: Texas Department of Transportation
• PROJECT NAME: Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test
• PROJECT ID: 0-6788
• BUDGET TOTAL: $399,845
• START DATE: 09/12/2012
• END DATE: 08/31/2014
TCP Reliability Project Slide 3 STGEC: 4 DEC 2013
Project Team • PROJECT MANAGER: Darrin Jensen (RTI)
• LEAD PROJECT ADVISOR: Sean Yoon, PhD, PE (BRG)
• PROJECT ADVISORS: Marcus Galvan, PE (BRG)
John Delphia, PE (BRG)
Rex Costley, PE (PHR)
Mainul Khan, PE (HOU)
• RESEARCH SUPERVISOR: William D. Lawson, PE, PhD
• CO-PI’S: Priyantha W. Jayawickrama, PhD Hoyoung Seo, PhD, PE James Surles, PhD Timothy Wood, MS
• STUDENTS: Rozbeh Moghaddam (doctoral) Paul Bartel (undergrad)
TCP Reliability Project Slide 4 STGEC: 4 DEC 2013
Industry Advisory Panel
TCP Reliability Project Slide 5 STGEC: 4 DEC 2013
Dan A. Brown, Ph.D., P.E., D.GE President/Senior Principal Engineer
Dan Brown and Associates, PC
Pat Hannigan, P.E. President and Illinois Branch Manager
GRL Engineers, Inc.
Peggy Hagerty Duffy, P.E. Technical Advisor
ADSC: The International Association of
Foundation Drilling
Mark McClelland, P.E. Senior Geotechnical Engineer
L&G Engineering & Laboratory
Robert Simpson, M.S. Western Regional Manager
Loadtest USA
Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test TxDOT 0-6788
• OBJECTIVE: To update Texas Department of Transportation (TxDOT) design guidance for deep foundations to reflect the reliability of the Texas Cone Penetration (TCP) based design method.
• OUTCOME: The study will evaluate the performance of the TCP method and will include calibration of the resistance factors for LRFD design of axially loaded drilled shafts and driven piles designed using TCP data.
TCP Reliability Project Slide 6 STGEC: 4 DEC 2013
DEEP FOUNDATION DESIGN AT TXDOT
RESEARCH-IN-PROGRESS Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test
TCP Reliability Project Slide 7 STGEC: 4 DEC 2013
Deep Foundations… TxDOT
• 30 percent of TxDOT deep foundations consist of piling; used mostly along Texas Gulf Coast
• Square, prestressed concrete displacement piles are the section of choice used by TxDOT; typical sizes are 16, 18 and 20 inch square
• 70 percent of TxDOT deep foundations are drilled shafts; typical diameters 30” and 36”
TCP Reliability Project Slide 8 STGEC: 4 DEC 2013
Field Test Method
Texas Cone Penetrometer
• Developed in 1949 • Useful for wide
range of SOIL and ROCK types and strengths
• Design charts related TCP values to soil bearing strength
TCP Reliability Project Slide 9 STGEC: 4 DEC 2013
TCP Test Origin and History
First Use of TCP
Test (1949)
Correlation
charts first
published (1956)
TCP data shown
in plans 1954)
Charts updated
in 1972
Charts updated
in 1982 Development of
TCP Test
TCP Reliability Project Slide 10 STGEC: 4 DEC 2013
Field Test Method
Texas Cone Penetrometer
TCP Reliability Project Slide 11 STGEC: 4 DEC 2013
TCP Reliability Project Slide 12 STGEC: 4 DEC 2013
The Design Charts TxDOT TCP Foundation Design Charts
• Refer to Chapter 5 – “Foundation Design,” TxDOT Geotechnical Manual
• Four Design Charts – Figure 5-1. Allowable Skin Friction
(TCP Values Softer than 100 Blows/12 in.)
– Figure 5-2. Allowable Point Bearing (TCP Values Softer than 100 Blows/12 in.)
– Figure 5-3. Allowable Skin Friction (TCP Values Harder than 100 Blows/12 in.)
– Figure 5-4. Allowable Point Bearing (TCP Values Harder than 100 Blows/12 in.)
TCP Reliability Project Slide 13 STGEC: 4 DEC 2013
TCP Reliability Project Slide 14 STGEC: 4 DEC 2013
Texa
s C
on
e P
en
etro
met
er
De
sign
Ch
arts
Texa
s C
on
e P
en
etro
met
er
De
sign
Ch
arts
TCP Reliability Project Slide 15 DICEP: 23 October 2013
Reliability Analysis of TCP Method
• Compare predicted foundation capacity based on the existing TCP design method to measured capacity from full scale load tests in terms of skin friction and end bearing
TCP Reliability Project Slide 16 STGEC: 4 DEC 2013
The Required Data Set
FULL SCALE LOAD TESTS
• Scope – Drilled shafts
– Driven piles
• Required Parameters – Measured end bearing
– Measured side friction
• Extent – Complete test
– Loaded to failure
– Sufficient statistical power
CORRESPONDING TCP DATA
• Scope – Drilled shafts
– Driven piles
• Required Parameters – Predicted end bearing
– Predicted side friction
• Extent – Complete subsurface profile
– Full range of geomaterials
– Sufficient statistical power
TCP Reliability Project Slide 17 STGEC: 4 DEC 2013
WORK COMPLETED
RESEARCH-IN-PROGRESS Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test
TCP Reliability Project Slide 18 STGEC: 4 DEC 2013
TCP Reliability Project STGEC: 4 DEC 2013 Slide 19
TASK 2… COMPILE TXDOT LOAD TEST DATA
TxDOT 0-6788 Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test
TCP Reliability Project Slide 20 STGEC: 4 DEC 20
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Nu
mb
er o
f P
iles
Load Test Year NO TCP DATA
Summary: TCP Data Available: 54 TCP Data Unavailable : 79 Total Number of Piles : 133
Summary of Available TxDOT Load Test Data, Driven Piles
TCP Reliability Project Slide 21 STGEC: 4 DEC 20
Geographical locations of Load Tests for Driven Piles, Classified by Counties
TCP Reliability Project Slide 22 STGEC: 4 DEC 20
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1954 1960 1969 1972 1973 1975 1986 2007 2008 2009
Nu
mb
er o
f D
rille
d S
haft
s
Load Test Year TCP DATA NO TCP DATA
Summary: TCP Data Available: 28 TCP Data Unavailable : 4 Total Number of Shafts : 32
Summary of Available TxDOT Load Test Data, Drilled Shafts
TCP Reliability Project Slide 23 STGEC: 4 DEC 20
Geographical locations of Load Tests for Drilled Shafts, Classified by Counties
TCP Reliability Project Slide 24 STGEC: 4 DEC 20
TASK 3… OBTAIN SUPPLEMENTAL LOAD TEST DATA
TxDOT 0-6788 Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test
TCP Reliability Project Slide 25 STGEC: 4 DEC 20
PHASE 1: Missouri and Arkansas TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 26 STGEC: 4 DEC 2013
Project
Site
State DOT/
Test Site
Location
Foundation
Type
No. of Load
Tests
Soil/Rock
Type
Number of
Geotechnical
Borings
Geotechnical
Boring Depth
(feet)
1 Warrensburg,
Missouri
Drilled
Shaft
15 Clay -
Weak
Rock
1 TCP
1 Correlation 50
2 Frankford,
Missouri
Drilled
Shaft
10 Clay-
Weak
Rock
1 TCP
1 Correlation 40
3 Siloam
Springs,
Arkansas
Drilled
Shaft
3 Hard Rock 1 TCP
1 Correlation 35
4 Turrell,
Arkansas
Drilled
Shaft
3 Sand-Clay
Mix
1 TCP
1 Correlation 100
5 Monticello,
Arkansas
Drilled
Shaft
3 Sand-Silt-
Clay Mix
1 TCP
1 Correlation 100
Totals 10 borings 650
PH
ASE
1:
Mis
sou
ri a
nd
Ark
ansa
s TA
SK 3
. Ob
tain
Su
pp
lem
enta
l Lo
ad T
est
Dat
a
TCP Reliability Project Slide 27 STGEC: 4 DEC 2013
PHASE 1: Warrensburg, Missouri TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 28 STGEC: 4 DEC 2013
PHASE 1: Frankford, Missouri TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 29 STGEC: 4 DEC 2013
PHASE 1: Turrell, Arkansas TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 30 STGEC: 4 DEC 2013
PHASE 1: Monticello, Arkansas TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 31 STGEC: 4 DEC 2013
PHASE 1: Siloam Springs, Arkansas TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 32 STGEC: 4 DEC 2013
Watermelon Break
TCP Reliability Project Slide 33 STGEC: 4 DEC 2013
PHASE 2: Texas and Louisiana TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 34 STGEC: 4 DEC 2013
Drilling
Sequence State Test Site Location Soil/Rock
Type
Number
of Borings
Boring
Depth (ft)
1 TX Crosby, Tx clay - sand 1 75
2 LA Patterson Slough sand 1 75
3 LA Bickham Slough sand 1 100
4 LA Ragley Overpass clay 1 75
5 LA I-10 at Essen Lane clay 1 75
6 LA I-10 at Siegen to Highland clay 1 95
7 LA I-10 at Causeway Blvd Test Pile 1 clay 1 70
8 LA North Causeway Blvd Test Pile 3 clay 1 85
9 LA Little River Bridge at Zenoria clay 1 75
10 LA I-49 at US71 North clay - IGM 1 60
11 LA I-49 at Unknown Pond clay - IGM 1 70
12 LA I-49 at LA 170 clay 1 45
13 LA I-49 at Mynnerlyn Chapel Road clay - IGM 1 70
PH
ASE
2:
Texa
s an
d L
ou
isia
na
TASK
3. O
bta
in S
up
ple
men
tal L
oad
Tes
t D
ata
TCP Reliability Project Slide 35 STGEC: 4 DEC 2013
PHASE 2: Crosby, Texas TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 36 STGEC: 4 DEC 2013
PHASE 2: Ragley, Louisiana TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 37 STGEC: 4 DEC 2013
PHASE 2: Baton Rouge, Louisiana TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 38 STGEC: 4 DEC 2013
PHASE 2: New Orleans, Louisiana TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 39 STGEC: 4 DEC 2013
PHASE 2: Shreveport, Louisiana TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 40 STGEC: 4 DEC 2013
PHASE 3: New Mexico TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 41 STGEC: 4 DEC 2013
State Test Site Location Soil/Rock
Type
Number of
Borings
Boring
Depth (ft)
NM Ohkay Owingeh, NM at NM74/ Rio Grande sand 1 60
NM Albuquerque, NM at I-40 and the Rio Grande sand 1 70
NM Albuquerque, NM at I-25 and Lomas Blvd sand 1 65
NM Sunland Park, NM at Sunland Park Blvd/ Rio
Grande sand 1 90
PH
ASE
3:
New
Mex
ico
TA
SK 3
. Ob
tain
Su
pp
lem
enta
l Lo
ad T
est
Dat
a
TCP Reliability Project Slide 42 STGEC: 4 DEC 2013
PHASE 3: Sunland Park, New Mexico TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 43 STGEC: 4 DEC 2013
PHASE 3: Albuquerque, New Mexico TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 44 STGEC: 4 DEC 2013
PHASE 3: Ohkay Owingeh, New Mexico TASK 3. Obtain Supplemental Load Test Data
TCP Reliability Project Slide 45 STGEC: 4 DEC 2013
ENER
GY
MEA
SUR
EMEN
TS
TASK
3. O
bta
in S
up
ple
men
tal L
oad
Tes
t D
ata
TCP Reliability Project Slide 46 STGEC: 4 DEC 2013
ENER
GY
MEA
SUR
EMEN
TS
TASK
3. O
bta
in S
up
ple
men
tal L
oad
Tes
t D
ata
TCP Reliability Project Slide 47 STGEC: 4 DEC 2013
Load Test Dataset
TCP Reliability Project Slide 48 STGEC: 4 DEC 2013
State Driven Piles
Drilled Shafts
Texas 28 27
Arkansas -- 9
Louisiana 2 6
Missouri -- 25
New Mexico -- 4
Oklahoma -- 2
Total 30 73
Driven Pile Projects (30)
TCP Reliability Project Slide 49 STGEC: 4 DEC 2013
Drilled Shaft Projects (73)
TCP Reliability Project Slide 50 STGEC: 4 DEC 2013
WORK IN PROGRESS
RESEARCH-IN-PROGRESS Reliability Based Deep Foundation Design Using Texas Cone Penetrometer (TCP) Test
TCP Reliability Project Slide 51 STGEC: 4 DEC 2013
Site Characterization
TCP Reliability Project Slide 52 STGEC: 4 DEC 2013
Load Test Interpretation
TCP Reliability Project Slide 53 STGEC: 4 DEC 2013
TCP Energy Analyses
TCP Reliability Project Slide 54 STGEC: 4 DEC 2013
Reliability Analyses
TCP Reliability Project Slide 55 STGEC: 4 DEC 2013
THANK YOU!!!
TCP Reliability Project STGEC: 4 DEC 2013 Slide 56