electronic soil test logging - iowa state university...reports for distribution. •terracon’s...
TRANSCRIPT
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Electronic Soil Test Logging
Strategic Advantage or
Unnecessary Headache?
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The Plan
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What is it?
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Digitally Recording Soil Test Data
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Why?
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Field
Sample Review
Digital Entry
Lab Assign
Traditional Work Flow
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Digital Field Logging Work Flow
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Lab Assign
Field
Timely Input
Analysis
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Why?
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Hardware Options
•Laptop
•Windows tablet
• iPad
•Panasonic ToughPad – Android
•PDA
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Hardware Factors
• Battery Life
• GPS
• Glare Resistance
• Ruggedness
• Camera
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Windows
Panasonic ToughPad
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Software Options
•gINT (Full or Simplified)
•Dataforensics pLog
•MS Excel / Access
• Internal Development
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Software Options – Correspondence File
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Software Factors
• Learning Curve / Entry Speed
• Customizable Database Structure (Yet Consistent)
• Longevity
• Syncing Procedure (Hardwire, Cloud, Direct Network Link)
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IH-35E
• $4.8B
• Dallas, TX
• Fast-paced DB
• Rebuild 28-mi corridor
• 481 borings
• 12 to 125 feet deep
• 16,600 LF
• 3 to 5 rigs day/night for 6+
months
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IH-35E
• 5 Panasonic ToughPads with pLog
• Cloud upload on daily basis
• Import via PC gINT
• Assign lab
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Dataforensic’s pLog
Core principals
1.Minimize text input
• buttons, checkboxes, and pull-down lists.
2.Customizable
3.Real-time data upload
4.Data entry validation
• cannot choose “very loose clay”
5.Integrate logging, digital photographs, and GPS
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Courtesy Dataforensics
Needed Before
Public Release
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Courtesy Dataforensics
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Courtesy Dataforensics
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Courtesy Dataforensics
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Courtesy Dataforensics
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Courtesy Dataforensics
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Courtesy Dataforensics
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Courtesy Dataforensics
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Pros
• Battery Life
• Standardization
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Cons
• Sun Glare
• Loss of Detail
• Software
Navigation
Costs
• $1.5k to $2.5k per unit (plus hardware)
• $500 to $1k one time setup
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Success Story
• Eliminates transcription errors
• Fast, accurate lab assignment
• Instant transmission of field logs to office or client
• Time saving
• QA/QC “Check Print” procedure
• “Saved 30 minutes per log”
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“Could not have met accelerated
schedule without it”
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Lessons Learned
• Train up front
• Accidental overwrite of final logs with field logs
• Intentional database management
• Full-time field engineer
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CONSTRUCTION MATERIALS
ENGINEERING AND LABORATORY
MANAGEMENT SYSTEM
(CMELMS™)
Real-Time Field and Laboratory Data
Management and Reporting
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What is CMELMS™?
• Field and laboratory testing data and results management system.
• Ease of reporting and documentation purposes.
• Real-time access to test results and reports.
• Internally developed.
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Project Scheduling
Dispatch Report is
created and saved in
CMELMS™
Contractors e-mail or call-in
request for services
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Project Scheduling
Dispatch/Schedule Report is sent to Field
Technicians and Project Managers via
Smartphone for acceptance
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Digital Field Data Collection and Mobile
Communication• Ability to collect and enter
field test results digitally
into CMELMSTM
• Provides instant
communications
• Expedites resolution of
non-conformance
issues
• Eases reporting and
clarifies site conditions
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Digital Field Data Collection and Mobile
Communication• Project specific or locally-
regulated inspection forms
and project design drawings
are stored on our servers
and are available for
engineers/inspectors in the
field.
• Field engineers/inspectors
fill out forms, create
sketches, and annotate
drawings and photos.
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Report Submittal
• CMELMSTM tracks all reports in the system, provides immediate availability of data, including summaries of all density tests or concrete tests performed on the project, and can produce digital or paper copies of reports for distribution.
• Terracon’s Client Document Web Site allows for designated and approved members of the project team to view, print or download our inspection and test reports as they are uploaded daily to expedite report submittals, save on postage costs, and reduce the use of paper.
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Electronic Logging
via
In-situ Testing
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From: Mayne 2013 SPT
Standard Penetration Test
CPT
Cone Penetration Test
DMT
Flat Plate Dilatometer Test
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Digital Field Logging Work Flow
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Lab Assign
Field
Timely Input
Analysis
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In-situ Testing
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PRIOR INFORMATION
SITE CHARACTERIZATION
• Geophysics
• Drilling & Coring
• Sampling
• In-Situ Testing
LABORATORY TESTING
THEORETICAL
EVALUATIONS
GEOTECHNICAL
MODEL PRIOR
EXPERIENCE
ANALYTICAL
METHODSENGINEERING
ANALYSIS
NUMERICAL
METHODS
GEOTECHNICAL SOLUTION
Why?
From Paul W. Mayne, PhD, P.E.,
Professor, Civil Engineering, GT.
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Why?
GEOTECHNICAL SOLUTION
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Pros and Cons
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Method Advantages Disadvantages
SPT Rigs & operators in place
Many correlations
Obtain sample
Highly variable
Crude number for
analysis
5-ft intervals
CPT
Fast and continuous
Operator independent
3+ measurements
Strong basis for correlations
High capital investment
Requires skilled
operator
Electronics
No soil samples
DMT Operator independent
Direct lateral measurement
Strong basis for correlations
Difficult to push in
dense materials
Calibration for local
soils
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CPT Analysis Reliability
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After Table 8 Robertson, P.K., Cabal, K.L. (2012). “Guide to Cone
Penetration Testing for Geotechnical Engineering.”
*Improves with shear wave
measurements
Pile Design
BearingCapacity
Settlement*
Liquefaction
Clay
Sand
Low Moderat
e
High
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Terracon’s CPT Program
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Terracon’s CPT Program
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eToolbox
Field Test
Process
Data &
Correlations
Engineering Analysis
Print Logs(Standard & Correlative)
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Terracon’s CPT Program
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Terracon’s CPT Program48
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CPT Log
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CPT Log
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Only display
if have data
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Correlated Parameters CPT Log
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1. Tip Resistance
2. Skin Friction
3. Friction Ratio
4. Pore Pressure
5. Shear Wave Velocities
6. Adjacent Boring Description
7. Unit Weight
8. Vertical Stress
9. N60 Value
10. Push Rate
11. Shear Strength
12. Sensitivity
13. OCR
14. Effective Friction Angle
15. Hydraulic Conductivity
16. Small Strain Modulus
17. Elastic Modulus
18. Constrained Modulus
19. Tilt Angles
20. Relative Density
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Other
CPT
Features
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Strata
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Other
CPT
Features
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Other CPT Features
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Automated Fence
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DMT Log
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DMT Log
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Only display if
have data
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Rig TypeTorque
(ft-K)
Push
(tons)
Pull
(tons)
Cost (K$) Hrly.
Chg.
Daily
Prod.WU
Purch. Annual
CME
550X11.3 9 14 $390 $90 $54 130 -
GP
66220.56 20 23 $200 $52 $32 275 75%
GP
78224.0 16 24 $300 $72 $44 200 18%
GP
80406.0 30 40 $450 $102 $61 200 8%
CPT
Truck/
ATV
n/a 30 40 $500 $111 $67 350 80%
Pagani
/Truckn/a 15 +/- 20 $100 $33 20 250 72%
Comparison of Exploration Equipment
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Recent Project – LSU Foundation
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4 Soil Borings to 70 ft (280 lf)
5 CPT to 70 ft & 1 SCPT to 100 ft (450 lf)
3 days to complete (90 lf/day)
2 days to complete (225 lf/day)
The Business Case
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Recent Project – Sundrop Energy
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5 Soil Borings to 100 ft (500 lf)
5 CPT to 100 ft & 7 SCPT to 100 ft (1,200 lf)
6 days to complete (83 lf/day)
4 days to complete (300 lf/day)
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Status Quo
Commoditization
& Low Bid Procurement
Ethical?
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?
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16%
45%
27%
11%2%
During construction, I rarely, if ever, encounter soil, rock and/or groundwater
conditions that are significantly different from those expected.
so
74112
-40
10
60
110
160
Agree Disagree
Somewhat Agree
Strongly Agree
Agree
Disagree
Strongly Disagree
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During construction, I rarely, if ever, encounter soil, rock and/or groundwater
conditions that are significantly different from those expected.
so
Agree Disagree
60%
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2%10%
40%36%
11%
I find that inadequate use of technological innovation creates projects that
require overdesign of deep foundations.
so
160
23
-40
10
60
110
160
Agree Disagree
![Page 69: Electronic Soil Test Logging - Iowa State University...reports for distribution. •Terracon’s Client Document Web Site allows for designated and approved members of the project](https://reader033.vdocument.in/reader033/viewer/2022041903/5e61e203519100736a10d68a/html5/thumbnails/69.jpg)
I find that inadequate use of technological innovation creates projects that
require overdesign of deep foundations.
so
Agree Disagree
47%
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No Changed
Conditions
Appropriate
Foundations
Inadequate
Innovation
60%
47%
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2%3%13%
56%
26%
Based upon my own project experience, I believe that geotechnical
engineers adequately maintain their ethical responsibility to hold paramount
the safety, health and welfare of the public.
175
9-20
30
80
130
180
AgreeDisagree
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Based upon my own project experience, I believe that geotechnical
engineers adequately maintain their ethical responsibility to hold paramount
the safety, health and welfare of the public.
so
Agree Disagree
82%
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74
Provide ValueSafer
More Efficient
6. Conduct themselves honorably, responsibly, ethically, and lawfully so as to
enhance the honor, reputation, and usefulness of the profession.
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“My passion has been to build an enduring company whose people were motivated
to make great products. Everything else was secondary. Sure it was great to make a
profit, because that was what allowed you to make great products. But the products,
not the profits were the motivation.”
$46.3 Billion Revenue
$13.1 Billion Profit
(28% of Revenue)
Inexplicable