gps 101 & trimble ccs900 compaction control system
TRANSCRIPT
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GPS 101 & Trimble CCS900
Compaction Control SystemMike Winsor
Keystone Precision Equipment
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GPS 101• GPS Defined• Different levels of positioning
accuracy• What it means to us
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GPS• 38 satellites in orbit• 11,000 miles
altitude• $13 billion
Department of Defense investment
• Department of Defense maintains and operates the system
• Available everywhere for free
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Other Satellite Constellations
• GLONASS–
Owned and operated by the Russian Government
–
India investing–
New SATs placed in orbit
–
Solutions have become much better• Can augment GPS positioning
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Types of GPS Positions
• Autonomous–
10-15m horizontal
• DGPS–
0.5 - 5m horizontal
• “Float”–
Meter to sub-meter
• “Fixed”–
1-3cm (0.03’-0.1’)
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Real Time Kinematic GPS
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What does it mean to us?• Allows us to measure and map
specific data in specific locations• We can measure and record the
“compaction” of material in real time with the ability to map the data such that we can return to specific locations with high accuracy
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Compaction Control Technology
• Can be referred to as–
“Compaction Control System” (CCS)–
“Intelligent Compaction” (IC)–
“Continuous Compaction Control” (CCC)
• Derived from US and EU highway standards–
US DOT / Federal Highway Administration–
Germany – FDVK (Flächendeckende Verdichtungskontrolle)
–
Finland–
Sweden – ATB Väg 2004–
Austria – RVS 8S.02.6
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Compaction Control Technology• Measures soil stiffness as an indication of
soil compaction
• Controls the machine compaction effort versus measurement data
• Displays compaction measurements, pass counts, provides guidance to the operator
• Maps and records compaction data
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Compaction Measurement
Machine Compaction Measurement
Traditional Compaction Measurement=
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CMV Relative Measure• CMV is a relative measure of soil
stiffness• CMV value is affected by a number of
variables, for example:–
Machine size–
Material type–
Material moisture–
Direction of travel–
Machine speed
• CMV represents the value across the entire drum width
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Basic Compaction Control and Documentation• Provides base-level functionality• No interface to OEM on-board vibratory control
or compaction sensor systems• Uses standard Trimble GCS900 v10 components
–
No new or special hardware –
Standard system install on most OEM rollers–
Single and Dual Trimble MS990 Smart GPS+GLONASS Antennas drum mount configurations
022482-1087 – HH-Z5
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Basic Compaction Control and Documentation – On-machine Software• Pass count mapping and
inspection–
View where compaction has taken place in real-time
–
Data displayed in job site coordinates
–
Reduces over/under- compaction of the work area
022482-1087 – HH-Z5
• Layered Lifts–
Sub-material layers compacted in lifts
–
Defined in the office or cab–
Allows faster, more balanced compaction
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Basic Compaction Control and Documentation – On-machine Software
• Cut / Fill Coverage Mapping–
QA / QC design grade specifications have been met, post-compaction
–
Catch errors prior to the start of paving operations
022482-1087 – HH-Z5
• Productivity reporting–
Includes: • System usage• Compaction terrain logging • Machine productivity statistics
–
Logged to a new *.TAG file• Replaces the *.ST file
–
Analyzed in Trimble SiteVision® Office 7
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Advanced Compaction Control and Documentation– On-machine Software• CMV View compaction
levels in real-time –
Detect where compaction does not meet design spec
–
On-screen inspection of coverage area
–
Immediate QA/QC of compaction
–
Reduce use of traditional methods for validation of problem areas
022482-1087 – HH-Z5
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Advanced Compaction Control and Documentation– On-machine Software• Proofing mode and
summary–
On-machine validation of final compaction runs
–
Increases the quality of the final compacted material
022482-1087 – HH-Z5
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1. Strip the topsoil
• Guides the operator to the edge of strip–
No stakes required Cost reduction–
Reduces over strip Cost reduction• Not restricted to scrapers, use any machine
–
e.g. Dozer/Grader/Excavator/Scraper
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2. Excavate unsuitable material
• Guides the operator to the extents of excavation–
No stakes required Cost reduction–
Reduces over excavation Cost reduction• Not restricted to Excavators, use any machine
–
e.g. Dozer/Scraper
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3. Compact, validate in-situ material
• Measure stiffness using intelligent compaction–
Look for soft spots Better to sort it out now than fix later
• Record the surface–
For volume calculations –
Ensure that you get paid
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4. Place a layer of imported material
• System controls grade – guides the operator–
Correct layer thickness Meets spec for compaction• As a result you get a smooth surface
–
Trucks travel faster Increase productivity–
Water runs off if it rains Less downtime
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5. Compact layer of imported material
• Record the number of passes & measure density using intelligent compaction–
Documentation Verify that you meet specifications–
Look for soft spots Better to sort out now, than fix later
• Record the surface–
Calculate the volume Progress payments
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6. Place the next layer of imported material
• System controls grade – guides the operator–
Reduces number of passes to grade, increases productivity–
Ensures the correct layer thickness –
Meets spec for compaction• Higher quality final product!
–
To grade with less time & effort
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7. Compact the layer of imported material
• Record the number of passes & measure density using intelligent compaction–
Documentation Verify that you meet specifications• Record the final surface
–
Documentation that you have met grade requirements–
Calculate the volume Progress payment for imported material
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Summary• Integrated solutions for all machines
–
Reduces costs–
Increases productivity–
Reduces re-work–
Provides QA/QC–
Process Improvement
• Provides value in all phases of the project–
Stripping topsoil–
Excavating unsuitable–
Grading imported material–
Compacting imported material
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Thank you