Intelligent Compaction, A Contractor s Perspective

Transcription

1 1 Intelligent Compaction, A Contractor s Perspective Setup, Operations, Analysis VALERIE SHEEDY, P.G. AGGREGATE MANAGER ULLAND BROTHERS, INC.

2 Project Summary 2 S.P (T.H. 14) IC Rollers, no Thermal Bar (PMIT?) SPWEB440B 90 gyrations, 44 FAA AC 44,000 tons Paved July 9 th to August 6 th 50 miles from Plant to Job

3 3 Intelligent Compaction What are we measuring? GPS Physical Location of the Rollers Speed Mat Temperature Feedback on Frequency and Amplitude (CMV)

4 4 Intelligent Compaction What are we measuring? Roller Display Generates a Map: Pass Count Temperature Speed CMV

5 5 Does this project have IC? Special Provisions Bid Item for Quality Management Special

6 IC: What s in the 6 Specification? Contractor to Provide: Rover Instrumented Rollers Temperature Sensor Accelerometer Access to Cloud Geoid Model Cloud Accounts/Login Agency to Provide: Control Points on the Job Alignment Files

7 IC: What Is Involved 7 With This Project? Assess the Equipment: Software and Hardware, Upgrades and Maintenance (Displays, connectivity, sensors) Setup Cloud Accounts and Services: Trimble TCC Explorer, Vision Link

8 IC: What s Involved 8 With This Project? Set Up the Project: Owner s Alignment Files Site Calibration Base Station: Traditional Base Station or VRS Network

9 IC: What Is Involved With This Project? Assess the Equipment: Software (& Upgrades), Hardware & Maintenance 9 - Displays - Connectivity - Sensors

10 IC: What Is Involved With This Project? 10 Set up cloud accounts and service - Trimble TCC Explorer

11 IC: What Is Involved With This Project? 11 Set up cloud accounts and service - VisionLink

12 Set up Project Alignment Files & Control Points Site Setup & Calibration Update Machine Files Intelligent Compaction What is involved in this project?

13 Intelligent Compaction 13 Base Station Traditional Base Station or VRS Network Majority of this project was corrected through MnCORS/ VRS Network/RTRN Free Service, registration is required Set up account and users in advance of project g/cors/ Office of Land Management What is involved in this project?

14 Intelligent Compaction Paving, Day Form IC 107 Daily log of activity Will help to keep track of changes, arrangement of rollers, etc. Make another column or two and log the weather temperature, wind

15 Intelligent Compaction Paving, Day On Rollers: Verify Connections Check that the rollers have fixed (RTK) positions Check Layer/Lift-Direction EB Lift 1, WB Lift 2 With Rover: Start/Stop (also core locations, as applicable) Measure the two edges of the pavement at start and stop of each day (4 point measurements)

16 Intelligent Compaction Did we meet the Spec? Percent Coverage Daily Coverage, Project Coverage 100% payment for Project Percent Coverage >70% Instrumented Roller Failure Notify MnDOT of roller issues, failure

17 Intelligent Compaction What did we get out of this? Instant feedback on the rollers Mapping Temperature Pass Count Detail

18 Intelligent Compaction Instant feedback on the rollers Mapping Temperature What did we get out of this? Temperature Map

19 Intelligent Compaction What did we get out of this? Delayed Feedback on the Mat Requires processing VETA

20 Delayed Feedback on Mat - What Am I looking For? Correlations, Relationships: Density and Mat Temperature Density and Roller Speed Speed and Temperature Pass Count and Density Any relationship that can be modified, adjusted for better performance. Indicators (ahead of the cores) that tell us that the mat mignt not be properly compacted.

21 Delayed Feedback on Mat Day xx cosnsitent core density Day xx irregular core density Does IC / can IC tell us why?

22 Delayed Feedback on Mat First Lift Good Day - Summary Other Information: All IR DD158 Sakai Hamm IR DD138 Tons Paved Date Cvrg, 4+ pass Jul Pass Ct. Speed Temp Temp Range Avg Wind CMV n/a n/a mph Bad Day - Summary Other Information: All IR DD158 Sakai Hamm IR DD138 Tons Paved Date Cvrg, 2+ pass Jul Pass Ct Speed Temp Temp Range Avg Wind CMV - n/a n/a mph Difference (good-bad) Other Information: All IR DD158 Sakai Hamm IR DD138 Tons Paved Cvrg, 4+ pass Pass Ct. Speed Temp Temp Range Avg Wind CMV n/a n/a mph

23 Delayed Feedback on Mat Second Lift Good Day - Summary (EB only, this was and EB/WB day) Other Information: All IR DD158 Sakai Hamm IR DD138 Tons Paved Date Cvrg, 2+ pass Jul Pass Ct Speed *2.7 & 4.7 populations Temp Temp Range Avg Wind CMV - n/a n/a mph Bad Day - Summary Other Information: All IR DD158 Sakai Hamm IR DD138 Tons Paved Date Cvrg, 4+ pass Jul x Pass Ct. Speed Temp Temp Range Avg Wind CMV n/a n/a mph Difference (good-bad) Other Information: All IR DD158 Sakai Hamm IR DD138 Tons Paved Cvrg, 4+ pass Pass Ct. Speed Temp Temp Range Avg Wind CMV n/a n/a mph

24 Correlations, Relationships: Average Roller Speed Breakdown (S) 2-Saka (R) 3-Hamm (R) 4-Finish (S) 2.2

25 Correlations, Relationships: 240 Average Roller Temperatures Improvement: need to be able to look at data over the course of the day as it progresses over the day Breakdown (S) 2-Sakai (R) 3-Hamm (R) 4-Finish (S) 100

26 Vision Link vs. Veta What we can get out of each: 7/10/2015 temperature Breakdown Roller (asset #1863)

27 Intelligent Compaction What do we get out of it? Contractors: How to make the data better Set up actual temperature spreads on machines Set up actual pass counts on machines Turn off the display s Mapping feature when not paving

28 Delayed Feedback on Mat - Owners: What is still missing? The random bad core day. Why? Map the core locations The last two lots of the day failed, Why? What changed, what s different? Need a daily report, over time not summary

29 Acknowledgements: TRIMBLE: MICKEY KOCEMBA & JIM LINN MNDOT IC : REBECCA EMBACHER & STAFF MNDOT - D6: DAN PIRKL, PROJECT ENGINEER, AND DAN KOPISCHKE, LEAD INSPECTOR ULLAND BROTHERS: CREW AND MANAGEMENT

30 4 Thanks for your Participation Please complete the evaluation to provide your feedback on this session and suggest topics for future events. Remember to mark these upcoming events on your calendar! March 7-11,