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Construction Automation A Six Year Plan in Development

Construction Automation A Six Year Plan in Development. Ron Singh. Chief of Surveys Geometronics Manager. Design to Dozer August, 2010. Engineering Automation. Key Concepts for a 25 Year Time Horizon. Disruptive Technologies.

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Construction Automation A Six Year Plan in Development

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  1. Construction AutomationA Six Year Plan in Development Ron Singh Chief of Surveys Geometronics Manager Design to Dozer August, 2010

  2. Engineering Automation Key Concepts for a 25 Year Time Horizon Design to Dozer – Ron Singh

  3. Disruptive Technologies A “disruptive technology” is one that requires changes to long standing established processes. Design to Dozer – Ron Singh

  4. Reactive Project-centric Approach Survey Maintain Design Construct Design to Dozer – Ron Singh

  5. Proactive Data-centric Approach Construct Maintain Design Survey Design to Dozer – Ron Singh

  6. Engineering Automation Survey Automation Design Automation Construction Automation Design to Dozer – Ron Singh

  7. Today’s Topics… Engineering Automation Survey Automation Design Automation Construction Automation Design to Dozer – Ron Singh

  8. Today’s Topics… Engineering Automation Survey Automation Design Automation Construction Automation Site Monitoring Surveying Material Certification Inspection Machine Automation Positioning Design to Dozer – Ron Singh

  9. Major Components of Construction Automation • Inspection Tools • Enhanced use of GPS • Material Delivery and Certification • Remote Construction Site Monitoring • Connected Site • Machine Automation • Post Construction Surveys Design to Dozer – Ron Singh

  10. Moving On… Engineering Automation Survey Automation Design Automation Construction Automation Machine Control and Guidance Systems Site Monitoring Surveying Material Certification Inspection Machine Automation Positioning Design to Dozer – Ron Singh

  11. For The Purpose of This Presentation… A Machine Guidance system will be considered to be one that uses automation to provide the equipment operator a visual indicator of the position of the cutting edge (blade, bucket, screed, etc) relative to the design surface being constructed. Design to Dozer – Ron Singh

  12. For The Purpose Of This Presentation… A Machine Control system will be one where the cutting edge of the equipment is fully controlled by automation. The system is connected to and controls the hydraulics while the operator simply drives the equipment and manages the automation. Design to Dozer – Ron Singh

  13. 3 Components of Machine Control • The Design and Resulting Data • The Machine w/Computer, Sensors, Hydraulic Control, and Radio • The Positioning System – GPS, TPS, Laser, or combination Design to Dozer – Ron Singh

  14. Guidance Systems • Provides the interface between engineering design and the machine operator Design to Dozer – Ron Singh

  15. Types of Guidance Systems • Stakes • String Lines • Sonic Sensors • Lasers • GPS • Total Stations • GPS w/Lasers Design to Dozer – Ron Singh

  16. Guidance By GPS • GPS based machine guidance • GPS provides near exact position of vehicle in “real time” • Cab mounted display indicates position of machine relative to design anywhere on the surface • Equipment operator controls cutting edge Design to Dozer – Ron Singh

  17. Typical Display Design to Dozer – Ron Singh

  18. Control By GPS • GPS provides near exact position of vehicle in “real time” • Position of the cutting edge is computed • The hydraulics moves the cutting edge accordingly to match the design surface Design to Dozer – Ron Singh

  19. Guidance/Control by GPS GPS Grading +/- 30 mm or 0.1’ Original Surface Final Surface Generally Not By GPS Design to Dozer – Ron Singh

  20. Control by Laser Augmented GPS GPS (RTK) derived elevations are: • Somewhat erratic • Dependant upon a variety of factors such as satellite geometry, local deflection of the vertical, etc. • Limited to an accuracy of a few centimeters Design to Dozer – Ron Singh

  21. Control by Laser Augmented GPS Laser augmented GPS systems delivers a few millimeters of vertical accuracy using conventional lasers capable of working on an inclined plane Design to Dozer – Ron Singh

  22. Control by Total Station Original Surface Final Surface Total Station Grading +/- 5mm or 0.02’ Design to Dozer – Ron Singh

  23. Control by Total Station • Started in the early 1990’s with robotic motorized total stations that could track a prism mounted on a machine • Could position the prism to high accuracy - equivalent to string lines and lasers Design to Dozer – Ron Singh

  24. Control by Total Station • Information from the prism position could be sent to the machine, which would adjust the hydraulics accordingly. Design to Dozer – Ron Singh

  25. Machine Control The Ultimate System: • No stakes required • No grade checker required • Records data for quality control • Records data for volume computation • Data could be transmitted to engineer, inspector, or surveyor for “real time” checks Design to Dozer – Ron Singh

  26. Bulk Excavating – Scrapers/Dozers Design to Dozer – Ron Singh

  27. Bulk Excavating – Dozers Design to Dozer – Ron Singh

  28. Concrete Paving Design to Dozer – Ron Singh

  29. Trimming Design to Dozer – Ron Singh

  30. Excavating – Shaping & Compacting Design to Dozer – Ron Singh

  31. Underwater – Riprap Placement Design to Dozer – Ron Singh

  32. Grading Design to Dozer – Ron Singh

  33. Grading Design to Dozer – Ron Singh

  34. Trench Excavation Design to Dozer – Ron Singh

  35. Milling Design to Dozer – Ron Singh

  36. Asphalt Paving Design to Dozer – Ron Singh

  37. Barrier Design to Dozer – Ron Singh

  38. Curbs and Sidewalks Design to Dozer – Ron Singh

  39. The Emerging Role of Operating Engineers • Requires education/training relating to new systems • Pre-qualification or certification • Clearly defined role in project specifications Design to Dozer – Ron Singh

  40. The Role of the Design Engineer • 3D coordinate correct designs • Build-able and not just bid-able plans • Complete, reliable, and construct-able digital data – less reliance on “on the grade” design • Available on very short notice for design changes Design to Dozer – Ron Singh

  41. The Role of the Surveyor • Establishment of horizontal and vertical project control • Data management • Acquiring and validating design DTM • Converting DTM to exchange format • Providing exchange format data to contractor Design to Dozer – Ron Singh

  42. The Role of the Surveyor • Quality assurance • Validating TIN produced by exchange format data • Re-measure or validate grade • No longer available for design changes • Post Construction Surveys Design to Dozer – Ron Singh

  43. The Role of the Inspector • Will continue as today… • With less support from surveyors • With diminished ability to check constructed elements for grade, alignment, or width • Will need additional technology to check stake-less construction Design to Dozer – Ron Singh

  44. Stay Tuned… Design to Dozer – Ron Singh

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