1 / 55

FWD Operations The Evolution of Total Quality Control Implementation The gambit for getting the best possible da

hartwell
Download Presentation

FWD Operations The Evolution of Total Quality Control Implementation The gambit for getting the best possible da

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. FWD Operations The Evolution of Total Quality Control Implementation ”The gambit for getting the best possible data”

    3. FWD Operations The Evolution of Total Quality Control Implementation The Gambit for getting the best possible data

    4. What are the pieces? FWD Operations FWD Calibrations FWD Maintenance FWD Data Collection FWD Data Review Quality Control Quality Assurance.

    5. What is the favorable position? “The best possible FWD data”

    6. What is it an FWD used for? Structural capacity - remaining life estimates Load transfer efficiency between PCC pavement joints Void detection in PCC pavements Network level pavement management Project level pavement investigations Many research applications.

    7. What is Total Quality Control? “The application of a systematic approach to provide Quality Control and Quality Assurance methods to FWD Operations” Systematic Approach Standard Operating Procedures ISO 9001

    8. What is FWD Quality Control? “A system implemented to provide for ensuring the maintenance of proper standards for FWD operations”

    9. What is FWD Quality Assurance? “A system to validate the application of the Quality Control Plan implemented”

    10. What are the components of TQC? Capacity Considerations Competency Completeness.

    11. Capacity - The required tools FWD Unit FWD Tow Vehicle Computers Software FWD Operator FWD Supplies Ancillary Equipment.

    12. Considerations FWD Maintenance FWD Calibrations Quality Control Operational Scheduling Budgeting Data Analysis Operational Safety.

    13. Competency? FWD Operator Training Standard Operating Procedures Operational Check Lists FWD Calibrations FWD Data Back-ups FWD Quality Assurance.

    14. Completeness FWD Data Reviews Quality Control Checks Operational Feedback Reports FWD Data Back-ups Quality Control Plans Quality Assurance Reviews.

    15. Where do we start ? “The late Colin Chapman of Lotus Formula-one fame once stated that the ideal F1 car should be one part that disintegrated as it crossed the finishing line to win the Grand Prix.”

    16. What we know ? “An FWD for arguments sake has 15,000 moving parts, all wearing and reacting against the forces of nature. If we built the FWD 99% perfect, 150 parts would probably fail. If we built it 99.9% perfect, 15 parts would probably fail” All this without applying any reasonable kind of quality control!

    17. The Reality of FWD life Even if an FWD were only one part it would still requires an operator Requires Vehicle, Fuel, Oil, Maintenance, Calibration and Parts Requires Traffic Control Requires Supervision Requires Data Interpretation Requires an Engineer.

    18. The Reality of TQC - Control Provides documented and implemented plans for all aspects of FWD operations Gives windows of opportunity to inspect and report during the course of operations Provides for error resolution and feedback Allowance for evolution and improvement of operations Provides for audit capabilities.

    19. Quality Control Plan Elements Provide a written and implemented Quality Control Plan to cover: Data collection Equipment Operator Training Operation of Data Collection Equipment Data Quality Control Equipment Calibration and Operational Checks.

    20. Quality Control Plan Elements - cont. Field and Office Review of Data Management, Checking and Processing of Data Participants Secure Data Storage and Backup Entry of Data into Processing Software or Data Base Execution of Data Quality Checks.

    21. Equipment Maintenance & Repair Routine Maintenance FWD Tow Vehicle Ancillary Equipment Follow Heavy Duty Usage Guidelines Provide for Non-routine Work Checking Temperature Sensors Equipment Problems/Repairs Safety & Accidents.

    23. FWD Operations Manual Provide Operations Manuals and Guidelines Provide Inspection Procedures Provide Testing Check Lists Provide Daily Progress Reports for all Operational Activities.

    24. Document Reference Manual Provide Operations Manuals and Guidelines.

    25. Field Testing Procedures Provide Background Details: Environmental Factors Pavement Temperature Gradient Measurements Pavement Discontinuities Variability in Pavement Structures Types of Deflection Tests Deflection Sensor Spacing Drop Height & Desired Loads.

    26. FWD Operator Field Measurements Provide Typical Testing Plans

    27. FWD Operator Field Measurements Provide Typical Testing Details

    28. Synthesis of Field Work Activity Task 1 Pre Transit FWD Inspections Task 2 Travel to Testing Site Task 3 Arrive at Test Sit Task 4 Begin FWD Testing Task 5 End FWD Testing Task 6 Pre Transit FWD inspections Task 7 Return to Office.

    29. Task 4 - Begin FWD Testing Wait for traffic control to get into position Condition Buffers for Pavement Type Align FWD according to pavement markings Set DMI Begin testing Keep detailed notes during the course of FWD testing on the Daily Progress Report.

    30. Data Acquisition & Handling Provide Comprehensive Instructions on Software set up Screen Dumps Program Schemas and Flow FWD Set-ups Measurements FAQ Common Errors & Troubleshooting

    31. Example Program Flow Schemas

    32. FAQ - Common Errors & Troubleshooting Provide for common errors and remedies Excess Vibration or Drift Non-Decreasing Deflections Excess Variation Roll Off Error Drop Timeout

    33. Provide Safety Information The weight may drop unexpectedly Hydraulic oil may leak at high pressure Hydraulic oil leakage may cause the load plate to “DROP” onto the ground Provide a few simple rules for the operator

    34. FWD Calibration Reference Calibration Relative Calibration Other Calibration Considerations Temperature Gradient Devices Surface and air Measuring Wheels DMI and GP PC Clocks - Remember Time Zones.

    35. Calibration Process Reference Calibration of FWD unit to known, or reference, standards Relative Comparison of FWD deflection sensors to one another Reference and relative calibration performed at the same time Relative can be performed on its own.

    36. FWD Calibration - cont.

    37. Frequency of Calibration Reference Once per year After equipment (load cell, deflection sensor, computer components, etc.) have been repaired or replaced Whenever data is suspect.

    38. Frequency of Calibration Relative Immediately after reference calibration AND………….. Once per month After deflection sensor(s) has been repaired or replaced After a period of equipment inactivity Prior to a major project Whenever data is suspect.

    39. FWD Data Review Provide Documented Methods to Catalog, Review and Backup Raw FWD Data Provide Documented Methods and or Software to View, Screen, Edit and Process Field Data Provide Documented Data File Format Schemas (Header Info & Data Blocks) Provide Feedback Reports and Data Resolution for FWD Operators

    40. Example Data Review Flow

    41. FWD Data Scanning Software Checks for Data Completeness Data Readability Conformance to Testing Requirements Generate output Files Summary Results of Checking Process

    42. Example Software Checks Start Time and Data File Naming Conventions Expected Records, Length, and Type Non Decreasing Deflections Deflector Ranges, Gains and Filtering Modes Unidentifiable Data Comments Checks

    43. Example Scanning Software

    44. Example LTPP IMS Table MON_DEFL_*

    45. Example QC Checks Peak deflection 5 -2032 microns (exclude 0) Deflection sensor gains .979 to 1.021 Test station -31 to 335 meters Crack width, Null, 1 to 25 mm Pavement surface temperature -30 to 76 °C Air temperature -30 to 50 °C.

    46. Example QC Checks - Cont. Non-null restriction vs. required field check Minimum of 5 peak deflection values Minimum of 2 temperature measurement depths and values One record per test date.

    47. Information Resources Tow Vehicle Maintenance Manuals FWD Manufactures Manuals PAVER Pavement Condition Index Field Manuals LTPP FWD Manual Ver 3.1 FWD User Group- Consultants LTPP Distress Identification Manual Manual for Uniform Traffic Control Devices Internet i.e. http://www.fwd-user.com.

    48. Typical Offline FWD Data Original FWD field data file + time history FWD field data paper print out Subsurface temperature measurement Relative calibration data file and print out Reference calibration data file and print out Daily FWD operator field log FWD equipment maintenance log.

    49. Quality Assurance Objectives The objective of Quality Assurance is to maintain by periodic review the integrity of operations provided for by the Quality Control Plan by assessing aspects of FWD operations.

    50. Quality Assurance Requirements Provide a written and implemented Quality Assurance Plan to cover: Compliance with Established Guidelines and Protocols Adequacy of Data Management and Equipment Management Activities Review Quality Control Procedures Status of Data Processing Operations Needed Changes.

    51. Quality Assurance Requirements Observation of the Performance of Field Data Collection Office Inspections Equipment Inspections Checks on Samples of Data and Information Interviews & Meetings with Management Personnel Written Audit Reports.

    52. Example QA Check List

    53. Benefits of TQC Provides Guidelines for Calibration of testing equipment and operations Provides a benchmark performance standard for equipment and operations Minimizes equipment variability Promotes greater confidence in FWD testing and resulting pavement design Minimizes risk of errant pavement rehabilitation designs.

    54. TQC is an Attainable Goal “After which, life is just plain Sailing”

More Related