1 / 17

Engineering Surveys & KGPS

Learn about the use of KGPS in engineering surveys, dredge measurement, payment surveys, and beach profile surveys for construction measurement. Explore applications, examples, and benefits in regional sediment management projects.

zeki
Télécharger la présentation

Engineering Surveys & KGPS

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. Engineering Surveys & KGPS

  2. Outline • Problem Example • Applications / uses of KGPS • Project Example

  3. Inland Waterways Red > 100M tons Green 20M – 100M tons Blue < 20M tons ~ 15,000 miles

  4. Navigation Channel DredgingEngineering & Construction Applications Dredge“Stuyvesant”

  5. Dredge Payment Surveys DREDGE PAYMENT SURVEYS Cross-sections spaced 100 ft or 200 ft C/C Sections must extend outside channel toe to fully develop side slope (150 to 200 ft typical) 40x300 ft channel

  6. Dredge Measurement & Payment Survey TIN Volume computations 3-D Model

  7. Dredged Material Placement Area Offshore Submergent Disposal Area Surveys Emergent or Upland Disposal Area Construction Surveys Tampa Bay

  8. Beach Profile SurveysConstruction Measurement & Payment Ft Pierce, Florida Jacksonville District Control Baseline Beach profile lines spaced 200-500 ft c/c (typical) Typical disparity between topo and acoustic surveys

  9. Topo Profile Hydro Profile Rod & Transit and RTK Techniques vertical accuracy: +/-1 cm to +/- 10 cm horizontal accuracy: 0.1 to 3 meters RMS spatial resolution: typically shore-normal lines 300 m (1000 ft) apart positioning system: ranging/ETS relative to established benchmarks minimum crew: 2 cost: about $1000/Km ($1600/mile) of beach assuming 300-m profile spacing

  10. Beach RenourishmentTypical Section for Construction Measurement & Payment

  11. Jetty & Breakwater Surveys & Cross-Sections Jetty control baseline Hubs set 25 to 50 ft C/C Topo/hydro sections run 25 to 50 ft C/C

  12. pipeline Niagara River 0 m 3 m 6 m 9 m 12 m 15 m depth in meters Joint Airborne Lidar Bathymetry Technical Center of Expertise

  13. Inland Electronic Navigational Chart • Electronic Chart Data benefiting safety of navigation • Inland • Coastal

  14. Hydrographic Surveys of Shallow Wetland Areas

  15. KGPS Uses in R&D Obtain basic hydrography for design guidance of depth & width of coastal navigation channels Use of numerically derived risk-based probabilistic channel sizing … reduce over-conservative channel design

  16. Project Example

  17. Regional Sediment Management

More Related