1 / 15

Geotechnical Investigation NCTC Stormwater Management Pond

Geotechnical Investigation NCTC Stormwater Management Pond. Actual Quotes Regarding Geophysical Survey Results. What do you call this stuff, Voodoo Engineering? Although I don’t know what it all means, the sections look pretty! So what color is bad, red or blue?

rigel-cervantes
Download Presentation

Geotechnical Investigation NCTC Stormwater Management Pond

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. Geotechnical Investigation NCTC Stormwater Management Pond

  2. Actual Quotes Regarding Geophysical Survey Results • What do you call this stuff, Voodoo Engineering? • Although I don’t know what it all means, the sections look pretty! • So what color is bad, red or blue? • I like the colored pictures more than the engineering technical mumbo-jumbo in the report.

  3. SCOPE OF WORK • Limited Geophysical Study • Air-Track Probe Investigation

  4. SITE PLAN

  5. SITE HISTORY • Previously filled sinkholes (concrete, soil and rock) • Ravelling and subsidence continuing of sinkholes GEOLOGIC SETTING • Conococheaque formation of Upper Cambrian Age

  6. FIELD INVESTIGATION • Phase 1 – Electrical Resistivity Imaging • Phase 2 – Air-track Probes

  7. SITE INVESTIGATION LAYOUT

  8. 2-D RESISTIVITY SECTIONS

  9. 2-D RESISTIVITY SECTIONS

  10. 2-D RESISTIVITY SECTIONS

  11. ATP LOG

  12. SITE COMPILATION (Swiss Cheese)

  13. RECOMMENDATIONS • Two options: • Repair existing sinkholes with a reverse graded filter and a clay cap. Risk of future maintenance costs associated with any additional sinkholes that may develop beyond the repaired area. • Repair existing sinkholes as noted above and install a geosynthetic liner. Best long-term solution.

  14. GEOPHYSICAL SURVEYS IN KARST TERRAIN

More Related