1 / 6

The “Sinking” of Venice: Subsidence

The “Sinking” of Venice: Subsidence. Joshua Slater. Subsidence. A sinking or settling of earth’s surface Natural Earthquakes Volcanic activity Solution of limestone Man-induced Fluid extraction Mining Loose sediment. Mitigation anticipate monitor, restrict act. fluid injection

JasminFlorian
Télécharger la présentation

The “Sinking” of Venice: Subsidence

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. The “Sinking” of Venice: Subsidence Joshua Slater

  2. Subsidence • A sinking or settling of earth’s surface • Natural • Earthquakes • Volcanic activity • Solution of limestone • Man-induced • Fluid extraction • Mining • Loose sediment

  3. Mitigation anticipate monitor, restrict act. fluid injection import surface water pillars in mines Problems coastal & river areas drainage paths drainage devices sewers, canals irreversible

  4. Venice, Italy

  5. Venice (cont.) • Built - coastal marshes • ~10 ft. since founded • 1ft./century • “aqua alta” • causes • diverted rivers • natural gas • ~20,000 wells • rising sea level

  6. Mitigation closed wells aqueduct moveable barriers Still irreversible Venice (cont.)

More Related