1 / 12

DAMS

By Colten Parr, Meghan Ryan, and Jamie Schroeder. DAMS. What Is a Dam?. Barrier constructed to contain water flow Sometimes can generate electricity Promotes irrigation Controls flooding in local areas. How Does a Dam Work?. Dams are often triangular for strength

zihna
Télécharger la présentation

DAMS

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. By Colten Parr, Meghan Ryan, and Jamie Schroeder DAMS

  2. What Is a Dam? • Barrier constructed to contain water flow • Sometimes can generate electricity • Promotes irrigation • Controls flooding in local areas

  3. How Does a Dam Work? • Dams are often triangular for strength • Giant wall withstands pressure • Excess water stored, released when needed • Locks and gates contain water sometimes

  4. Requirements of a Dam • Dams must be water tight • Must have ample strength • Ability to release certain water amounts • Capacity to contain large quantities

  5. Benefits of Dams • Store flood water for human usage • 10% of irrigation water from dams • Navigation occurs on dam water • Dam water is good for recreation

  6. Hydroelectric Dams • Water travels to “powerhouse” near dam • Water then spins turbines repeatedly • Electricity is created cleanly and resourcefully

  7. Gravity Dams • Use gravity to advantage • Heavy materials push down • Water pressure doesn’t do much

  8. Arch Dams • Notches cut in stonewalls • Curved arch placed in notches • Water pushes the arch into notches

  9. Buttress Dams • Water pushes against the dam wall • Supports push back • The buttresses prevent movement

  10. Embankment Dams • Entirely made of clay and earth • Water resistant soils are specially placed • Dam keeps the water in place

  11. Impact on Environment • Environmentalists hate continued use of dams • Dams interfere with natural processes • Different fish species are affected • Minerals or extra salts may present

  12. References • https://www.llnl.gov/str/June07/gifs/dam1.gif • http://www.cromwell.org.nz/aerial_photos/images/Clyde%20Dam_jpg.jpg • http://www.fema.gov/hazard/damfailure/benefits.shtm • http://www.fema.gov/hazard/damfailure/index.shtm • http://science.jrank.org/pages/1942/Dams-Impact-dams.html • http://www.pbs.org/wgbh/buildingbig/dam/index.html • http://idahoptv.org/dialogue4kids/season4/dams/facts.cfm • http://en.wikipedia.org/wiki/Environmental_impacts_of_dams#Impact_above_dam • http://www.bpa.gov/corporate/BPANews/Library/images/Dams/ • http://www.wisegeek.com/how-do-dams-work.htm • http://members.optusnet.com.au/~engineeringgeologist/page5.html • http://www.ussdams.org/howdam.html

More Related