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Disaster mitigation


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Disaster mitigation

  1. 1. Engineering prepared for disaster BY AGRATA SHUKLA ENGG.STUDENT
  2. 2. Role of computer in disaster management Computer-mediated communication in various forms is already being used in all phases of disaster management- -preparation, response, recovery, and long-term mitigation. However, to date wide area computer networks--particularly the Internet (the supernetwork of networks)--have been used only to a limited extent in disaster management and prevention. individuals who use Internet will become involved not only in disaster response and mitigation worldwide, but in the global community and consciousness that is the Internet.
  3. 3. Tecniques of disaster mitigation Geospatial tecniques ->TheRemote Sensing, Geographical Information System, Geodesy, Geophysics, etc may help us in our endeavor to minimize the destruction caused by these includes This tecniques has two parts 1. Short term response, recovery and rehabilitation 2.Long term response, recovery and rehabilitation.
  4. 4. The uncertainmonsoon windsmake the regionhighly prone tonaturaldisasters. Theregion being themost populousin the worldfurther add tothe damagecaused by thenatural Natural disaster mitigationdisasters.
  5. 5. Care taken 1. Landslide Hazard  By minimising the losses Zonation Methodology caused by landslides Mass Movement Model  It is necessary to model the process of the mass movement and analyse the slope stability Control measures  The other work such as stablisation of landslide through soil nailing technique is in progress.
  6. 6. What to do after disaster General Safety Tips Wear sturdy shoes when entering a building or walking through debris after a disaster. Carry a flashlight when entering dark buildings. Do not enter a building if the foundation has shifted or has been weakened. Do not demolish a building or house without professional help. Crews from the King County Public Works Department or licensed contractors can help you. Buildings must be declared safe before they can be entered
  7. 7. Engineer role in disasterPre-disaster Post -Disaster . Designing  Classifying damaged earthquake resistant structures structures.  ������ Proposing choice ������ Seismic of repair evaluation of building  methods and strengthening and its components.  techniques
  8. 8. Tsnaumi prevention The biblical catastrophe that we have witnessed after the recent earthquake and the tsunami that followed in Southeast Asia, could have been prevented to a great extend if there was in place a functional alert and communication system that would have in time alerted the populations of the affected countries.
  9. 9. Arrival ofTsunamiIn world This picture shows the earthquake epicenter
  10. 10. Earthquake prevention 1. Scientists are continuously thinking of ways to try and reduce earthquake power. Some are trying to lessen the friction between colliding plates Special instruments are now in existence to give warnings in California, Japan, and New Zealand Architects are also designing earthquake-proof buildings, constructing on rock instead of gravel, or on soft sand or clay Researchers are always trying to reduce the impact of earthquakes
  11. 11. The areasareMorroccoSouthernItxly Earth quake region
  12. 12. Prevention of volcanoCurrently, it is impossible to prevent a volcaniceruption, but it is possible to keep damage to aminimum. In 1973, citizens of Iceland poured coldwater onto flowing lava to slow it down, an act thathelped save the fishing port of Heimay. In Sicily, onMount Etna, engineers have blasted holes in thehard crust covering a lava flow using explosives. Thelava then turns to flow out through the holes insteadof swallowing villages in its original path.
  13. 13. This iscausedafterearthquake Volcano eruption