subsidence
a sinking or currving of a area of land.
Issues
1.)Subsidence can cause damage to roads, railroads, and other transportation.
2.)Subsidence can cause damages to privet and public property.
where? how?
subsidence can happen anywhere, but it mostly happens in south London. subsidence is also an issue in league city.
subsidence is caused by large trees sucking water out of the ground and pumping water and oil out of the ground.
Negative effects on the enviorment
prevent subsidence
1.) avoid putting large trees next to buildings and houses
2.) replace the water pumped out of the ground with soil (my solution)
who are affected by subsidence?
work sited
http://www3.nd.edu/~concrete/1999_duzce_earthquake_reconnaissance/liq_set_sub.html
https://www.youtube.com/watch?v=1mCDnxiwHmY
http://www.budgetwaterproofinginc.com/piering-stabilization.php
http://www.moneysupermarket.com/home-insurance/subsidence-insurance/
http://www.geotimes.org/july08/article.html?id=nn_arizona.html
http://www.financial-ombudsman.org.uk/publications/technical_notes/building-subsidence.htm