Sinkholes In Illinois
An old stone arch tunnel that was once part of the Star Union brewery in Peru has been uncovered after two sinkholes caved in.
Two sinkholes caved recently in Peru, Illinois. Only recently did they discover an old stone arch tunnel discovered from the collapse. The neat part is that the tunnel could have been for prohibition in the 1900's. Or the brewery could have been for waste.
The sinkholes started and another opened up. Sinkholes are rare in Illinois so it will be interesting to see what kind of remediation plan that they will recommend. Will they recommend grouting?
Sinkhole Repair
When a sinkhole occurs your foundation typically is unstable and soil needs to be stabilized. Florida Foundation Repair shows the different methods used to repair you home. Grouting is when the repair companies install injection points all around the perimeter of your home. The grout truck travels around the home to inject pressurized grout mix underneath the foundation to fill in the soils.
Chemical Grouting: Chemical grouting is like adding an additional coat to the grouting to repair a home with loose soils near the surface of the house. Chemical grouting utilizes an advanced polymer substance that fills the sinkhole and then hardens. Chemical Grouting gives long-term stability to the area affected by sinkholes.
Another method in addition to the repair is something called underpinning. Think of it like a "house on stilts." Underpinning attaches beams to the perimeter of the home to take the weight of the home off the soils and on to the more solid bedrock. Underpins are typically warrantied. Underpinning can be done on the permiter and the interior. Interior underpins are especially needed if the interior floor elevation is way out of tolerance.
Other Links:
http://ga.water.usgs.gov/edu/earthgwsinkholes.html, http://ga.water.usgs.gov/edu/earthgwsinkholes.html, http://ga.water.usgs.gov/edu/earthgwsinkholes.html
http://fcit.usf.edu/florida/maps/galleries/sinkholes/index.php
http://news.nationalgeographic.com/2010/06/photogalleries/100604-sinkhole-pictures-around-the-world-guatemala-city/, http://news.nationalgeographic.com/2010/06/photogalleries/100604-sinkhole-pictures-around-the-world-guatemala-city/, http://news.nationalgeographic.com/2010/06/photogalleries/100604-sinkhole-pictures-around-the-world-guatemala-city/
http://www.swfwmd.state.fl.us/hydrology/sinkholes/, http://www.swfwmd.state.fl.us/hydrology/sinkholes/, http://www.swfwmd.state.fl.us/hydrology/sinkholes/