4 ms·
This is how it used to be done in parts of Cheshire, which had the interesting effect of leaving large voids under parts of some towns and consequent subsidence
by growlist 8y ago
This is how it used to be done in parts of Cheshire, which had the interesting effect of leaving large voids under parts of some towns and consequent subsidence. The solution was to effectively underpin whole areas by pumping in massive quantities of grout (a £28m job in y2k) whilst simultaneously pumping out the brine.
- slavik81 8y agoThe Lake Peigneur accident is an example of this happening very, very quickly. It's quite a thing to see: https://youtu.be/3cXnxGIDhOA https://youtu.be/3cXnxGIDhOA From Wikipedia: > On Thursday, November 20, 1980, an oil rig contracted by Texaco accidentally drilled into the Diamond Crystal Salt Company salt mine under the lake. [....] The resultant whirlpool sucked in the drilling platform, eleven barges, many trees and 65 acres (26 ha) of the surrounding terrain. > The backwards flow of the normally outflowing Delcambre Canal temporarily created the biggest waterfall in Louisiana.