Initial impression is a not so "quick-sand" allegory is at work. Each swelling of the ground by groundwater saturation is followed by a subsidence as water retreats. This might explain the comments that things could move an inch one time or 6 feet another. It is a buoyancy issue--physics at work not a "dormant volcano". Larger and heavier objects such as "sewer pipes and garages sink" in such situations. Unlike clay, ash is impossible to compact as with traditional stabilization.
Seems the subdivision was built on an ash bed over shallow bedrock so it is easily saturated by water. The blaming it on a "dormant volcano headline" is a bit bogus especially including unrelated discussions about geysers and hot springs.
Seems the subdivision was built on an ash bed over shallow bedrock so it is easily saturated by water. The blaming it on a "dormant volcano headline" is a bit bogus especially including unrelated discussions about geysers and hot springs.
My solution is place electrodes around he structures and raise the temp to a level which vitrifies the ground. Yes you heard me-- turn it into glass. This technique is already being used to transmute radioactive soil into glass--immobilizing any radioactive minerals from migrating in ground water. Seems if you make glass columns down to the bedrock you take away the susceptibility of the buildings to rise and fall with groundwater changes. Ta Da Dah!
Eman
Eman
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