Apparatus for sealing access holes to cavities within the earth
Ground water remediation control process
In-situ soil stabilization method and apparatus
Magma evacuation systems for the prevention of explosions...
Method and apparatus for preventing mud slides
Method for forming domes from subterranean diapiric material
Method for initiating in-situ vitrification using an impregnated
Method of isolating a nuclear reactor or other large structures
Method of preparing a foundation structure
Road snow melting system using a surface heating element
Thermal plasma conversion of local soils into construction mater
Thermal treatment wall