Methods of constructing subterranean storage cavities

摘要: 958,745. Soil stabilisation. CONTINENTAL OIL CO. Oct. 22, 1962 [Dec. 4, 1961], No. 39937/62. Heading E1F. [Also in Division F4] An underground storage chamber preferably for the of liquefied petroleum gas, is formed by producing earth one or more substantially horizontal, water impervious layers 18 freezing soil-stabilizing techniques, layer extending to a water-impervious, vertical continuous zone 20 which constitutes side walls when soil between and excavated. The horizontal are sinking boring tube 12 down required level pumping either fracturing fluid, soilstabilizing media, refrigerant out according condition soil. created use tubes 10.