Hydraulic and earth engineering – Earth treatment or control – Ground stabilization or reinforcement
Reexamination Certificate
2007-03-20
2007-03-20
Katcheves, Basil (Department: 3635)
Hydraulic and earth engineering
Earth treatment or control
Ground stabilization or reinforcement
Reexamination Certificate
active
11297376
ABSTRACT:
A system for preventing seismic liquefaction of the ground in an urban area built on reclaimed land consisting of a loose fine grained layer vulnerable to liquefaction underlain with a soft cohesive layer liable to uneven settlement. The system includes a plurality of vertically-extending wells with submerged pumps which pump pore water out of the loose layer, creating pore voids therein. An air-tight tank pressurizes the pumped pore water and, using an air compressor, pushes the water into a deep layer below the cohesive layer. A regulating receptacle injects a tap water mixture to fill the pore voids in the loose layer, with the mixture reducing the degree of pore water saturation therein, preventing seismic liquefaction due to earthquake.
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Jacobson & Holman PLLC
Katcheves Basil
Spahn Gay Ann
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