Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1996-11-13
1999-02-09
Melius, Terry Lee
Hydraulic and earth engineering
Earth treatment or control
Chemical
405258, E02D 312
Patent
active
058685251
ABSTRACT:
To protect ground composed of loose sand or sandy soil, and structures constructed thereon against seismic liquefaction disasters, said ground is improved and reinforced by a four-stage method. At the first stage, a specially formulated mortar impregnating material is injected by a specific impregnating machine through a given array of injection points into the ground to achieve a first effect by the first impregnation by consolidation. At the second stage, an injection pipe having a distal penetrating end unit is forced or driven into the ground to obtain pile-like compression effect. At the third stage, a specially formulated cement impregnating material is injected into the ground to obtain a third or consolidation effect. At the fourth stage, the impregnation of the cement material under pressure causes soil particles to be solidified by the penetration thereof.
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Hartmann Gary S.
Melius Terry Lee
Takao Enterprise Co., Ltd.
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