Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1979-10-15
1981-12-08
Corbin, David H.
Hydraulic and earth engineering
Earth treatment or control
Chemical
405240, 405248, E02D 518
Patent
active
043045073
ABSTRACT:
A method for producing a continuous wall is disclosed which comprises the steps of digging at least two holes in the ground, inserting into each of the holes a supporting means, supporting a continuous wall producing apparatus by the supporting means such that the continuous wall producing apparatus can be moved up and down along the supporting means serving as a guide, supplying highly pressurized water, the supporting means and pressurized air to the continuous wall producing apparatus, lowering the continuous wall producing apparatus, while forming a pressurized air zone in the ground and jetting highly pressurized water to dig the ground in a plate like form, and elevating the continuous wall producing apparatus while pouring a grout material into the dug out space thus formed.
An apparatus for producing a continuous wall in the ground which comprises a pair of special reducers, a connecting member or members, a first discharge orifice provided with the special reducer for effecting downward discharging, a second discharge orifice provided with said special reducer for effecting discharging along the length of the connecting member, and an air blow pipe provided with a multiplicity of small orifices, arranged above the connecting member or members is provided.
REFERENCES:
patent: 3645101 (1972-02-01), Sherard
patent: 3851490 (1974-12-01), Matsushita
patent: 4005582 (1977-02-01), Tamaro
patent: 4057969 (1977-11-01), Rochmann
patent: 4249836 (1981-02-01), Schmednecht
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