Method and apparatus for consolidating earth strata
First Claim
1. A method for consolidating an earth stratum situated in a subgrade by withdrawing water from the subgrade comprising the steps of:
- a) placing a plurality of generally vertically positioned drains in the earth stratum;
b) connecting the drains with a generally horizontally extended drain to provide water transfer between them;
c) forming an air sealing layer directly over the generally horizontal drain and the closing of the surface of the soil;
d) connecting the generally horizontal drain to a pump; and
e) discharging fluid from the generally horizontal drain using the pump.
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Accused Products
Abstract
Method for consolidating an earth stratum situated in a subgrade by withdrawing water that is present in there from it, comprising the stepwise arrangement from the surface of the soil, at some depth, of vertical drain, such as drains, in the earth stratum, the arrangement of horizontal drainage provided by a drainage pipe or pipes, in the upper area of the earth stratum and connecting them to the vertical drain for water transfer between them, the arrangement of an air sealing layer directly over the horizontal drainage pipes and the closing of the surface of the soil, as well as the connection of the horizontal drainage pipes to a pump for discharge of the water.
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Citations
23 Claims
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1. A method for consolidating an earth stratum situated in a subgrade by withdrawing water from the subgrade comprising the steps of:
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a) placing a plurality of generally vertically positioned drains in the earth stratum;
b) connecting the drains with a generally horizontally extended drain to provide water transfer between them;
c) forming an air sealing layer directly over the generally horizontal drain and the closing of the surface of the soil;
d) connecting the generally horizontal drain to a pump; and
e) discharging fluid from the generally horizontal drain using the pump. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A soil consolidation apparatus for consolidating a selected earth stratum, comprising:
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a) a movable carriage;
b) means for the stepwise supplying of vertical drains from a supply and driving each said drain into the earth stratum; and
c) means for supplying and laying a horizontal drain in which the horizontal drain is applied in fluid communication with upper ends of the supplied vertical drains. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for consolidating an earth stratum situated in a subgrade by withdrawing water from the subgrade comprising the steps of:
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a) placing a plurality of generally vertically positioned drains in the earth stratum;
b) connecting the drains with a generally horizontally extended drainpipe to provide water transfer between them;
c) forming an air sealing layer directly over the generally horizontal drain pipe and the closing of the surface of the soil;
d) connecting the generally horizontal drain pipe to a pump; and
e) discharging fluid from the generally horizontal drain pipe using the pump.
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23. A soil consolidation apparatus for consolidating a selected earth stratum, comprising:
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a) a movable carriage having a drive for driving the carriage over a ground surface;
b) means for making a trench from the ground surface down to at least the upper side of the earth stratum to be consolidated;
c) means for the stepwise supplying of vertical drains from a supply and driving each said drain into the earth stratum; and
d) means for supplying and laying a horizontal drain in which the horizontal drain is applied in fluid communication with upper ends of the supplied vertical drains.
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Specification