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Method and apparatus for consolidating earth strata

  • US 6,991,406 B2
  • Filed: 12/02/2003
  • Issued: 01/31/2006
  • Est. Priority Date: 10/04/2000
  • Status: Expired due to Fees
First Claim
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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:

  • 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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