CA2142812A1 - Method and apparatus for continuous mixing and injection of foamed cement grout - Google Patents

Method and apparatus for continuous mixing and injection of foamed cement grout

Info

Publication number
CA2142812A1
CA2142812A1 CA002142812A CA2142812A CA2142812A1 CA 2142812 A1 CA2142812 A1 CA 2142812A1 CA 002142812 A CA002142812 A CA 002142812A CA 2142812 A CA2142812 A CA 2142812A CA 2142812 A1 CA2142812 A1 CA 2142812A1
Authority
CA
Canada
Prior art keywords
foam
injection
pump
grout
continuous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002142812A
Other languages
French (fr)
Other versions
CA2142812C (en
Inventor
Patrick J. Stephens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority claimed from PCT/US1993/007593 external-priority patent/WO1994004331A1/en
Publication of CA2142812A1 publication Critical patent/CA2142812A1/en
Application granted granted Critical
Publication of CA2142812C publication Critical patent/CA2142812C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

An apparatus and method for the continuous generation and placement of a foamed cement grout. The assembly is mounted on a fixed or mobile frame. There is a continuous foam generator (90), and this supplies finished foam to an intake port (148) of a screw-type, positive-displacement pump (90). Cement slurry is also supplied to the intake portion (118) of the pump, and this is mixed with the foam in the body of the pump and discharged from this through a conduit to the injection site on a continuous basis. The ratios of foam and slurry can be adjusted on a continuous basis to compensate for variations in grout quality which are observed at the injection site. The assembly is also provided with an onboard power generator and water pump for flushing the grout out of the injection lines.
CA002142812A 1992-08-24 1993-08-13 Method and apparatus for continuous mixing and injection of foamed cement grout Expired - Fee Related CA2142812C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US93442192A 1992-08-24 1992-08-24
US07/934,421 1992-08-24
PCT/US1993/007593 WO1994004331A1 (en) 1992-08-24 1993-08-13 Method and apparatus for continuous mixing and injection of foamed cement grout

Publications (2)

Publication Number Publication Date
CA2142812A1 true CA2142812A1 (en) 1994-03-03
CA2142812C CA2142812C (en) 2005-10-04

Family

ID=25479629

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002142812A Expired - Fee Related CA2142812C (en) 1992-08-24 1993-08-13 Method and apparatus for continuous mixing and injection of foamed cement grout

Country Status (1)

Country Link
CA (1) CA2142812C (en)

Also Published As

Publication number Publication date
CA2142812C (en) 2005-10-04

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed