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 groutInfo
- 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
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.
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) |
-
1993
- 1993-08-13 CA CA002142812A patent/CA2142812C/en not_active Expired - Fee Related
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 |