| Chemical Grouting |
 |
- For lagging operation
- Support of footing
- Grouted tunnel support
- Grouted cut-off wall
- Grouted pipeline support
|
|
- Permeability
- Microstratigraphy
- Groundwater
- Porosity
|
- Define grout pipe layout plan
- Develop injection staging and sequencing
plan
- Perform grout mixing and injection
work
- Make injection process measurements
(QC)
- Perform post-injection evaluation
testing (QA)
|
- Total grout
volume at each grout port
- Injection
flow rate vs. time
- Injection
pressure vs. time
- Microseismic
(acoustic) emissions
- Laboratory
injection tests
|
Performed to establish the location and boundaries of the grout,
and the properties of the grouted soil.
- Permeability
- Inspection
Pits
- Pressuremeter
Testing (PMT)
- Standard
Penetration Testing (SPT)
- Reinjection
Testing
- Radar Profiling
- Seismic Velocity
(shear wave) Profiling
|
- Sodium Silicates
(GELOC-4)
- Acrylates
(AC-400)
- Acrylamides
(AM-9, discontinued)
- Polyurethanes
(TACCS)
- MC-Silicates
|
- Fracturing
the core
- Plugging existing
drains
|
|
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