Open Closing in a 6 days
BBV Sublot 1B Tunnel Grout Treatment
Descriptions
"Ground Treatment "
The SC (Subcontractor) will assess the findings of the probe hole investigation and will develop the
grout treatment strategy to be followed with a scope to minimize any excess water ingress during CP
excavation and improve the ground stability.
Grouting operations will include stage permeation grouting on max 1m steps, with the use of packers.
Subcontractor based on ground and ground-water conditions as revealed from ground investigation
(probe holes) shall develop the grouting strategy. The strategy will include as a minimum but not
exclusively the following:
• A grouting pattern of primary and secondary on the periphery of CP profile
• Drilling diameter, orientation, and lengths of each grouting hole
• Bottom-up grouting stages with the use of packers. The grouting stages should not exceed the
length of 1m.
• In case required (unstable ground) Subcontractor may need to make use of a tube a
manchette TAM (sleeve pipes) system to perform the grouting. In this case the strategy should
be developed accordingly.
• Mix design(s) of the grout injection
• Max Pressure and max Volume criteria for stopping each grouting stage
• Tertiary drilling holes in case primary and secondary do not reach the target criteria.
• As built records grouting locations lengths stages grout consumptions and max pressure. "
Timeline
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Tender Regions
CPV Codes
44831400 - Grout
45262340 - Grouting work
Keywords
grout
cement grout
tile grout
masonry grout
injection grout
repair grout
floor grout
wall grout
structural grout
sealant grout
grouting work
slurry injection
cement injection
soil stabilization injection
pressure grouting
structural crack filling
foundation grout application
void filling grouting
subterranean grout work
injection remediation
Tender Lot Details
2 Tender Lots
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