Installation
General Concerns
q
Specifications sometimes require that tubing be snaked in trenches
to accommodate settlement. There is some question whether this
practice is necessary, however. This view holds that normal forces
acting on snaked tubing prevent it from slipping and therefore
snaking does nothing to accommodate settlement.
q
Use only deaired liquid in tubing. Keep the reservoir full to the
base of the overflow tube to keep air out of the system.
q
The reservoir should be on stable ground. If it is not, it will need
to be surveyed before every reading is taken.
q
Minimize unburied tubing to keep temperature constant.
1
Excavate trench from intended location of transducer to reading
station (on stable ground). Place 100 mm layer of fine sand on
bottom of trench. Place pneumatic settlement cell in vertical
orientation.
2
Backfill with wet sand. Connect settlement cell to reservoir and
test.
3
Cover tubing with 100 mm layer of fine sand. Fill remainder of
trench with selected fill. Obtain datum readings, then hand over
to client.
Rembco Geotechnical Contractors specializes in
slope stabilization,
soil nail wall,
foundation repair
and support,
grouting,
shoring,
micropile
construction,
rock drilling, and we remediate
sinkholes. We use a
problem-solving approach in the geotechnical portions of buildings, bridges, water plants, sewage plants, tunnels,
installing caisson bottom, and roads. We are experienced in these applications:
micro piles,
sinkhole repair,
permeation and
pressure
grouting,
soil nails,
cement grouting,
chemical grouting,
micropiles,
compaction grouting, and
rock anchors.
Rembco techniques apply when adding new structures: especially
rock anchor,
microfine cement,
soil nailing, and
micropile
installations for foundation support. Our specialties are
soil nails,
rock anchor,
chemical and
compaction grouting,
mini piles,
sinkhole repair,
micropiles, and
soil nailing.
