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Micro Piles |
Pressure Grouting |
Rock Anchors |
Permeation Grouting
Soil Nailing |
Compaction Grouting |
Micropiles |
Injection Grouting |
Chemical Grouting
Our
techniques apply when adding new structures:
especially
rock anchor,
microfine cement,
soil nailing,
micropile
installations for
foundation support.
We
specialize in
slope stabilization,
anchors,
permeation grouting,
foundation repair
and support,
grouting,
soil nails,
rock drilling,
micropile installations, and
sinkholes. We
use a
problem-solving approach geotechnical
architecture of buildings, bridges,
water plants, sewage plants, tunnels,
sinkholes,
caisson,
shoring,
underpinning,
agriculture, and
roads
construction. We
are experienced in these applications:
micro piles,
sinkhole repair,
permeation grouting, pressure
grout,
soil nails,
chemical grouting,
micropiles,
compaction grout, and
rock anchors.
Our specialties are
rock anchor,
acrylamide and
compaction grouting,
mini piles,
sinkhole repair,
micropiles,
acrylamide grouting, and
soil nailing.
We will continue to
dedicate ourselves to
excellence,
including
insurance mortgage, in our performance, in our
integrity, and in our relationships with our
customers. We will carefully weigh our
decisions, actions, and results to make sure
that we remain the most trusted name in the
geotechnical contracting industry. Please
visit our website
http://www.rembco.com/.
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Footing Foundations
JULY
1997
4-25
1) Under-excavate with mechanical equipment and hand excavate to bottom of footing.
2) Divert surface water away from the excavation.
3) Minimize exposure of the foundation material to the elements by constructing footings
as soon as possible after excavation.
Unsuitable Foundation Material
The Foundation Investigations Section should be contacted when the Engineer determines
that the undisturbed original material encountered at planned footing elevation is either
unsuitable or of a questionable nature.
If the Structure Representative is absolutely certain that the material encountered at the
planned footing elevation is unsuitable, then hand-excavating a small exploratory hole
would be advisable prior to contacting the Engineering Geologist. First, review the Log of
Test Borings to determine if the unsuitable material is shown but at a higher elevation. If
so, the anticipated suitable material may well be just below the excavated surface.
Simple tests that can be performed in the field are:
1) Penetration tests - granular soils
2) Finger tests - cohesive soils
3) Pocket penetrometer - cohesive soils
4) Rodding and probing
Note that these simple and expeditious tests give only an approximate evaluation of the soil
at or immediately below the surface. If the bearing capacity of the foundation material is
questionable for any reason, consult the Engineering Geologist.
The depth of any hand excavation should not exceed 2 feet, however, because lowering a
footing 2 feet or less is not considered a change in the plans or specifications. In any event,
the information obtained from the exploratory excavation will be useful in determining the
required footing modifications. The required footing modifications will be determined by
the Engineer in consultation with the Engineering Geologist, the Bridge Construction
Engineer, and the Project Designer.
Footing modifications normally entail one or more of the following procedures: