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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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JULY
1997
Footing Foundations
4-26
1) Excavate to a stratum that has sufficient bearing capacity, replace the removed
unsuitable material with Class C concrete, and then construct the footing at the
planned footing elevation.
2) If the over-excavation is relatively shallow, about one foot or so, replace the removed
unsuitable material with footing concrete placed monolithically with the footing.
3) Lower the footing to a stratum that has sufficient bearing capacity and increase the
height of the column or wall. This method may not be acceptable if the increase in
height necessitates redesign of the column or wall.
4) Increase the footing size so that the bearing pressure does not exceed the allowable
bearing capacity of the foundation material encountered at the planned footing
elevation. In addition, settlement must not exceed tolerable limits.
Although footing revisions are contemplated by the contract documents, footing revisions
made necessary due to unsuitable material encountered at the planned footing elevation
will require a change order.
The preferred method for compensating the Contractor for the cost of the corrective work is
by contract items at contract unit prices and is the specified method of payment for the
following revisions:
1) Raising the bottom of a spread footing above the elevation shown on the plans.
2) Lowering the bottom of a spread footing 2 feet or less below the elevation shown on the
plans.
3) Increasing or decreasing the thickness, or elimination of the entire seal course.
For other revisions, agreed price or force account methods should be used when the above
method is unsatisfactory as determined by the Engineer.
Safety
Any excavation in which there is a potential hazard of cave-in or moving ground requires a
protective earth retaining plan. Section 5-1.02 of the Standard Specifications requires the
Contractor to furnish a temporary earth retaining system plan to the Engineer for approval
prior to starting excavation. Also prior to beginning any excavation 5 feet or more in depth
into which a person is required to descend, the Contractor must first obtain a DOSH
excavation permit.