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Micro Piles |
Pressure Grouting |
Prestressed 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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1
2
CHAPTER
JULY
1997
CALTRANS FOUNDATION MANUAL
12-1
General
A cofferdam is a retaining structure, usually temporary in nature, which is used to support
the sides of deep excavations where water is present. These structures generally consist of:
(1) vertical sheet piling, (2) a bracing system composed of either wales and struts or
prestressed tiebacks, and (3) a bottom seal course if required to seal out water.
Cofferdams are used in situations where adjacent ground must be supported against
settlement or slides, and in construction of bridge piers and abutments in relatively shallow
water.
Contractor’s Responsibility
Cofferdams usually fall under the category of temporary features necessary to construct the
work. As such, the Contractor is responsible for the proper design, construction, mainte-
nance and removal of cofferdams. The Contractor is required to submit working drawings
to the Engineer for approval in accordance with Sections 5-1.02 and 19-3.03 of the Stan-
dard Specifications. The Contractor is also required to comply with the applicable sections
of the Construction Safety Orders (Section 1811) and the provisions of Section 6705 of the
Labor Code.
Cofferdams and
Seal Courses