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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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Cofferdams and Seal Courses
JULY
1997
12-9
A review of contract provisions for water pollution control should be made before dewater-
ing operations start.
Sheet pilings are not watertight and minor leaks can be expected as the cofferdam is
dewatered. These leaks occur along the joints between adjacent sheets. Sawdust, cement, or
other material can be used to plug these, and this type of leak is ordinarily not a problem.
This is usually done by dropping the material into the water adjacent to the leaking sheets.
Flow through the leak carries the fine material to the problem area and seals the crack or
opening. A sump built into the surface of the seal would be helpful in keeping the work area
reasonably dry. Obviously, sumps should be located outside the footing limits.
Prior to proceeding with footing work, all high spots in the seal have to be removed. All
scum, laitence, and sediment must also be removed from the top of the seal. This work can
be very time consuming and expensive. It can be reduced significantly if care is taken when
the seal is placed.
Safety
Cofferdam work presents safety problems unique to this type of construction. Among them
are limited access, limited work areas, damp or wet footing, and deep excavations. Provi-
sions must be made for safe access in terms of adequate walkways, rails, ladders, or stairs
into and out of the lower levels.
The work may be within a waterway, in which case additional safety regulations may apply.
These would include provisions for .otation devices, boats, warning signals, and suitable
means for a rapid exit. The Construction Safety Orders should be consulted for specific
requirements.