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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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Contract Administration
JULY
1997
CALTRANS FOUNDATION MANUAL
3-5
ITEM
REMINDER/STATEMENT
1
A reminder that Section 51-1.03 of the Standard Specifications reserves to the
Engineer the right to revise, as may be necessary to secure a satisfactory
foundation, the footing size and bottom of footing elevations shown on the
plans.
2
On projects involving seal courses, a reminder that Section 51-1.22 of the
Standard Specifications allows the Engineer to revise or eliminate seal course
shown on the plans.
3
A statement to the effect that final footing elevations and/or the need for seal
courses will be determined by the Engineer at the earliest possible time consistent
with the progress of the work, and that the Contractor will be notified in writing
of the Engineer's decision.
4
Caution the Contractor that work done or materials ordered prior to receiving the
Engineer's decision regarding foundations is done at their risk, and that they
assume the responsibility for the cost of alterations to such work or materials in
the event revisions are required.
For pile-supported foundations, the plans and specifications will almost always specify both
a bearing value and a specified tip elevation for driven piles and a tip elevation for non-
driven piles.
In accordance with Section 49-1.08 of the Standard Specifications, driven piles must
penetrate to the specified tip elevation unless otherwise permitted in writing by the Engi-
neer. On those occasions when the required bearing value is obtained at the specified tip
elevation, but pile tips penetrate below the specified tip elevation, no additional payment
will be made for the additional length of pile below the specified tip elevation unless
ordered in writing by the Engineer.
In order to avoid the cost of cutting off piles, the Contractor may elect to drive the pile head
to the required cutoff elevation. In these situations, the Contractor should be notified in
writing that the cost of additional driving and length of pile are at the Contractor's expense.
Frequently, driven piles must penetrate below the specified tip elevation in order to obtain
the required bearing value. In this case, the Contractor will be compensated for the addi-
tional length of pile between the specified tip elevation and the tip elevation where bearing
was obtained, as determined by the Engineer. Compensation will be at contract item price
for furnishing piling.
When this problem occurs and the specified pile type is steel "H" piles, the Engineer should
consider using lugs in order to reduce the additional pile length required. When lugs are
ordered by the Engineer, the cost of furnishing and welding steel lugs to piles is paid for by
extra work at force account or agreed price (refer to Bridge Construction Memo 130-5.0).