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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
Static Pile Load Testing and Dynamic Pile Monitoring
8-2
Reasons For Static Load Testing
and Dynamic Pile Monitoring
In order to determine the capacity of foundation piles, the Foundation Testing and Instru-
mentation Section performs Static Pile Load Testing for all types of foundation piles, and
Dynamic Pile Monitoring of driven piles.
Static Load Tests are performed to determine the ultimate failure load of a foundation pile
and to determine the pile’s capability of supporting a load without excessive or continuous
displacement. The purpose of such tests is to verify that the allowable loads used for the
design of a pile are appropriate and that the installation procedure is satisfactory. Static
load tests also allow for the use of a lower factor of safety and a more “rational” foundation
design.
Static load tests may be recommended when foundation piles are being installed in certain
locations or types of material where ordinary methods of determining safe pile loads are not
considered reliable. They are often recommended for Cast-In-Drilled-Hole (CIDH) piles
installed in unproven ground formations. Static Load Testing is also performed where it is
desired to demonstrate that friction piles may be safely loaded beyond the indicated safe
loads obtained by the application of the Engineering News-Record (ENR) formula. Static
Load Tests are also recommended for piles designed to carry loads in tension, particularly
those foundation piles used on seismic retrofit projects.
Dynamic Pile Monitoring of driven piles is used to verify and/or predict pile capacities and
to gather various pieces of useful information during the installation of driven piles.
Obtaining a successful pile foundation, which meets the design objectives, depends largely
on relating the static analysis results presented on the plans to the dynamic methods of field
installation.
Static Pile Load Tests
When Static Pile Load Testing is performed on a project, personnel from the Foundation
Testing and Instrumentation Section follow the “Quick Load Method” of ASTM D1143 for
static load testing in compression, and ASTM D3689 for static load testing in tension. Both
the compression and tension load tests require approximately 4 to 8 hours to complete.