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Pages:
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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
Driven Piles
7-38
Prior to going out in the field:
NO.
ITEM DESCRIPTION
1
Review the Plans, Special Provisions and Standard Specifications for
requirements on pile type, required bearing and penetration, predrilling depths
(critical with tension piles as well as compression piles), tip protection
or pile lugs and limitations on hammer types or other specific limitations or
requirements.
2
Check for Form TL-29, “Release of Materials.”
3
Check for welder certification requirements.
4
Prepare the pile layout sheet.
5
Prepare the pile log forms.
6
Advance preparation of a chart, table or graph which correlates the blow count,
stroke, blow rate, etc., to the bearing value is suggested for each hammer.
An example is included in Appendix E. Verify the hammer is an approved
hammer in accordance with the requirements of Bridge Construction Memo
130-2.0 and is able to develop sufficient energy to drive the piles at a penetration
rate of not less than
1
/
8
-inch per blow at the required bearing value. Refer to the
“Verification of Hammer Energy” section later in this chapter.
7
Review the mechanics of the hammer type to be used for further verification of
components in the field.
8
Obtain the necessary safety equipment (Refer to the “Safety” section later in this
chapter) and inspection tools (tape measure, paint, stop watch, etc.)
Once out in the field, prior to start up of driving:
NO.
ITEM DESCRIPTION
1
Confirm pile layout and batter requirements. The Contractor is to locate the
position of the piles in the footing. The Engineer is to check the layout
only. Do not lay out piles for the Contractor.
2
Confirm pile materials, tips and lugs. Refer to the “Materials Checklist”
later in this chapter.
3
Confirm the hammer type. If the hammer has a variable energy setting,
check the setting to ensure the proper energy will be obtained. Some of the
newer diesel hammers have four settings giving a range of 46% to 100%
maximum energy.
4
Verify the reference elevation.
5
Layout and mark piles for logging. Mark additional reference points near
the anticipated tip elevations so that monitoring can take place at smaller
increments.
6
Locate a good place to inspect operations. Notify the pile foreman of
location and signals to be used.