HomeMy WebLinkAboutKSM PAPPERSOCT = 2015 !i1
KELLER, SCHLEICHER & MacWILLIAM ENGINEERING AND TESTI.N.G.,-I_NC.
MARTIN (772) 337-7755 P.O. BOX 78-1377 SEBASTIAN, FL 32978-1377 SEBASTIAN (772) 589-0712
PALM BEACH (561) 845-7445 www.ksmengineering.net MELBOURNE (321) 768-8488
FAX (561) 845-8876 E-Mail: KSM@KSM ENGINEER] NG.NET ST. LUCIE (772) 229-9093
C.A.:5693 FAX (772) 589-6469
October 6, 2015
Aaron Wojcieszak
Commercial Contracting Division, Inc.
709 S.E. 5th Street
Stuart, Florida 34994
SCANNED
BY
Re: 4,000 s.f. Building St. LucieCounh,
St. Lucie Nuclear Power Plant
6501 South Ocean Blvd.
Jensen Beach, Florida
KSM Project #: 152133-b
Dear Mr. Wojcieszak:
As requested, KSM Engineering & Testing has performed a subsurface investigation at the
referenced .site. Presentation of the data gathered during the investigation, together with our
geotechnical related opinions, are included in this report.
A. Site Description:
At the time of drilling, the site was fairly flat and cleared.
B. Project Description:
A one story, 4,000 s.f. metal building is planned to be constructed on the site. Loads from the
structure will be transferred to the ground by conventional shallow footings. QNe estimate the
maximum loads will be less than 2,000 ounds per linear foot along the wall foundation and less
than 30 kips for individual column loads.i
Some additional site fill will be required to reach the desired grades.
Ronald G. Keller, P.E.: 37293 / SI Lic. No.: 860 / Julie E. Keller, P.E.: 68366
KELLER, SCHLEICHER & MacWILLIAM ENGINEERING AND TESTING, INC.
MARTIN (772) 337-7755 P.O. BOX 78-1377 SEBASTIAN FL 32978-1377 SEBASTIAN (772) 589-0712
PALM BEACH (561) 845-7445 www.ksmengineering.net MELBOURNE (321) 768-8488
FAX (561) 845-8876 E-Mail: KSM@KSMENGINEERING.NET ST. LUCIE (772) 229-9093
C.A.: 5693 FAX (772) 589-6469
4,000 s.f. Building -2- October 6, 2015
St. Lucie Nuclear Power Plant
6501 South Ocean Blvd.
Jensen Beach, Florida
C. The scope of our study consisted of the following:
Performed Standard Penetration Test Borings in the proposed construction area to estimate
the subsoil relative density.
2. Measured the groundwater level at each boring.
3. Evaluated the existing soil conditions with respect to the proposed construction and
provided recommendations for site preparation and foundation design.
4. Prepared this report to document our findings.
D. Site Investigation:
The site investigation program consisted of performing four (4) Standard penetration test borings in
the proposed construction area. The borings were terminated at depths of 10 to 14 feet below
grade. The locations of the borings are indicated on the attached boring logs.
The SPT borings were completed in accordance with procedures described in ASTM D-1586. A
standard 1.5 inch I.D., 2 inch O.D. split -spoon sampler is driven into the soil by successive blows of
a 140 pound hammer freely falling 30 inches. The number of blows required to drive the sampler 1
foot, after seating 6 in., is designated the Penetration Resistance, or "N" value. At regular intervals
the sampler is extracted from the ground and opened to allow visual examination and classification
of the retained soil sample. Also, the groundwater table was allowed to stabilize and the depth of
the groundwater elevation recorded from existing grade.
The records of the soils encountered, the penetration resistances and groundwater level are shown
on the attached logs.
Ronald G. Keller, P.E.: 37293 / SI Lic. No.: 860 / Julie E. Keller, P.E.: 68366
KELLER, SCHLEICHER & MacWILLIAM ENGINEERING AND TESTING, INC.
MARTIN (772) 337-7755 P.O. BOX 78-1377, SEBASTIAN FL 32978-1377 SEBASTIAN (772) 589-0712
PALM BEACH (561) 845-7445 www.ksmengineering.net MELBOURNE (321) 768-8488
FAX (561) 845-8876 E-Mail: KSM@KSMENGINEERING.NET ST. LUCIE (772) 229-9093
C.A.: 5693 FAX (772) 589-6469
4,000 s.f. Building -3- October 6, 2015
St. Lucie Nuclear Power Plant
6501 South Ocean Blvd.
Jensen Beach, Florida
E. Engineering Evaluation and Conclusions:
Based on the information obtained from this site investigation, we are pleased to offer the following
evaluation:
The boring logs indicate the subsurface conditions to be fairly uniform across the site. The soils
consist mostly of fine-grained sand. Shell fragments were also found in the borings. "N" values
recorded during the boring operation indicate the soil density is generally firm to medium dense.
Please refer to the soil boring logs for specific information relative to the soil description.
Based on the existing soil conditions, the proposed structure can be supported on a shallow
foundation system provided that the site is properly prepared.
The following sections provide recommendations for the site preparation and foundation design.
F. Site Preparation:
The proposed building area and areas to be paved, plus a minimum margin of five feet beyond the
proposed construction shall be stripped and grubbed of surface debris, including vegetation, roots
and organic matter. Stumps shall be removed entirely. The building area should be graded level
and proofrolled. Any soft yielding areas shall be excavated and replaced with clean compacted fill.
Sufficient passes should be made during compaction operations to produce a density no less than
95 percent of its modified dry Proctor value (ASTM D 1557) to a depth of two feet.
After the exposed surface has been proofrolled, the building and pavement areas may be filled to
the desired grades. The fill material shall consist of clean granular sand containing less than 10%
material passing the U.S. Standard No. 200 mesh sieve. Place structural fill in loose layers of 12
inches in thickness and compact each lift to at least 95 percent of its modified dry Proctor value.
After excavating for the footings, the disturbed footing subgrade should be recompacted to 95
percent (minimum) of its modified dry Proctor value. This can be best achieved by making several
passes with a relatively light -weight walk -behind vibratory sled or roller.
Ronald G. Keller, P.E.: 37293 / SI Lic. No.: 860 / Julie E. Keller, P.E.: 68366
�_...1A "t
KELLER, SCHLEICHER & MaCWILLIAM ENGINEERING AND TESTING, INC.
MARTIN (772) 337-7755 P.O. BOX 78-1377 SEBASTIAN, FL 32978-1377 SEBASTIAN (772) 589-0712
PALM BEACH (561) 845-7445 www.ksmengineering.net MELBOURNE (321) 768-8488
FAX (561) 845-8876 E-Mail: KSM@KSMENGINEERING.NET ST. LUCIE (772) 229-9093
C.A.: 5693 FAX (772) 589-6469
4,000 s.f. Building -4- October 6, 2015
St. Lucie Nuclear Power Plant
6501 South Ocean Blvd.
Jensen,Beach, Florida
G. Foundation:
Provided that our recommendations for site preparation are followed, the proposed structure may
be supported on conventional concrete slab, steel -reinforced -footings designed for an allowable soil
bearing pressure o ''2;00 pounds persq foot, of less
With the foundation properly designed and the site properly prepared, we anticipate total
settlements less than 1/2 of an inch and less than 1/4 of an inch of differential settlement. The
majority of the settlement should occur during construction.
H. Floor Slabs:
A conventional slab -on -grade can be used in the "at grade" portion of the buildings. We
recommend the disturbed subgrade below the floor slab be re -compacted to 95 percent of the
modified Proctor maximum dry density (ASTM D 1557) prior to placement of the concrete. An
estimated modulus of subgrade reaction of 150 pounds per cubic inch (pci) can be used for design
of the slab -on -grade. We recommend that expansion or control joints be incorporated between the
floor slab and column or wall footings. Control joints should also be incorporated in the slab at
frequent intervals to control shrinkage cracks.
A moisture barrier is recommended beneath the floor slab to prevent moisture migration from the
underlying soil resulting in dampness of the slab.
I. Closure:
This report has been prepared in accordance with generally accepted soil and foundation
engineering practices based on the results of the test borings and the assumed loading conditions.
This report does not reflect any variations which may occur between the borings. If variations
appear evident during the course of construction, it would be necessary to re-evaluate the
recommendations of this project.
We are,,0e'A*36 %,,be of assistance to you on this phase of your project. When we may be of
furth{�1'°s �FaQi670.reshould you have any questions, please feel free to call.
ENGW.%'"
Email To:
Ronald G. Keller, P.E.: 37293 / SI Lic. No.: 860 / Julie E. Keller, P.E.: 68366
KSM Engineering L-`,:-°an9P.O.
BORING NUMBER B-1
Box 78-1377
KSM S bast an, FL 32978
PAGE 1 OF 1
Tel: (772)-589-0712
Fax: (772)-589-6469
CLIENT Commercial Contracting Division, Inc.
PROJECT NAME St. Lucie Nuclear Power Plant, 4,000 s.f. Building
PROJECT NUMBER KSM # 152133-b
PROJECT LOCATION _6501 S. Ocean Blvd., Jensen Beach, Florida
DATE STARTED 10/5/15 COMPLETED 10/5115
GROUND ELEVATION
HOLE SIZE inches
DRILLING CONTRACTOR
GROUND WATER LEVELS:
DRILLING METHOD Split Spoon Sample
Q AT TIME OF DRILLING 3.92
ft
LOGGED BY MS & MH CHECKED BY JEK
AT END OF DRILLING --
NOTES N.E. Section of Proposed Building
AFTER DRILLING —
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KSM Engineering ing
BORING
P.O. Box 78-1377
NUMBER B-2
KSM Sebastian, FL 32978
PAGE 1 OF 1
Tel: (772)-589-0712
Fax:(772)-589-6469
CLIENT Commercial Contracting Division Inc
PROJECT NAME St. Lucie Nuclear Power Plant 4,000 s f. Building
PROJECT NUMBER KSM # 152133-b
PROJECT LOCATION
6501 S. Ocean Blvd., Jensen Beach Florida
DATE STARTED 10/5/15 COMPLETED 1015/15
GROUND ELEVATION
HOLE SIZE inches
DRILLING CONTRACTOR
GROUND WATER LEVELS:
DRILLING METHOD Split Spoon Sample
SZAT TIME OF DRILLING
3.33 ft
LOGGED BY MS & MH CHECKED BY JEK
AT END OF DRILLING
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BORING NUMBER B-3
P.O. Box 78-1377
KSM
PAGE 1 OF 1
S basstian, FL 32978
Tel: (772)-589-0712
Fax: (772)-589-6469
CLIENT Commercial Contracting Division Inc.
PROJECT NAME St. Lucie Nuclear Power Plant 4,000 s.f. Building
PROJECT NUMBER KSM # 152133-b
PROJECT LOCATION 6501 S. Ocean Blvd., Jensen Beach. Florida
DATE STARTED 1015115 COMPLETED 10/5/15
GROUND ELEVATION
HOLE SIZE inches
DRILLING CONTRACTOR
GROUND WATER LEVELS:
DRILLING METHOD Split Spoon Sample
a AT TIME OF DRILLING 3.25
ft
LOGGED BY MS & MH CHECKED BY JEK
AT END OF DRILLING —
NOTES S.W. Section of Proposed Building
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BORING NUMBER B-4
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PAGE 1 OF 1
Tel: (772)-589-0712
Fax: (772)-589-6469
CLIENT Commercial Contracting Division, Inc.
PROJECT NAME St. Lucie Nuclear
Power Plant 4,000 s.f. Building
PROJECT NUMBER KSM # 152133-b
PROJECT LOCATION 6501 S. Ocean Blvd., Jensen Beach Florida
DATE STARTED 1015/15 COMPLETED 1015115
GROUND ELEVATION
HOLE SIZE inches
DRILLING CONTRACTOR
GROUNDWATER LEVELS:
DRILLING METHOD Split Spoon Sample
Q AT TIME OF DRILLING 3.75
ft
LOGGED BY MS & MH CHECKED BY JEK
AT END OF DRILLING —
NOTES N.W. Section of Proposed Building
AFTER DRILLING —
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