\* \* \* \* \* \* \* \*

REMOVE THIS OUTLINE GUIDE BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

\* \* \* \* \* \* \* \*

O U T L I N E G U I D E

[DIVISION 17: MISCELLANEOUS ]{.underline}

SECTION 17102 - GEOTECHNICAL INVESTIGATIONS

USE: Drilling test holes in soil, recovering soil samples from these
bores, performing tests, and preparation of a report on the findings.

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[[ ]{.underline}\] provide for
information to be inserted, as appropriate to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface,
**and *italics* within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately).

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED. **Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name Of The Project (upper/lower case).**
Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specifications that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST-110
or call (303) 987-6851.

F. DESIGN NOTES:

1\. **DRAWING DATA REQUIRED:**

**REVISIONS OF THIS SECTION:**

Editorial changes 9/99

Metric: Not Applicable

Technical Update: 8/00

SECTION 17102

GEOTECHNICAL INVESTIGATIONS

[PART 1: GENERAL]{.underline}

C.1.1 Description of Work: Drill test holes in soil, recover soil
samples from these holes, perform tests, and prepare a report.

C.1.2 Location of Work: Work under this Contract is located at the
\[\_\_\_\_\_\_\_\_\_\_\_\] in \[\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\] County,
\[\_\_\_\_\_\_\_\_\_\_\_\_\_\_\]. The work location is shown on the
attached drawings\].

C1.3 Documentation Delivery:

a\. Deliver all draft reports and completed engineering reports to: [
]{.underline}.

b\. the contractor shall be responsible for postage or freight costs
incurred when shipping any material to the Government.

C.1.4 References:

C.1.4.1 American Society for Testing and Materials

ASTM D 1452 Soil Investigation and Sampling by Auger Borings

ASTM D 1586 Penetration Test and Split-Barrel Sampling of Soils

ASTM D 1587 Thin-Walled Tube Sampling of Soils

ASTM D 2488 Description and Identification of Soils (Visual-Manual
Procedure)

C.1.5 Drawings: The drawings are diagrammatic and indicate the general
character, approximate location, and extent of the area to be
investigated. The drawings do not attempt to show details which may
affect the testing work.

C.1.6 Access:

a\. General: Access to the site of the work is via existing roads and
trails, and via new trails or pioneer roads to be constructed by the
Contractor as required to move equipment to and from the site. Work to
existing or new access routes required for access and movement of
equipment shall be the responsibility of the Contractor. a site
reconnaissance (recon) can be performed to determine the type of
drilling/sampling equipment to be used and to locate suitable
access/egress locations. The recon shall be done with a representative
of the BLM. The test sites may be located at the time the site recon is
performed.

b\. Location and Alignment: The location and alignment of new trails or
pioneer roads shall be approved in advance by the Contracting Officer.
No approval is required to move equipment within cleared areas on the
site.

c\. Use of Existing Roads: Where existing access routes are located on
private land or State of \[\_\_\_\_\_\_\_\_\_\_\_\_\_\] land, it shall
be the responsibility of the \[Contractor\] \[Government\] to arrange
for the use of these facilities.

C.1.7 Survey and Controls: The Contractor shall perform horizontal and
vertical surveys necessary to control the work. Surveys shall be tied to
existing monuments whether shown on the drawings or not, and to mean sea
level datum. Horizontal location of holes shall be according to the grid
shown on the drawings. The ground surface elevation shall be determined
at each hole to within 0.10 ft. stake the locations of test holes/sites
with a wooden stake at least 36-inches long and topped with bright
orange paint for ease of location. Each stake shall be marked with the
identification number of the location.

C.2.0 CONTRACTOR-FURNISHED ITEMS:

C.2.1 Testing Equipment: The Contractor shall have equipment on the site
to perform the following tests:

a\. Penetration Test and Split Barrel Sampling of Soils according to
ASTM D 1586.

b\. Thin-Walled Tube Sampling of Soils according to ASTM D 1587.

c\. Description and Identification of Soils (Visual-Manual Procedure)
according to ASTM D 2488.

C.2.2 Disposition of Samples: Samples recovered shall be packaged in a
manner approved by the Contracting Officer, and transported by the
Contractor to his primary place of business. The samples are to be
stored by the Contractor for a period of 1 year and remain the property
of the Government.

C.2.3 Laboratory Testing Standards: Shall be accomplished according to
recognized standard testing procedures (ASTM, AASHTO, or other) unless
otherwise approved by the Contracting Officer.

C.3.0 SPECIFIC TASKS:

C.3.1 Report: Submit \[\_\_\] copies of an engineering report which is
signed by a Registered Professional Engineer in the State of \[[
]{.underline}\]. The report shall include the following information:

a\. Logs of the test holes both as a written record and as graphic logs.

b\. Tests utilized and the test results.

c\. A description of the subsurface structures and conditions
encountered on the site.

d\. California Bearing Ratio

e\. Sieve Analysis

f\. Atterberg Limits

g\. Soil Classification

h\. Water Table or indication of seasonally (spring) high water table

i\. Percolation Rate

j\. Recommendations for suitable foundation types

1\. If a spread footing is recommended the following information is
necessary:

\(a\) allowable bearing pressure

\(b\) coefficient of friction

\(c\) equivalent fluid pressure

\(d\) recommended embedment depth

2\. If piles or caissons are recommended the following information is
necessary:

\(a\) blow counts

\(b\) end bearing

\(c\) skin friction

\(d\) modulus of horizontal subgrade reaction

k\. Recommendations for types of suitable foundations and pavements.

l\. Criteria and parameters for the design and support of suitable
foundations and pavements.

m\. Maximum frost depth

n\. Maximum snow load

o\. Maximum wind load or velocity in mph

p\. Seismic zone

C.3.2 Drilling: Drilling shall be accomplished according to ASTM D 1452.
Auger holes shall be a minimum of 3-9/16 inches in diameter and shall be
at the locations as shown on the drawings. A professional Soils
Engineer, Geologist, or approved Geotechnician shall be on site to log
holes, care for samples, and supervise the Contractor\'s operations.

C.3.3 Alignment: The Contractor shall drill each test hole as nearly as
practicable to a true vertical alignment.

C.3.4 Log of Test Holes: The Contractor shall keep a complete log
showing the depth below ground surface at which important changes in
formation is encountered. The log shall show the thickness, type, color,
and drilling characteristics of rock or soil formation penetrated, the
location of water, the location of frozen soil and the soil classified
by the Unified Soil Classification System according to ASTM D 2488. Even
though no change in formation is apparent, formations shall be checked
and the results entered in the log at intervals not to exceed 5 ft. This
log shall be kept up to date with the progress of the drilling, and
shall be available for examination by the Contracting Officer at any
time during the drilling operation. At the conclusion of the drilling,
one copy of this field log shall be furnished to the Contracting
Officer.

C.3.5 Sampling: The Contractor shall take samples using the following
procedures:

a\. Unless otherwise required, holes shall be advanced to a point of
\[fifteen\] ft below the surface of the ground or as shown on the
attached drawing.

b\. Samples shall be recovered at a depth of 3 ft, from each major soil
horizon encountered, and at intervals of at least 5 ft and at the bottom
of the hole.

c\. Penetration Test and Split Barrell Sampling of Soils, shall be
accomplished in these holes for each sample recovered and at intervals
of not more than 5 ft and in each soil horizon encountered according to
ASTM D 1586. If unfrozen cohesive or other fine-grained soils are
encountered below 10 ft, Thin-Walled Tube Sampling of Soils shall be
used, according to ASTM D 1587. Samples recovered from frozen materials
shall consist of disturbed material. \"Tube samples\" or \"cores\" are
not required. Split-spoon samples shall be recovered from frozen soils
when possible. Penetration tests are not required in frozen soil.

C.3.6 Laboratory Testing Program: After field logs and data are
available for inspection, the Contractor shall examine the character of
the subsurface conditions encountered and recommended, for the approval
of the Contracting Officer, a program of laboratory testing. No
laboratory testing shall be undertaken prior to approval of the
recommended testing program. The testing program shall include the
following:

a\. Identification of each sample to be tested by location in the log of
the source holes.

b\. Identification of the tests to be conducted on each sample.

C.3.7 Frozen Samples: Shall be maintained in the frozen state until
after the initial laboratory review.

C.3.8 Drilling Waste: \[Drill cuttings shall be\] \[left in place at the
drill hole.\] \[disposed of offsite.\] \[When the drilling has been
completed, the samples taken, and the log completed, the drill cuttings
shall be placed in the drill hole.\]

C.3.9 Schedule of Operations: The Contractor shall meet the following
time schedule.

a\. Start field operation within \[five\] calendar days after execution
of the Contract.

b\. Complete field work within \[fourteen\] calendar days of
commencement of field operations.

c\. Submit report and copies not more than \[four\] calendar days after
completion of laboratory testing.

END OF SECTION