final bid specs 09328.pdf - Freese and Nichols, Inc.

31 23 10 STRUCTURAL EXCAVATION AND BACKFILL
1.00 GENERAL
1.01 WORK INCLUDED
A. Furnish labor, materials, equipment and incidentals necessary to complete structural
excavation, filling, backfilling, and compacting; to provide protection to equipment and cuts; to
include backfill material; the construction or installation of cofferdams, and other similar
facilities which may be necessary to perform excavations and/or backfilling; to include the
necessary pumping, bailing, or associated drainage; to remove and dispose of surplus
materials, cofferdams, and debris; and to provide final grading, as required.
B. The work does not include excavation, filling, and backfilling for utility lines, manholes, vaults,
valve boxes, and related structures.
1.02 SUBMITTALS
A. Submittals shall be in accordance with Section 01 33 00, SUBMITTALS and shall include:
1.03 STANDARDS
1. Submit qualifications of independent testing laboratory for approval.
2. Backfill material classifications. Provide certification by an approved independent testing
laboratory.
3. Compaction test results. Provide compaction test results within 24 hours.
A. The following publications, referred to hereafter by basic designation only, form a part of this
specification as if written herein in their entirety:
ASTM D698
ASTM D1556
ASTM D6938
ASTM D4253
ASTM D4254
Test Methods for Laboratory Compaction Characteristics of Soil
Using Standard Effort (12,400 ft-lbf/ft 3 (600 kN-m/m 3 ))
Test Method for Density and Unit Weight of Soil in Place by the
Sand-Cone Method
Standard Test Methods for In-Place Density and Water Content of
Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)
Test Methods for Maximum Index Density and Unit Weight of
Soils Using a Vibratory Table
Test Methods for Minimum Index Density and Unit Weight of Soils
and Calculation of Relative Density
B. Any other testing required by these specifications and not specifically referenced to a
standard shall be performed under ASTM or other appropriate standards as designated by the
Engineer.
C. References herein or on the drawings to soil classifications shall be understood to be
according to ASTM D2487, “Standard Classification of Soils for Engineering Purposes
(Unified Soil Classification System)" unless indicated otherwise.
1.04 DELIVERY AND STORAGE
Deposit material to be used for backfill in storage piles at points convenient for handling of the
material during the backfilling operations.
Structural Excavation and Backfill 31 23 10-1
DPR09328