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Division 2 Sitework

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2-7	Earthwork - General

Note:

This draft specification is illustrative only of several requirements that should be included. The owner's representative is responsible for developing his/her own specification.

Part 1

General

A.	Description

The contractor shall excavate all materials, regardless of character, to the depths indicated. The contractor should be aware of and plan for encountering ground water during any coring, drilling, or excavating.

B.	Applicable Publications

The publications listed below, but referred to thereafter by basic designation only, form a part of this specification.

1.	American Society for Testing and Materials (ASTM) Publication:

C 33-82	Concrete Aggregates.
C 136-83	Sieve Analysis of Fine and Coarse Aggregates.
D 423-66 (R 1972)	Liquid Limit of Soils.
D 424-59 (R 1971)	Plastic Limit and Plasticity Index of Soils.
D 1140-54 (R 1971)	Amount of Material in Soils Finer Than the No. 200 (75-Micrometer) Sieve.
D 1556-82 (R 1974)	Density of Soil in Place by the Sand Cone Method.
D 1557-78	Moisture Density Relations of Soils and Soil-Aggregate Mixtures Using 10-lb (4.54-kb) Rammer and 18-In. (457-mm) Drop.
D 2419-74 (R 1979)	Test for Sand Equivalent Value of Soils and Fine Aggregates.
D 2487-69 (R 1975	Classification of Soils for Engineering Purposes.
D 2992-81	Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth).
D 301777-78	Moisture Content of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth).




2.	State of California Business and Transportation Agency, Department of Transportation: Caltrans Standard Specifications.




C.	Submittals




1.	Shoring and Sheeting Plan: Before starting work submit a shoring and sheeting plan prepared by licensed civil engineer.
2.	Dewatering Plan: Before starting work, submit a dewatering plan describing the basic components of the dewatering system proposed and its planned method of operations. Submit the dewatering performance records weekly.




D.	Delivery And Storage




Deliver and store materials in a manner to prevent contamination or segregation.




E.	Protection




1.	Shoring and Sheeting: Shall meet the following requirements:




a.	Prevent undermining of pavements and slabs.
b.	Banks may be sloped where space permits and as directed.




2.	Dewatering: Include in dewatering the collection and disposal of all forms of surface and subsurface water that may be encountered in the course of construction.
3.	High voltage duct banks: Restrict placement of soils from placement on top of duct bank vaults.
4.	Protect areas from traffic with marking tape.

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