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Norm

ASTM D 7015

Ausgabedatum: 2007

Standard Practices for Obtaining Intact Block (Cubical and Cylindrical) Samples of Soils

1.1 These practices outline the procedures for obtaining intact block (cubical and cylindrical) soil samples. 1.2 Intact block samples are obtained for laboratory tests t...

Herausgeber:

American Society for Testing and Materials

Format:

Digital | 6 Seiten

Sprache:

Englisch

Aktuell Gültig:

ASTM D 7015:2013 07 01

ICS

13.080.05

Fachgebiete

Environment, Soil quality. Pedology, Examination of soils in general Agriculture & food, Soil quality. Pedology, Examination of soils in general

1.1 These practices outline the procedures for obtaining intact block (cubical and cylindrical) soil samples. 1.2 Intact block samples are obtained for laboratory tests to determine the strength, consolidation, permeability, and other geotechnical engineering or physical properties of the intact soil. 1.3 Two sampling practices are presented. Practice A covers cubical block sampling, while Practice B covers cylindrical block sampling. 1.4 These practices usually involve test pit excavation and are limited to relatively shallow depths. Except in the case of large diameter (that is, 0.75 m) bored shafts of circular cross-section in unsaturated soils, for depths greater than about 1 to 11/2 meters or depths below the water table, the cost and difficulties of excavating, cribbing, and dewatering generally make block sampling impractical and uneconomical. For these conditions, use of a thin-walled push tube soil sampler (Practice D 1587), a piston-type soil sampler (Practice D 6519), or Hollow-Stem Auger (D 6151), Dennison, or Pitcher-type soil core samplers, or freezing the soil and coring may be required. This practice does not address environmental sampling; consult Guides D 6169 and D 6232 for information on sampling for environmental investigations. 1.5 Successful sampling of granular materials requires sufficient cohesion, cementation, or apparent cohesion (due to moisture tension (suction)) of the soil for it to be isolated in a column shape without undergoing excessive deformations. Additionally, care must be exercised in the excavation, preservation and transportation of intact samples (see Practice D 4220, Group D). 1.6 The values stated in SI units are to be regarded as the standard. No other units are included in this standard. This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction ....(abbreviated)

ASTM D 7015

2013 07 01

Standard Practices for Obtaining Intact Block (Cubical and Cylindrical) Samples of Soils...

Norm

ASTM D 7015

2007

Standard Practices for Obtaining Intact Block (Cubical and Cylindrical) Samples of Soils

Norm

↖

ASTM D 7015

2004

Standard Practices for Obtaining Undisturbed Block (Cubical and Cylindrical) Samples of Soils

Norm

ASTM D 7015

Ausgabedatum : 2013 07 01

Standard Practices for Obtaining Intact Block (Cubical and Cylindrical) Samples of Soils