ASTM D1587 PDF

This standard is issued under the fixed designation D/DM; the number 1 This practice is under the jurisdiction of ASTM Committee D18 on Soil and. GeoTesting Express is a provider of Soil Testing Services – ASTM D, Standard Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes. ASTM D/DM Standard Practice for Thin-Walled Tube Sampling of Fine-Grained Soils for Geotechnical Purposes. standard by.

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Longer time periods may be allowed depending on logistics and the quality assurance requirements of the exploration plan.

Other soil samplers may be used for sampling these soil types. The outside cutting qstm of the end of the tube is machined-sharpened to a cutting angle Fig. Disturbance and sample quality can be evaluated by looking at recompression strains in the One-Dimensional Consolidation test see Andressen and Kolstad 5.

Unconfined compression tests should be only used with caution or based on experience because they often provide unreliable measure of undrained strength, especially in fissured clays. If tubes are for re-use, soil cores must be extruded quickly within a few days since damage to any inside coatings is inevitable in multiple re-use.

Softer formations may require sharper cutting angles of 5 to 10 degrees, astk, sharp angles may be easily damaged in deeper borings.

The tubes are also usually supplied with a machine-beveled inside cutting edge which provides the Clearance Ratio C r. Are you sure you want to unsubscribe monitoring? Kontakt venligst Dansk Standard. The SI values given in parentheses are provided for information purposes only.

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This design was used to recover sand samples that tend to run out of the tube with sampler withdraw. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Active view current version of standard. Historical Version s – view previous versions of standard. D15877 document cannot replace education or experience and should be used in conjunction with professional judgment. If samples are taken in uncased boreholes the cores should asrm inspected for any sidewall contamination.

Subsurface geotechnical explorations should be reported in accordance with practice D Reliable results depend on many factors; Practice D provides a means of evaluating some of those awtm.

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Soil samples inside the tubes can be readily evaluated for disturbance or other features such as presence of fissures, inclusions, layering or voids using X-ray radiography D if facilities are available. Low-plasticity silts can be sampled but in some cases below the water table they may not be held in the tube and a piston sampler may be required to recover these soils.

ASTM D – 00 Standard Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes

Use of metric equivalent is acceptable as long as thickness and proportions are similar to dd1587 required in this standard. Any drilling method that ensures the base of the borehole is intact and that the borehole walls are stable may be used.

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This practice does not address environmental sampling; consult D and D for information on sampling for environmental investigations. They are most often used in fluid rotary drill holes Guide D and holes using hollow-stem augers Practice D Consolidation test specimens are generally larger diameter than those for strength testing and larger diameter soil cores may be required.

This document cannot replace education or experience and should be used in conjunction with professional judgment. Username or password invalid. See Appendix X1 for recommended techniques. The piston sampler Practice D uses a axtm tube.

Thin-walled tubes used in piston, plug, or rotary-type samplers should comply with Section 6. For information on appropriate use of other soil samplers refer to D This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects.

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