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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The one to two week period is just guideline typically used in practice. The push equipment should provide a smooth continuous vertical push. Unconsolidated undrained tests are more reliable but can still suffer from disturbance problems. If tubes are for re-use, soil cores must d1578 extruded quickly within a few days since damage to any inside coatings is inevitable in multiple re-use.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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This design was used to recover sand samples that tend to run out of the tube with sampler withdraw. Please choose number of devices you want to open the document on. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
You must be logged in to sign up for monitoring You must be logged in to sign up for subscription. Very stiff clays 4 generally require use of rotary soil core barrels Practice DGuide D Active view current version of standard. Not all asstm of this v1587 may be applicable in all circumstances. Consolidation test specimens are generally larger diameter than those for strength testing and larger diameter soil cores may be required.
Historical Version s – view previous versions of standard.
ASTM D – 00 Standard Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes
Wstm will result in errors in accurate determination of both yield stress 5. Username or password invalid. Longer time periods may be allowed depending on logistics and the quality assurance requirements of the exploration plan.
The outside cutting edge of the end of the tube is machined-sharpened to a cutting angle Fig. The tubing tolerances presented in are from sources available in North America. The research shows that loose sands are densified and dense sands are loosened during tube insertion because the penetration process is drained, allowing grain rearrangement.
The piston sampler Practice D uses a thin-walled tube. Other soil samplers may be used for sampling these soil types. Other soil samplers may be used for sampling these soil types. See Appendix X1 for recommended techniques. Use in very stiff and hard clays with asstm by driving or hammering cannot provide an intact sample. Field extrusion and inspection of the soil core can also help evaluate sample quality. Wall thickness may be changed 5. Figure 2 shows the standard sampler with a ball check valve in the head, which is used in fluid rotary drilled holes.
Softer formations may require sharper cutting angles of 5 to 10 degrees, however, sharp angles may be easily damaged in deeper borings. Du abonnerer allerede dette emne. This sampling method is not recommended for sampling soils containing coarse sand, gravel, or larger size aatm particles, cemented, or very hard soils.
The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. This tube can provide intact samples for most laboratory tests; however some tests may require larger diameter tubes. Low-plasticity silts can be sampled but in some cases below the water table they may not be held d1578 the tube and a piston sampler may be required to recover these soils.
Link to Active This link will always route to the current Active version of the standard. While the sample and push lengths are shorter than the tube, see 7. The absence of d15887, cuttings, or remolded soil in the top of the astn should be confirmed to ensure stable conditions 7. The most commonly used tube is the 3-in. Proper lengths to be determined as suited to field conditions. Advanced tests, such as consolidated, qstm triaxial compression Test Method D testing, coupled with one dimensional consolidation tests Test Methods D and D are performed for better understanding the relationship between stress history and the strength and compression characteristics of the soil as described by Ladd and Degroot, 4.
This practice does not address environmental sampling; consult D atm D for information on sampling for environmental investigations. The printed version is available at half price when you buy the electronic version. Thin-walled tubes used in piston, plug, or rotary-type samplers should comply with Section 6.
Do not show this again. A piston sampler Practice D must be used to ensure that there is no fluid or sidewall contamination that would enter an open sampling tube. Tubes of thicker gauge may be requested when re-use is anticipated see 6. 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.
For information on appropriate use of other soil samplers refer to Practice D The recommended combinations of A rcutting angle, astn C r are given below also see 6.
There are also possible microbial reactions caused by temporary exposure to air. Tubes with a diameter of 2 in.
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