ASTM D1587 PDF
December 3, 2019 | by admin
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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Link to Active This link will always route to the current Active version of the standard. There are also possible microbial reactions caused by temporary exposure to air.
Username or password invalid. Note This practice does not apply to liners used within the samplers. Combining values from the two systems may result in non-conformance with the standard. The tubing tolerances presented in x1587 from sources available in North America. This sampling method is not recommended for sampling soils containing gravel or larger size soil particles cemented or very hard soils.
For information on astmm use of other soil samplers refer to D They are most often used in fluid rotary drill holes Guide D and holes using hollow-stem augers Practice D One variation is a Bishop-type thin-walled sampler that is capable of holding a vacuum aetm the sampler to improve recovery 12. 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.
Not all aspects of this practice v1587 be applicable in all circumstances. Mixed soils with sands can be sampled but the presence of coarse sands and gravels may cause soil core disturbance and tube damage. The one to two week period is just guideline typically used in practice.
ASTM D, Test equipment Controls
This document cannot replace education or experience and should be used in conjunction with professional judgment. Proper lengths to be determined as suited to field conditions. This practice discusses some aspects of sample preservation after the sampling event. This practice does not address environmental sampling; consult D and D for ashm on sampling for environmental investigations.
These samplers use high C r tubes of 1. The piston sampler Practice D uses a thin-walled tube. Historical Version s – view previous versions d15877 standard. For determination of undrained strength, unconfined compression or unconsolided, undrained triaxial compression tests are often used Test Methods D and D Aetm, the piston samplers are designed to recover soft soils and low-plasticity soils and the thin-walled tubes used must be of lower C r of 0.
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.
This design was used to recover sand samples that tend to run out of the tube with sampler withdraw. Disturbance will result in errors in accurate determination of both yield stress 5.
This sampling method is not recommended for sampling soils containing coarse sand, gravel, or larger size soil particles, cemented, or very hard soils. Other soil xstm may be used for sampling these soil types. Such samplers include driven split barrel samplers and soil coring devices Test Methods DDand Practice D Thin-walled tubes used d5187 piston, plug, or rotary-type samplers should comply with Section 6.
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Use in very stiff and hard clays with insertion by driving or hammering cannot provide an intact sample. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but aatm not provided as part of the standard.
Continue shopping Proceed to checkout. Not all aspects of this practice may be applicable in all circumstances.
Are you sure you want to unsubscribe? Figure 2 shows the standard sampler aetm a ball check valve in the head, which is used in fluid rotary drilled holes. For information on appropriate use of other soil samplers refer to Practice D This practice discusses some aspects of sample preservation after the sampling event.
Are you sure you want to unsubscribe monitoring? Dd1587 tests, such as consolidated, undrained 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.
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. Samples that must be obtained by driving should be labeled as such to avoid any advanced laboratory testing for engineering properties.
Agencies that meet the criteria of Practice D are generally considered capable of competent and objective sampling. The absence of slough, cuttings, or remolded aastm in the top of the samples should be confirmed to ensure stable conditions 7.
Soft clays require C r of 0 or less than 0.
Very stiff clays 4 generally require use of rotary soil core barrels Practice DGuide D Such samplers include driven split barrel samplers and soil xstm devices Test Methods D, D, and Practice D The double-tube samplers are thicker walled and require special considerations for d15877 outside cutting shoe and not the inner thin-walled liner tube. This practice provides guidance on proper sampling equipment, procedures, and sample quality evaluation that are used to obtain intact samples suitable for laboratory testing.
Tubes with a diameter of 2 in.
ASTM D – 00 Standard Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes
In cases where the soil is very weak, it may be required to cut sections of the tube to remove soil cores for laboratory testing. Piston samplers in Practice D use thin-walled tubes. This is because once the core is in contact with the steel tube, there are galvanic reactions between the astmm and the soil which generally cause the annulus core to harden with time. 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.
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