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Description of ASTM-D2573 2008ASTM D2573 - 08Standard Test Method for Field Vane Shear Test in Cohesive SoilActive Standard ASTM D2573 | Developed by Subcommittee: D18.02 Book of Standards Volume: 04.08 ASTM D2573Significance and Use
This test method provides an indication of in-situ undrained shear strength of fine- grained clays and silts or other fine geomaterials such as mine tailings, organic muck, and substances where undrained strength determination is required. The test is applicable to soils with undrained strengths of less than 200 kPa (2 tsf). Very sensitive soils can be remolded during vane insertion. This test method is used extensively in a variety of geotechnical explorations to evaluate rapid loading strength for total stress analysis of saturated fine-grained clays and silts. The test is routinely performed in conjunction with other field and laboratory tests. The peak undrained shear resistance of the vane test is commonly corrected to determine the undrained shear strength for geotechnical analysis. The agency requesting the testing must interpret these data to determine applicability for strength analysis. It is beyond the scope of this standard to recommend applicability of vane testing for geotechnical analysis. For information on the general use of these correction factors, consult Appendix X1. This method is not applicable in sands, gravels, or other high permeability soils. With the shearing rates described in this standard, sand lenses, if present, will allow total or partial drainage. Soils with higher permeability, in rapid shear, can dilate or collapse and generate negative or positive pore pressures which may, or may not, dissipate in the shearing process. It is important to check the soil type being tested. It is very beneficial to sample the soil either before or after testing, to understand the drainage conditions (permeability) of the soil tested. This test is often performed in drilled boreholes or with self-push or self-drilling or pushed (vane shoe) methods. This method also applies to hand held vane shear tests performed at shallow depths, however, hand held equipment may be less accurate, because it may be more difficult to maintain vane/rod stability and verticality. Note 2The 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. Agencies that meet the criteria of Practice D 3740 1. Scope
1.1 This test method covers the field vane test in saturated clay and silt soils for determination of undrained shear strength. Knowledge of the nature of the soil in which each vane test is to be made is necessary for assessment of the applicability and interpretation of the test. The test is not applicable for sandy soils which may allow drainage during the test. 1.2 This test method addresses testing on land and for testing in drill holes or by self drilling or continuous push methods from the ground surface. This method does not address specifically marine testing where special test requirements or variations in equipment may be required. The user is referred to ASTM STP 1014 for additional information on in-place vane shear testing. 1.3 This method is often used in conjunction with fluid rotary drilling (D 5783 1.4 Undrained shear strength and sensitivity of cohesive soils can also be measured in Unconfined Compression D 2166 1.5 The values stated in SI units are to be regarded as the standard. English (Imperial) units are given in parentheses. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ASTM Standards D653 Terminology Relating to Soil, Rock, and Contained Fluids D1587 Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes D2166 Test Method for Unconfined Compressive Strength of Cohesive Soil D2488 Practice for Description and Identification of Soils (Visual-Manual Procedure) D3740 Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction D4648 Test Method for Laboratory Miniature Vane Shear Test for SaturatedFine-Grained Clayey Soil D5434 Guide for Field Logging of Subsurface Explorations of Soil and Rock D5783 Guide for Use of Direct Rotary Drilling with Water-Based Drilling Fluid for Geoenvironmental Exploration and the Installation of Subsurface Water-Quality Monitoring Devices D6151 Practice for Using Hollow-Stem Augers for Geotechnical Exploration and Soil Sampling Other Standards EuroCode7:Geotechnic ENV 1997-3:1999E, CENKeywords clay; exploration; in-situ test; sensitivity; shear strength; undrained strength; vane shear; Cohesive soils; Field testing--soil; Field vane shear test; In-situ soil/rock testing/analysis; Shear testing--soil; Soil; Vane shear test; ICS Code ICS Number Code 93.020 (Earth works. Excavations. Foundation construction. Underground works) DOI: 10.1520/D2573-08 ASTM D2573This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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