The American Society for Testing Materials (ASTM) has standardized this test procedure in two codes one is ASTM D and ASTM D Ebook. Proceedings of the 16th International Conference on Soil Mechanics and applications using the procedures of ASTM D, field data acquisition. PDF | Plate load test is the most reliable method for obtaining the coefficient of sub-grade reaction and the The tests were performed according to (ASTM D- ). . The tests were performed according to (ASTM D).
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This standard is issued under the fixed designation D ; the number 1 This test method is under the jurisdiction of ASTM Committee D18 on Soil and. D Standard Test Method for Bearing Capacity of Soil for Static Load and Spread Footings (Withdrawn ASTM D Format, Pages, Price. PDF. Used to determine the bearing capacity of soil layers in road constructions, foundations, highways, airport and subgrades and sub-layers of soil. ▫. Includes a .
Copyright ASTM Standard Test Method for Bearing Capacity of Soil for Static Load and Spread Footings1 This standard is issued under the xed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. Scope 1.
DeBeer, E. II, pp 13— Google Scholar Denisov, N.
Dott, R. McGraw Hill Book Co. Dudley, J. Flint, R. John Wiley and Sons, Inc. Goldstein, M.
Gorbunov-Posadov, M. Gurvich, E.
Ignatova, O. Ismael, N. Canadian Geotechnical Journal, Vol. CrossRef Google Scholar Izbash, Yu. Jennings, J. Klepikov, S.
Krutov, V. Litvinov, I. Lomize, G. Lysenko, M. The total load required for the test shall be available at the site before the test is started. Accurately measure each load, and apply it in such a manner that all of the load reaches the soil as a static load, without impact, uctuation, or eccentricity.
NOTE 4Longer time intervals may be determined by maintaining the load until the settlement has ceased or the rate of settlement becomes uniform. However, maintain any type of time interval so selected for each load increment in all tests of any series.
After completion of observations for the last load increment, release this applied load in three approximately equal decrements. Continue recording rebound deections until the deformation ceases or for a period not smaller than the time interval of loading. NOTE 5The following alternative loading procedure is also permissible: Apply the load to the soil in increments corresponding to settlement increments of approximately 0.
After the application of each settlement increment, measure the load at some xed time intervals, for example, 30 s, 1 min, 2 min, 4 min, 8 min, and 15 min, after load application, until the variation of the load ceases or until the rate of variation of the load, on a load versus logarithm-of-time scale becomes linear.
Continue loading in selected settlement increments. Termination of tests and unloading are made in the same manner as in 4.
Report 5. Precision and Bias 6. Make settlement measurements as soon as D loading test has not been determined. No available methods provide absolute values for the bearing capacity of soil in place against which this method can be compared. The variability of the soil and the resulting disturbance of the soil under the loading plate do not allow for the repetitive duplication of test results required to obtain a meaningful statistical evaluation.
The subcommittee is seeking pertinent data from users of this method which may be used to develop meaningful statements of precision and bias. Keywords 7. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Scope 1. This test method can be used as part of a procedure for soil investigation for foundation design.
It gives information on the soil only to a depth equal to about two diameters of the bearing plate, and takes into account only part of the effect of time. The SI units given in parentheses are for information only.
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. Signicance and Use 2. The bearing capacity of a soil is not simply a soil strength parameter, but it also depends on the magnitude and distribution of the load, dimension, and geometry of the loading plate and depth of embedment or elevation of testing.
This bearing capacity can be used in soil investigations and for the design of foundations.
Apparatus 3. The force-measuring devices should be capable of recording the load with an error 1 This test method is under the jurisdiction of ASTM Committee D on Soil and Rock and is the direct responsibility of Subcommittee D Current edition approved March 15, Published May Originally published as D 52 T.
Last previous edition D 72 e1. As an alternative, three small concrete footings of the size mentioned or larger can be cast in-situ.
Such footings must have a depth of not less than two thirds of their width. NOTE 1Testing assemblies may vary widely, depending on job conditions, testing requirements, and equipment available. The testing assembly and program should be planned in advance and approved by the supervising engineer, and in general can permit considerable latitude in details within the specic requirements noted above and outlined in the following test procedure.