ASTM International

Standard Test Methods for Individual Piles in Permafrost Under Static Axial Compressive Load
 N D5780

Annotation

These test methods cover procedures for testing individual vertical piles to determine response of the pile to static compressive load applied axially to the pile. These test methods are applicable to all deep foundation units in permafrost that function in a manner similar to piles regardless of their method of installation.

NOTE 1 - Apparatus and procedures designated "optional" are to be required only when included in the project specifications or if not specified, may be used only with the approval of the engineer responsible for the foundation design. The word "shall" indicates a mandatory provision and "should" indicates a recommended or advisory provision. Imperative sentences indicate mandatory provisions. Notes, illustrations, and appendixes included herein are explanatory or advisory.

NOTE 2 - This test method does not include the interpretation of test results or the application of test results to foundation design. See Appendix X1 for comments regarding some of the factors influencing the interpretation of test results. A qualified geotechnical engineer should interpret the test results for predicting pile performance and capacity.

Three different test methods are included within this standard. Method A is the standard method combining the results from loading two separate piles with the possibility of a third alternate pile. Method B is the alternate method combining the results from loading three separate piles with the possibility of a fourth alternate pile. Method C is a confirmation method requiring the testing of one pile with the possibility of a second alternate. Method C is applicable only where prior data are available.

All recorded and calculated values shall conform to the guide for significant digits and rounding established in Practice D6026.