Terminology 3.1 Definitions-For definitions of terms in this test method, refer to Terminology D 653. 1.4.2 Procedure B-The Equal Volume Increment Method.ģ. 1.4 Two alternate testing procedures are provided as follows: 1.4.1 Procedure A-The Equal Pressure Increment Method. This test method is limited to the pressuremeter which is inserted into predrilled boreholes or, under certain circumstances, is inserted by driving. 1.3 This test method does not cover the self-boring pressuremeter, for which the hole is drilled by a mechanical or jetting tool inside the hollow core of the probe. Knowledge of the type of soil in which each pressuremeter test is to be made is necessary for assessment of (1) the method of boring or probe placement, or both, (2) the interpretation of the test data, and (3) the reasonableness of the test results. 1.2 This test method includes the procedure for drilling the borehole, inserting the probe, and conducting pressuremeter tests in both granular and cohesive soils, but does not include high pressure testing in rock. To obtain viable test results, disturbance to the borehole wall must be minimized. A pressuremeter test is an in situ stress-strain test performed on the wall of a borehole using a cylindrical probe that is expanded radially. Scope * 1.1 This test method covers pressuremeter testing of soils.

Referenced Documents 2.1 ASTM Standards: D 1587 Practice for Thin-Walled Tube Sampling of Soils2 D 2113 Practice for Diamond Core Drilling for Site Investigation2ġ. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.Ģ. A number in parentheses indicates the year of last reapproval. Prebored Pressuremeter Testing in Soils1 This standard is issued under the fixed designation D 4719 the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

Astm pressuremeter test