ASTM D6429-23

1.1 This guide covers the selection of surface geophysical methods, as commonly applied to geologic, geotechnical, hydrologic, and environmental site investigations and subsequent site characterization, as well as forensic and archaeological applications. These geophysical methods are rarely the sole method used in the site investigation and are often used for pre-screening to guide how and where drilling, sampling or other targeted in situ testing are conducted. This guide does not describe the specific procedures for conducting geophysical surveys. Individual guides have been developed for many surface geophysical methods.

1.2 Surface geophysical methods yield direct and indirect measurements of the physical properties of soil and rock and pore fluids, as well as buried objects.

1.3 This guide provides an overview of applications for which surface geophysical methods are appropriate. It does not address the details of the theory underlying specific methods, field procedures, or interpretation of the data. Numerous references are included for that purpose and are considered an essential part of this guide. It is recommended that the user of this guide be familiar with the references cited (1-27)2 and with Guides D420, D5730, D5753, D5777, D6285, D6430, D6431, D6432, D6820, D7046, and D7128, as well as Practices D5088, D5608, D6235, and Test Methods D4428/D4428M, D7400/D7400M, and G57.

1.4 To obtain detailed information on specific geophysical methods, ASTM standards, other publications, and references cited in this guide, should be consulted.

1.5 The success of a geophysical survey is dependent upon many factors. One of the most important factors is the competence of the person(s) responsible for planning, carrying out the survey, and interpreting the data. An understanding of the method's theory, field procedures, and interpretation along with an understanding of the site geology, is necessary to successfully complete a survey. Personnel not having specialized training or experience should be cautious about using geophysical methods and should solicit assistance from qualified professionals. All references in this standard to the "qualified professional" refers to individuals (such as engineers, soil scientists, geophysicists, engineering geologists or geologists), who have the appropriate experience and, if required by local regulations, applicable certification, licensure or registration. The term "engineering" must be understood to be associated with the practices or activities of that qualified professional.

1.6 Units-The values stated in SI units are to be regarded as standard. The values given in parentheses are

Product Details

Published:

02/15/2023

Number of Pages:

13

File Size:

1 file , 160 KB

Redline File Size:

2 files , 300 KB

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Document History

ASTM D6429-23

ASTM D6429-20

ASTM D6429-99(2011)e1

ASTM D6429-99(2006)