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ASTM D 6430 : 2018

Current
Current

The latest, up-to-date edition.

Standard Guide for Using the Gravity Method for Subsurface Site Characterization
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-01-2018

1.1Purpose and Application:

1.1.1This guide summarizes the equipment, field procedures, and interpretation methods for the assessment of subsurface conditions using the gravity method. However, this standard does not address the use of marine, airborne, or satellite gravity measurements.

1.1.2The gravity method described in this guide is applicable to site characterization of a wide range of subsurface conditions.

1.1.3Gravity measurements indicate variations in the earth's gravitational field caused by lateral differences in the density of the subsurface soil or rock or the presence of natural voids or man-made structures. By measuring spatial changes in the gravitational field, variations in subsurface conditions can be determined.

1.1.4Detailed gravity surveys (commonly called microgravity surveys) are used for near-surface geologic site characterizations and geotechnical, environmental, and archaeological studies. Geologic and geotechnical applications include location of buried channels, bedrock structural features, voids, and caves, and low-density zones in foundations. Environmental applications include site characterization, groundwater studies, landfill characterization, and location of underground storage tanks (1)2.

1.2Limitations:

1.2.1This guide provides an overview of the gravity method. It does not address the details of the gravity theory, 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 the gravity method be familiar with the references cited and with the Guides D420, D5753, D6235, and D6429, and Practices D5088, and D5608.

1.2.2This guide is limited to gravity measurements made on land. The gravity method can be adapted for a number of special uses: on land, in a borehole, on water, and from aircraft and space. A discussion of these other gravity methods, including vertical gravity gradient measurements, is not included in this guide.

1.2.3The approaches suggested in this guide for the gravity method are the most commonly used, widely accepted, and proven. However, other approaches or modifications to the gravity method that are technically sound may be substituted.

1.2.4This guide offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education, experience, and should be used in conjunction with professional judgment. Not all aspects of this guide may be applicable in all circumstances. This ASTM document is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process.

1.3Units—The values stated in SI units are regarded as standard. No other units of measurement are included in this standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method.

1.4Precautions:

1.4.1It is the responsibility of the user of this guide to follow any precautions in the equipment manufacturer's recommendations and to establish appropriate health and safety practices.

1.4.2If this guide is used at sites with hazardous materials, operations, or equipment, it is the responsibility of the user of this guide to establish appropriate safety and health practices and to determine the applicability of any regulations prior to use.

1.5This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Committee
D 18
DocumentType
Guide
Pages
10
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 420 : 2018 Standard Guide for Site Characterization for Engineering Design and Construction Purposes
ASTM D 5092/D5092M : 2016 Standard Practice for Design and Installation of Groundwater Monitoring Wells

ASTM D 653 : 2007 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 6235 : 2004 Standard Practice for Expedited Site Characterization of Vadose Zone and Ground Water Contamination at Hazardous Waste Contaminated Sites
ASTM D 5088 : 2002 Standard Practice for Decontamination of Field Equipment Used at Nonradioactive Waste Sites
ASTM D 6429 : 1999 : R2011 : EDT 1 Standard Guide for Selecting Surface Geophysical Methods (Withdrawn 2020)
ASTM D 6235 : 2004 : R2010 Standard Practice for Expedited Site Characterization of Vadose Zone and Groundwater Contamination at Hazardous Waste Contaminated Sites
ASTM D 6429 : 1999 Standard Guide for Selecting Surface Geophysical Methods
ASTM D 5088 : 2015 : REV A Standard Practice for Decontamination of Field Equipment Used at Waste Sites
ASTM D 6429 : 2020 Standard Guide for Selecting Surface Geophysical Methods
ASTM D 5753 : 2005 Standard Guide for Planning and Conducting Borehole Geophysical Logging
ASTM D 5608 : 1994 Standard Practice for Decontamination of Field Equipment Used at Low Level Radioactive Waste Sites
ASTM D 653 : 2022 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 5088 : 2020 Standard Practice for Decontamination of Field Equipment Used at Waste Sites
ASTM D 6429 : 1999 : R2006 Standard Guide for Selecting Surface Geophysical Methods
ASTM D 653 : 2020 : EDT 1 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 5088 : 1990 Standard Practice for Decontamination of Field Equipment Used at Nonradioactive Waste Sites
ASTM D 6235 : 1998 : REV A Standard Practice for Expedited Site Characterization of Vadose Zone and Ground Water Contamination at Hazardous Waste Contaminated Sites
ASTM D 653 : 2021 : REV A Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 6235 : 2018 Standard Practice for Expedited Site Characterization of Vadose Zone and Groundwater Contamination at Hazardous Waste Contaminated Sites
ASTM D 5608 : 2016 Standard Practices for Decontamination of Sampling and Non Sample Contacting Equipment Used at Low Level Radioactive Waste Sites
ASTM D 653 : 2021 Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 653 : 2021 : REV B Standard Terminology Relating to Soil, Rock, and Contained Fluids
ASTM D 5608 : 2010 Standard Practices for Decontamination of Field Equipment Used at Low Level Radioactive Waste Sites
ASTM D 5753 : 2005 : R2010 Standard Guide for Planning and Conducting Borehole Geophysical Logging
ASTM D 6429 : 2023 Standard Guide for Selecting Surface Geophysical Methods
ASTM D 5088 : 2015 Standard Practice for Decontamination of Field Equipment Used at Waste Sites
ASTM D 5608 : 2001 Standard Practice for Decontamination of Field Equipment Used at Low Level Radioactive Waste Sites
ASTM D 5088 : 2002 : R2008 Standard Practice for Decontamination of Field Equipment Used at Waste Sites
ASTM D 5608 : 2001 : R2006 Standard Practices for Decontamination of Field Equipment Used at Low Level Radioactive Waste Sites
ASTM D 5753 : 2018 Standard Guide for Planning and Conducting Geotechnical Borehole Geophysical Logging
ASTM D 5753 : 1995 : EDT 1 Standard Guide for Planning and Conducting Borehole Geophysical Logging (Withdrawn 2005)

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