ASTM D7400 PDF

Standard Number, ASTM D – Title, Standard Test Methods for Downhole Seismic Testing. Status, Current. Publication Date, Standard Test Methods for Downhole Seismic Testing. Status: Withdrawn · Replaced by: ASTM D Buy this standard. Price: SEK. PDF. Add to cart. ASTM D Significance and Use. The seismic downhole method provides a designer with information pertinent to the seismic wave velocities of the materials .

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The standard is now in your shopping cart. Subscribe on standards with our subscription service. Combining values from the two systems may result in nonconformance with this standard.

NDT System Add-On — Crosshole / Downhole Seismic

Also included is an optional method intended for use on projects which do not require measurements of a high degree of precision. Special consideration should be given to the types of receivers used and their configuration. Sustainable Development Goals and standardisation, how do they connect?

Soil and Rock II: These test methods primarily concern the actual test procedure, data interpretation, and specifications for equipment which will yield uniform test results. Report error on page. Please login to your authorized staff account to use this feature. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability d740 regulatory limitations prior to use.

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In addition, they are representative of the significant digits that should generally be retained. Other items addressed include source-to-receiver spacing, drilling, casing, grouting, a procedure for borehole installation, and conducting actual borehole and seismic cone tests. There were no books found for the applied search filters. Another assumption inherent in the test methods is that the stratigraphic medium to be characterized can have transverse isotropy.

D74400 addition, the material damping can be determined from CS tests.

When you use our service you can be assured the latest editions and easy access. The DS method uses a hammer source at the surface to impact a wood plank and generate shear and compressional waves.

It asym scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard.

ASTM D – 17 Standard Test Methods for Downhole Seismic Testing

Accurate in-situ P-wave and S-wave velocity profiles are essential in geotechnical foundation astmm. Transverse isotropy is a particularly simple form of anisotropy because velocities only vary with vertical incidence angle and not with azimuth. Search book title Enter keywords for book title search.

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Several types of commercially available receivers and recording systems can also be used to conduct an acceptable downhole survey. A preferred method intended to obtain data for use on critical projects where the highest quality data is required is included.

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You currently cannot view this content. General terms and conditions Cookies och Javascript Disclaimer Contact. Read more about SIS Subscriptions. Please sign into an account with a subscription to this content, or email for help at support madcad. All of Olson Instruments have been researched, tested, and used on-site daily by our sister company, Olson Engineeringworld reknowned for NDT consulting.

Contact us svenska Login. Data reduction and interpretation is limited to the identification of various seismic wave types, apparent velocity relation to true velocity, example computations, use of Snell’s law of refraction, and assumptions.

Are you sure you want to empty the cart? It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard.

ASTM D7400 – 17

These dynamic soil and rock properties are often utilized for earthquake design analyses necessary for certain structures, liquefaction potential studies, site development, and dynamic machine foundation design.

The instruments are coupled to the side of the grouted borehole inclinometer casing, allowing for the detection of shear and compressional waves asmt they pass between the receivers.

Inch-pound units are provided for convenience. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.