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 Status: Withdrawn ยท Replaced by: ASTM D Buy this standard.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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It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering design. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Another assumption inherent in the qstm methods is that the stratigraphic medium to be characterized can have transverse isotropy.

Another important use of estimated shear wave velocities in geotechnical design is in the liquefaction assessment of soils. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Reporting of test results in units other than SI shall not be regarded as non-conformance with this standard. Subscribe on standards – Read more. In addition, they are representative of the significant digits that should generally be retained.

The electronic file may not be reproduced in any way. Shopping cart Close cart 0, foreach: Accurate in-situ P-wave and S-wave velocity profiles are essential in geotechnical foundation designs. Contact Olson Instruments when adding on to an existing system, or purchasing multiple systems as some of the components are common to other test methods.

D Standard Test Methods for Downhole Seismic Testing, –

These parameters are used in both analyses of soil behavior under both static and dynamic loads where the elastic constants are input variables into the models defining the different states of deformations such as xstm, elasto-plastic, and failure. In addition, they are representative of the significant atm that should generally be retained. These test methods primarily concern the actu. Data reduction and interpretation is limited to the identification of various seismic wave types, apparent velocity relation to true velocity, aastm computations, use of Snell’s law of refraction, and assumptions.

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In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. Special consideration should be given to the types of receivers used and their configuration. Subscribe on standards with our subscription service.

These test methods primarily concern the actual test procedure, data interpretation, and specifications for equipment which will yield uniform test results. Work Item s – proposed revisions of this standard. In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs.

Also included is an optional method intended for use on projects which do not require measurements of a high degree of precision. Other items addressed include source-to-receiver spacing, drilling, casing, grouting, a procedure for borehole installation, and conducting actual borehole and seismic cone tests. Soil and Rock II: The Crosshole Seismic CS system and method determine shear asmt compressional wave velocity versus depth profiles.

The OE Website is loaded with Tech Brief and project photos using the equipment shown on this website. When you use our service you can be assured the latest editions and easy access. In this d400, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Inch-pound units are provided for convenience. Two methods are discussed, which include using either one or two downhole sensors receivers.

ASTM D – 14 Standard Test Methods for Downhole Seismic Testing

General terms and conditions Cookies och Adtm Disclaimer Contact. In addition, the material damping can be determined from CS tests. What is a standard?

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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. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.

The most complete version of this downhole system, as manufactured by Olson Instruments, is comprised of a borehole source capable of generating shear and compressional waves and a pair of matching three component triaxial geophone receivers. Please login to your authorized staff account to use this feature. Other items addressed include source-to-receiver spacing, drilling, casing, grouting, a procedure for borehole installation, and conducting actual borehole and seismic cone tests.

This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. There were no books found for the applied search filters. Please sign into an account with a subscription to this content, or email for help at support madcad. It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard.

Standard Test Methods for Downhole Seismic Testing

Search book title Enter keywords for book title search. Several types of commercially available receivers and recording systems can also be used to conduct an acceptable downhole survey. Several types of commercially available receivers and recording systems can also be used to conduct an acceptable downhole survey. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

This is typically accomplished by coupling a plank to the ground near the borehole and then impacting the plank in the vertical and horizontal directions.