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 Status: Withdrawn ยท Replaced by: ASTM D Buy this standard.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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Heavily-damped sensors should not be used so that spectral smearing, phase shifting, and latency response between sensors is avoided.

Please sign into an account with a subscription to this content, or email for help at support madcad. Work Item s – proposed revisions of this standard. Enter your account email address to request a password reset: The DS method uses a hammer source at the surface to impact a wood plank and generate shear and compressional waves.

ASTM D – 14 Standard Test Methods for Downhole Seismic Testing

In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. You currently cannot view this content. Shopping cart Close cart 0, foreach: Link to Active This link will always route to the current Active version of the standard.

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 elastic, elasto-plastic, and failure. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.

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In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. The energy from these impacts is then received by a pair of matching three component geophone receivers, which have been lowered downhole and are spaced 5 to 10 ft 1. Subscribe on standards with our subscription service. 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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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.

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.

Inch-pound units are provided for convenience. Also included is an optional method intended for use on projects which do not require measurements of a high degree of precision. It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering design.

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ASTM D7400 – 17

Subscribe on standards – Read more. In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. The Downhold Seismic DS investigations are similar to CS investigations, but require only one borehole to provide shear and compressional velocity wave profiles.

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. When you use our service you can be assured the latest editions and easy access. Remember me for one month.

Standard Test Methods for Downhole Seismic Testing

Heavily-damped sensors should not be used so that spectral smearing, phase shifting, and latency response between sensors is avoided. Contact us svenska Login. Several types of commercially available receivers and recording systems can also be used to conduct an acceptable d700 survey. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.

Active view astj version of standard. Please login to your authorized staff account to use this feature.

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Message to your colleague. Another assumption inherent in the d7400 methods is that the stratigraphic medium to be characterized can have transverse isotropy. Link to Active This link will always route to the current Active version of the standard.

Content only available by subscription. The values stated in inch pound units may not be exact equivalents; therefore, they shall be used independently of the SI system.

It is beyond the scope of astk test methods to consider significant digits used in analysis methods for engineering design. The electronic file may not be reproduced in any way. Sorry, this content is unavailable because your browser does not support iframes. X7400 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. What is a standard?

Standard – Standard Test Methods for Downhole Seismic Testing ASTM D –

Historical Version s – view previous versions of standard. The standard is now in your shopping cart. Reliable results depend on many factors; Practice D provides a means of evaluating some of those factors.

The instruments are coupled to the side of the grouted borehole inclinometer casing, allowing for the e7400 of shear and compressional waves as they pass between the receivers. 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. 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 d7040 use.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.