Science

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 Status: Withdrawn · Replaced by: ASTM D Buy this standard.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 .

Author: Shasho Akinoshura
Country: South Africa
Language: English (Spanish)
Genre: Literature
Published (Last): 23 April 2006
Pages: 362
PDF File Size: 16.20 Mb
ePub File Size: 4.34 Mb
ISBN: 347-7-54163-906-2
Downloads: 39423
Price: Free* [*Free Regsitration Required]
Uploader: Kazrara

It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard. Active view current version of standard. A preferred method intended to obtain data for use on critical projects where the highest quality data is required is included.

Soil and Rock II: This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. Several types of commercially available receivers and recording systems can also be used to conduct an acceptable downhole survey. The quality of the results produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities.

Two methods are discussed, which include using either one or two downhole sensors receivers. Please login to your authorized staff account to use this feature.

ASTM D7400 – 17

Read more about SIS Subscriptions. In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. Another assumption inherent in the test methods is that the stratigraphic medium to be characterized can have transverse isotropy.

  AKAI EIE PRO PDF

In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. 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. Special consideration should be given to the types asgm receivers used and their configuration.

NDT System Add-On — Crosshole / Downhole Seismic

A preferred method intended to obtain data for use on critical projects where the highest quality data is required is included. 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.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Sorry, this content is unavailable because your astk does not support iframes.

This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. Register for astmm trial account. Click here for Agents. Enter your personal 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.

The Downhold Seismic DS investigations are similar to CS investigations, but require only one borehole to provide shear and compressional velocity wave profiles. Special consideration should be given to the types of receivers used and their configuration to provide an output that accurately reflects the input motion.

  IN THE BUBBLE THACKARA PDF

If you like to setup a quick demo, let us know at support madcad. There were no books found for the applied search filters.

Another important use of estimated shear wave velocities in geotechnical design is in the liquefaction assessment of soils. These test methods primarily concern the actual test procedure, data interpretation, and specifications for equipment which will yield uniform test results.

Shopping cart Close cart 0, foreach: Contact us svenska Login. Accurate in-situ P-wave and S-wave velocity profiles are essential in geotechnical foundation designs. Are you sure you want to empty the cart?

D Standard Test Methods for Downhole Seismic Testing, –

Search book title Enter keywords for book title search. In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. Please note that the selected standard is invalid. In addition, they are representative d7040 the significant digits that x7400 generally be retained. No items in cart.

Combining values from the two systems may result in nonconformance with this standard. Historical Version s – view previous versions of standard. Subscribe on standards – Read more. Your shopping cart is empty.