Last edited by Zumi
Tuesday, May 5, 2020 | History

2 edition of Expendable Doppler penetrometer found in the catalog.

Expendable Doppler penetrometer

interim report

by R. M. Beard

  • 234 Want to read
  • 38 Currently reading

Published by Civil Engineering Laboratory, Naval Construction Battalion Center in Port Hueneme, Calif .
Written in


Edition Notes

SeriesNCEL Technical note - Civil Engineering Laboratory, Port Hueneme, Calif -- N-1435
The Physical Object
Pagination21 p. :
Number of Pages21
ID Numbers
Open LibraryOL24365404M
OCLC/WorldCa2281810

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  Test of expendable doppler penetrometer system Concur 04/27/ GRAYDAVIS, Governor. PAGE 2 PROJECT#: ND • APPLICANT: Navy LOCATION: Offshore of southeast comer of Naval Amphibious Base, San Diego Co. PROJECT: . Schematic of Expendable Doppler Penetrometer 14 Application of CPT soil classification chart to free fall penetrometer data 16 Schematic diagram and pictures showing deep water and shallow water free fall cone penetrometer developed at the University of Bremen 17 Schematic diagram of an expendable Bathymetric Probe (XBP)

(b) A Doppler penetrometer test to judge the relative soil strength. (c) A sample of even limited depth for grain size and origin determination. Determining the friction angle will be difficult, as representative samples cannot be obtained and the penetrometer test will not provide it. Defense Technical Information Center Sitemap Streamlining Notice. All Collections - Search all of the collections listed below at once. Technical Reports - Scientific and technical (S&T) reports conveying results of Defense-sponsored research, development, test and evaluation (RDT&E) efforts on a wide range of topics. Collection includes both citations and many full-text, downloadable Missing: Doppler penetrometer.


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Expendable Doppler penetrometer by R. M. Beard Download PDF EPUB FB2

Doppler effect I. An expendable dynamic penetrometer has been developed to measure seafloor penetrability I and undrained shear strength at water depths to 6, meters (20, feet). The penetrometer weighs kN ( pounds) and is meters ( feet) long and 90 mm ( inches) in diameter. Data on the velocity of the penetrometer as it penetrates the seafloor are acquired by a Cited by: Expendable Doppler penetrometer: interim report by Beard, R.

Publication date Topics Penetrometer, Soil penetration test, Shear strength of soils, Doppler effect This book is available with additional data at Biodiversity Heritage Library.

See also Pages: Expendable Doppler penetrometer - NASA/ADS. An expendable penetrometer using the Doppler principle has been developed to expediently test seafloor soils at water depths to 20, feet. The velocity of the penetrometer is measured as it penetrates seafloor soils; from the velocity record, soil penetrability and an estimate of soil strength are available.

This paper describes an expendable dynamic penetrometer for measuring seafloor penetrability and undrained shear strength at water depths to m. The components of the penetrometer are described, procedures for its use are given, and a method for determining soil strength from penetrometer data is by: 6.

An expendable penetrometer using the Doppler principle has been developed expediently test seafloor soils to a depth of 9m (30 ft) at water depths to 6,m (20, ft).

The velocity of the penetrometer is measured as it penetrates seafloor by: An expendable penetrometer using the Doppler principle has been developed to expediently test seafloor soils at water depths to 20, feet. The velocity of the penetrometer is measured as it penetrates seafloor soils; from the velocity record, soil penetrability and.

Abstract. This paper describes an expendable, acoustic, dynamic penetrometer system that is used to determine the undrained shear strength of ocean bottom sediments to a depth of approximately 9 m in water depths to 6 km.

Doppler frequency shifts associated with changing velocities during bottom penetration are measured relative to a highly stable sound source which is attached to a slender.

A design is presented for an expendable seafloor penetrometer system for real time classification of marine sediments and estimate for shear strength. An accelerometer in the nose section of an expendable probe senses deceleration after impact with the ocean bottom and provides this data to the underway launch platform via a two-conductor trailing wire umbilical.

An expendable dynamic penetrometer was used by Beard to measure seafloor penetrability and its undrained shear strength in deep sea regions. A range of dynamic penetrometers were tested by Denness et al. in an attempt to improve data quality and to explore ways of reducing the cost of testing.

They recognised that penetrometers can be used not only as an investigation tool, but also as a. Beard RM () Expendable Doppler penetrometer for deep ocean sediment strength measurements. Technical Report R Naval Civil Engineering Laboratory, Port Hueneme, California.

Expendable Doppler Penetrometer Features and Use The expendable Doppler Penetrometer (XDP) system (fig. 1) is designed to determine the soil strength of various types of ocean seafloors. The system initially measures the instantaneous velocity of a probe with a sound source as it free-falls through the water column and penetrates the seafloor.

Expendable Doppler Penetrometer for Deep Ocean Sediment Measurements—RICHARD M. BEARD A Lightweight m Cone Penetrometer—BARBARA A. JOHNSON AND RICHARD M. BEARD Borehole Shear Tests in a Shallow Marine Environment— RICHARD L. HANDY, JOHN H. SCHMERTMANN, AND ALAN J.

LUTENEGGER Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. 1 Cultural dynamics in a globalized world: proceedings of the Asia-Pacific Research in Social Sciences and Humanities, Depok, Indonesia, Novembertopics in arts and humanities.

1 Free Falling Penetrometers: A Laboratory Investigation in Clay 2 Chow, S. H.1 and Airey, D. W.2 3 ABSTRACT 4 This paper presents the results of a series of laboratory model free falling penetrometer (FFP) 5 tests in kaolin clay.

A thin-shafted FFP has been allowed to free-fall and has also been. Sonatech Announces New Expendable Doppler Soil Penetrometer Sonatech, Inc. of Goleta, Calif., recently introduced the Sonatech Expendable Doppler Penetrometer (EDP) system, designed to determine the undrained shear strength of ocean floor soils by measuring instantaneous velocity of a sound source probe as it falls through the water column and penetrates the sea floor.

Free Expendable Doppler Penetrometer A Performance Evaluation PDF Download. Free Flash MX Mit ActionScript PDF Download.

Read book Les Schtroumpfs Noirs Tome 1 PDF Mobi online free and download other ebooks. Discover free books by George Orwell, who are publishing Novels, Thriller, Poems Amazon,com. Publisher: Port Hueneme, Calif.:Civil Engineering Laboratory, Naval Construction Battalion Center, The Navy has developed a dropped penetrometer called the eXpendable Doppler Penetrometer (XDP).

This penetrometer was originally designed to provide an undrained strength profile in soft, cohesive sediments by measuring the instantaneous velocity (and thus, deceleration) of a sound source probe as it falls through the water column and.

Groundtruth results for dynamic penetrometers in cohesive soils Abstract: Dynamic soil penetrometers are used increasingly as a handy tool for rapid seafloor soil strength profiling.

The U.S. Navy has developed a dynamic penetrometer called the expendable Doppler Penetrometer (XDP) as an effective tool for determining in-situ soil strength in.

Purchase The Penetrometer and Soil Exploration, Volume 1 - 1st Edition. Print Book & E-Book. ISBN. Dynamic soil penetrometers are used increasingly as a handy tool for rapid seafloor soil strength profiling.

The U.S. Navy has developed a dynamic penetrometer called the expendable Doppler.5. Beard, R. M. Expendable Doppler Penetrometer: a Performance Evaluation (US Naval Civil Engineering Laboratory, Port Hueneme, Rep.

TR). Google Scholar.The model anchors were made of stainless steel in three different diameters (d) of 19, 25, and 32 mm, and three slenderness ratios (length divided by diameter; L/d) of 5, 8, and 11 for each diameter, as shown in Fig. different anchor models were used, as depicted in Fig.

geometric parameters of these models along with some further considerations have been listed in Table 1.