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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 1 to 2 of 2 (0.042 seconds)

Spelling suggestions: "subject:"silberbergbau"" "subject:"meeresbergbau""

1

Obosnovanie parametrov kovšej zemlečerpatel'nych snarjadov dlja glubokovodnoj dobyči organo-mineral'nych osadkov / Bucket tool design for mining deep-sea organic-mineral sediments

Shepel, Taras 21 April 2015 (has links) (PDF)
The thesis is devoted to determining the parameters of the bucket to increase productivity of dredgers while mining deep-water organic-mineral sediments. It was achieved by increasing the fill factor through determining the rational geometrical parameters of the bucket. Analytical dependencies of the rational height and length of the bucket on the cutting parameters and physical-and-mechanical properties of the excavated sediments were determined. Expressions for defining forces while digging plasticity water-saturated soils were developed. Experimental investigations of the process of digging deep-water organic-mineral sediments in laboratory conditions and in the real conditions of operating single-bucket dredger in the Black Sea at the depth of 1885 m were carried out. The technique for calculation of the bucket\'s parameters was developed.
Tiefseebergbau
Baggermaschine
Grabgefaess
Grabgefaessfüllung
geometrische Parametern
Grabkraft
plastischer wassersatter Boden
organisch-mineralische Sedimente
deep-sea mining
bucket dredger
bucket
bucket filling process
geometrical parameters
filling resistance
plastic water-saturated soil
organic-mineral sediments
ddc:624
Tiefsee
Meeresbergbau
Abbau
Tiefseesediment
Schaufelform
Konstruktion
2

Obosnovanie parametrov kovšej zemlečerpatel'nych snarjadov dlja glubokovodnoj dobyči organo-mineral'nych osadkov

Shepel, Taras 21 April 2015 (has links)
The thesis is devoted to determining the parameters of the bucket to increase productivity of dredgers while mining deep-water organic-mineral sediments. It was achieved by increasing the fill factor through determining the rational geometrical parameters of the bucket. Analytical dependencies of the rational height and length of the bucket on the cutting parameters and physical-and-mechanical properties of the excavated sediments were determined. Expressions for defining forces while digging plasticity water-saturated soils were developed. Experimental investigations of the process of digging deep-water organic-mineral sediments in laboratory conditions and in the real conditions of operating single-bucket dredger in the Black Sea at the depth of 1885 m were carried out. The technique for calculation of the bucket\'s parameters was developed.
info:eu-repo/classification/ddc/624
ddc:624

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