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The Delft Sand, Clay & Rock Cutting Model
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CC BY-NC-SA
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In dredging, trenching, (deep sea) mining, drilling, tunnel boring and many other applications, sand, clay or rock has to be excavated. This book gives an overview of cutting theories. It starts with a generic model, which is valid for all types of soil (sand, clay and rock) after which the specifics of dry sand, water saturated sand, clay, atmospheric rock and hyperbaric rock are covered. For each soil type small blade angles and large blade angles, resulting in a wedge in front of the blade, are discussed. For each case considered, the equations/model for the cutting forces, power and specific energy are given. The models are verified with laboratory research, mainly at the Delft University of Technology, but also with data from literature.

Subject:
Applied Science
Career and Technical Education
Engineering
Maritime Science
Material Type:
Textbook
Author:
Sape A. Miedema
Date Added:
04/27/2020
OpenStax Biology 2e, Plant Structure and Function, Plant Reproduction, Asexual Reproduction
Unrestricted Use
CC BY
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By the end of this section, you will be able to do the following:

Compare the mechanisms and methods of natural and artificial asexual reproduction
Describe the advantages and disadvantages of natural and artificial asexual reproduction
Discuss plant life spans

Subject:
Applied Science
Material Type:
Module
Date Added:
09/21/2018