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    The Delft Sand, Clay & Rock

    Cutting Model

    3rd Edition

    Screen Shot 2020-08-13 at 2.55.00 PM.png

    Sape A. Miedema

    The cover shows a father and a son (or a teacher and a student) cutting sand on the beach, making a soil structure, with the city of Delft in the background and a historic dredge in the water. The cover has been designed by Riëlle van der Meijden of About Colors ( and is inspired by:

    Screen Shot 2020-08-13 at 2.56.45 PM.png




    The comic book Oscar & Isidoor was made by Frederic Antonin Breysse (1907-2001) in the period 1945-1955. The comics were first published in the French magazine “Coeurs Vaillants” and later in the Dutch magazine “Taptoe”.

    This comic book was the first comic book read by the author around 1960.






    Screen Shot 2020-08-13 at 2.58.28 PM.png




    The painting “View on Delft” is an oil painting by Johannes Vermeer (1632-1675) painted in 1660-1661.

    The painting shows the city of Delft, which is the residence of the author since 1974 and the location of Delft University of Technology, established in 1842.








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    In 1761 a dredging machine was invented by F.X. dÁrles de Liniere for the maintenance of rivers and canals in Holland. To explain the patent, he added a color drawing. The patent was accepted by the “Staten van Holland”.

    This drawing is used in the lectures of the author to show how dredging started.




    The Delft Sand, Clay & Rock Cutting Model

    3rd Edition

    Screen Shot 2020-08-13 at 3.07.16 PM.png

    Sape A. Miedema

    © 2014-2017: S.A. Miedema

    Preliminary edition:
    ISBN Book: 978-94-6186-249-5 ISBN EBook: 978-94-6186-252-5

    1st edition, 2014:
    ISBN Book: 978-1-61499-453-4 ISBN EBook: 978-1-61499-454-1 DOI: 10.3233/978-1-61499-454-1-i

    2nd edition, 2015, version: Friday, February 10, 2017: ISBN Book: 978-94-6186-537-3
    ISBN EBook: 978-94-6186-539-7

    3rd edition, 2019
    ISBN Paperback: 978-94-6366-131-7 ISBN EBook: 978-94-6366-132-4

    This work is licensed under CC BY-NC-SA 4.0