Geoscience Reference
In-Depth Information
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1936 Cell test of Keverling Buisman (Fig 1.11). In a cell, a cylindrical sample
surrounded by an impervious membrane is supported by water pressure at the
side and loaded on top. In this way a three-dimensional stress-strain behaviour
and the slip-shear behaviour can be observed and measured. Keverling
Buisman also developed a hollow cylinder cell test with a double membrane.
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1937 Large-scale application of the Franki pile for the Maes tunnel.
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1938 Relation CPT and pile bearing capacity.
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1939 Barkan invents the vibration drill method.
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1941 Relation CPT and blow count (the blow count is the number of blows
required to hammer a pile 25 mm deeper).
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1942 Biot publishes the complete equations for two-phase mechanics in porous
media (he did it actually already in 1935 in an obscure journal).
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1942 Opening of the Maes tunnel. The project started in 1937.
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1942 Ackermann's sampler.
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1942 Koppejan combines the theory of Terzaghi and Keverling Buisman.
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1943 Application of Rütteldrückverfahren, a vibrating needle, for soil densifi-
cation for the foundation of a submarine bunker in Rotterdam.
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1947 Mechanical sleeve cone of Vermeiden.
1948 2 nd Int Soil Mech Congress in Rotterdam. Rotterdam was chosen during
the first conference because of pioneering work of the Dutch.
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1948 Bakker invents the electrical cone test. The shaft friction of cone rods
could not anymore disturb the CPT measurements
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1949 Establishment of NSSMFE.
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1952 Begemann invents the mechanical sleeve cone test.
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1952 Koppejan designs the pile bearing capacity rule (the 4D-8D rule).
Figure 1.14 The Van Brienenoord bridge in 1959, crossing the largest Rhine branch
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1953: Flood disaster in South-West Netherlands, many drowned, huge damage.
As a consequence the Delta works project starts that shortens the coastline
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