Temat: cone penetration tests - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: On the interpretation of seismic cone penetration test (SCPT) results
Autorzy:: Bagińska, I.
Janecki, W.
Sobótka, M.
Powiązania:: https://bibliotekanauki.pl/articles/178824.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: badania sejsmiczne
fala sejsmiczna
test sejsmiczny
SCPTU
sondowanie CPTU
penetracja stożka
testy CPTU
seismic sounding SCPTU
cone penetration
cone penetration tests CPTu
seismic research
seismic wave
seismic tests
Opis:: The paper deals with the methodology of performing and interpretation of seismic cone penetration test (SCPT). This type of test is used to determine velocity of the seismic wave in the soil medium. This study is focused on shear wave. The wave is triggered on the ground surface by hitting an anvil with a sledgehammer. Then, vibrations induced at different depths are measured. Based on recorded measurements wave velocity (Vs) and thus also small strain shear modulus Gmax may be calculated. An interpretation of exemplary seismic test results is presented. Crossover and cross-correlation methods are discussed and another, more adequate one is featured and then applied in the interpretation example. Conditions for correct test performance and interpretation are discussed.
Źródło:: Studia Geotechnica et Mechanica; 2013, 35, 4; 3-11
0137-6365
2083-831X
Pojawia się w:: Studia Geotechnica et Mechanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Steady state of solid-grain interfaces during simulated CPT
Autorzy:: Butlanska, J.
Arroyo, M.
Gens, A.
Powiązania:: https://bibliotekanauki.pl/articles/178667.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: cone penetration
granular material
CPT tests
steady state
penetracja stożka
sondowanie CPT
stan równowagi
materiał ziarnisty
Opis:: It has recently been shown (Arroyo et al. [1]) that 3D DEM models are able to reproduce with reasonable accuracy the macroscopic response of CPT performed in calibration chambers filled with sand. However, the cost of each simulation is an important factor. Hence, to achieve manageable simulation times the discrete material representing the sand was scaled up to sizes that were more typical of gravel than sand. A side effect of the scaled-up discrete material size employed in the model was an increased fluctuation of the macro-response that can be filtered away to observe a macroscopic steady-state cone resistance. That observation is the starting point of this communication, where a series of simulations in which the size ratio between penetrometer and particles is varied are systematically analyzed. A micromechanical analysis of the penetrometer–particle interaction is performed. These curves reveal that a steady state is arrived also at the particle–cone contact level. The properties of this dynamic interface are independent of the initial density of the granular material.
Źródło:: Studia Geotechnica et Mechanica; 2013, 35, 4; 13-22
0137-6365
2083-831X
Pojawia się w:: Studia Geotechnica et Mechanica
Dostawca treści:: Biblioteka Nauki

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