Autor: Kusio, T. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Comparative model tests of SDP and CFA pile groups in non-cohesive soil
Autorzy:: Krasiński, A.
Kusio, T.
Tematy:: CFA piles
screw displacement pile
deep foundation
model tests
group of piles; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/178182.pdf Link otwiera się w nowym oknie
Opis:: The research topic relates to the subject of deep foundations supported on continuous flight auger (CFA) piles and screw displacement piles (SDP). The authors have decided to conduct model tests of foundations supported on the group of piles mentioned above and also the tests of the same piles working as a single. The tests are ongoing in Geotechnical Laboratory of Gdańsk University of Technology. The description of test procedure, interpretation and analysis of the preliminary testing series results are presented in the paper.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Pile model tests using strain gauge technology
Autorzy:: Krasiński, A.
Kusio, T.
Tematy:: screw displacement pile
CFA piles
deep foundation
model tests
group of piles; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/178927.pdf Link otwiera się w nowym oknie
Opis:: Ordinary pile bearing capacity tests are usually carried out to determine the relationship between load and displacement of pile head. The measurement system required in such tests consists of force transducer and three or four displacement gauges. The whole system is installed at the pile head above the ground level. This approach, however, does not give us complete information about the pile–soil interaction. We can only determine the total bearing capacity of the pile, without the knowledge of its distribution into the shaft and base resistances. Much more information can be obtained by carrying out a test of instrumented pile equipped with a system for measuring the distribution of axial force along its core. In the case of pile model tests the use of such measurement is difficult due to small scale of the model. To find a suitable solution for axial force measurement, which could be applied to small scale model piles, we had to take into account the following requirements: – a linear and stable relationship between measured and physical values, – the force measurement accuracy of about 0.1 kN, – the range of measured forces up to 30 kN, – resistance of measuring gauges against aggressive counteraction of concrete mortar and against moisture, – insensitivity to pile bending, – economical factor. These requirements can be fulfilled by strain gauge sensors if an appropriate methodology is used for test preparation (Hoffmann [1]). In this paper, we focus on some aspects of the application of strain gauge sensors for model pile tests. The efficiency of the method is proved on the examples of static load tests carried out on SDP model piles acting as single piles and in a group.
Dostawca treści:: Biblioteka Nauki

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