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Wyszukujesz frazę "Ménard modulus" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Podstawowe zasady i nowe możliwości wykorzystywania wyników badań presjometrycznych
Basic principles and new possibilities of using pressuremeter test results
Autorzy:
Tarnawski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2075704.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
badania presjometryczne
moduł Ménarda
naprężenie graniczne
naprężenie pełzania
analiza błędów
pressuremeter tests
Ménard modulus
limit pressure
creep pressure
error analysis
Opis:
This article is an attempt to briefly summarize the achievements of the pressuremeter research methodology and its development paths in over sixty years of its existence. The current rules for the tests execution and interpretation of their results as well as their application in the foundation design and in geological-engineering evaluation of the sites are discussed and subjected to critical analysis. Attention has been drawn to the unique ability to identify and estimate errors that may occur during testing, and the last chapter outlines the prospects for the development of this research technique. The author has also presented his accomplishments, such as the introduction of the concept of maximum and minimum settlement, a new way for determining the creep pressure, and a simplified way of defining the so-called standard settlement. In conclusion, the author has drawn attention to the numerous advantages of the pressuremeter method. These include, in particular, a direct assessment of the two most important characteristics of the soil: strength (bearing capacity) and compressibility, reduction of scale effect and the ability to test the soil at any depth.
Źródło:
Przegląd Geologiczny; 2017, 65, 10/2; 725--736
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Perfect Ménard Pressuremeter Curve
Autorzy:
Tarnawski, M.
Powiązania:
https://bibliotekanauki.pl/articles/241170.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
Ménard Pressuremeter
test curve
pressuremeter modulus general scheme implicit in time
finite volume method
extreme flows
Opis:
As it is commonly known, to obtain a good quality Ménard Pressuremeter Test a perfectly drilled borehole (pocket) is required. It should be of proper size, only slightly greater than the diameter of the pressuremeter probe, and its walls should remain undisturbed. Unsatisfactory shapes of pressuremeter curves result usually from a poor quality drilling. Typical examples of such curves are given in all handbooks dealing with pressuremeters. They correspond to situations when the tested cavity is too large, too mall or its walls are collapsed. There is, however, plenty of room between the pressure and volume axes. An infinite number of various curves can run through this field and only one of them is really the proper one. An interpreter should be able to evaluate the quality of any curve obtained, estimate the source, the direction and the approximate scale of error and finally to draw conclusions on how to improve the drilling technique to avoid or minimize any future errors. To be able to do that, one needs to understand how the perfect curve should look. The present paper is a study on shapes of pressuremeter curves based on the author's 25years' experience.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2004, 51, 4; 387-402
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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