- 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