Ce este volumul geotehnic semnificativ?
Volumul semnificativ de investigat este constituit din masa terenului in care se resimt efectele interventiei.
Acestea pot fi:
1 – modificari ale starii de tensiune din cauza cresterii presiunii (ex. fundatii) sau descarcari tensionale (sapaturi)
2 – variatii ale regimului apelor subterane datorate drenajului sau impermeabilizarii induse de lucrari
3 – poluare directa sau indusa de interventii
4 – modificari ale conditiilor de stabilitate ale versantilor datorita variatiilor planimetrice si altimetrice sau schimbarilor in regimul apelor
5 – modificari de mediu datorate acumularilor de materiale provenite din sapaturi
ADANCIME DE INVESTIGARE
In cazul studiilor pentru fundatii, de regula, se neglijeaza efectele terenului situat la adancimi mai mari decat cea pentru care cresterile de saricini sunt mai mici de 1/10, 1/15 din presiunea litostatica efectiva.
Volum semnificativ se proiecteaza in adancime pana la nivelul unde cresterile de tensiune provenite de la incarcaturile de suprafata devin neglijabile (0,2-0,1 q).
Conform Eurocodului 7 adancimea de investigare este indicata in tabelul urmator:
| Fundatie |
Adancime |
In tabel este indicat cu B latimea caracteristica a fundatiei, cu L lungimea pilotului de diamteru d, cu B` latimea mai mica a dreptunghiului care circumscrie grupul de piloti, cu w tasarea generica si cu wf tasarea finala. |
| Fundatii izolate |
(1 ÷ 3)B |
| Grinzi inverse |
| Radier general |
≥B |
| Pilot |
∼L+5d |
| Grup de piloti |
>L+B` |
| Terasamente |
w≤10%•wf |
VOLUM DE INVESTIGAT
Fundatii de suprafata si de adancime
Fundatii de suprafata si adancime: adancimi de investigare
Fundatii de adancime: bulb de presiune
EXCAVATII SI LUCRARI DE SUSTINERE
 |
Lucrari de sustinere
|
Terasamente
|
|
Excavatii sau santuri
|
Am dezvoltat o noua aplicatie gratuita pentru investigarea terenului de fundare (GIT: Ground Investigation and Testing) care permite estimarea adancimii de investigare pentru diverse lucrari si metode, conform: Lancellotta si Clavera, Eurocod 7, Stari tensionale. Aplicatia poate fi descarcata de aici .
Pentru referinte teoretice puteti accesa documentatia tehnica.
SOFTWARE GIT
Author: filippo catanzariti
http://www.geostru.eu Filippo Catanzariti (b. 4 June 1969, Calabria, Italy) is a civil engineer, software developer and entrepreneur.
He graduated in Civil Engineering, geotechnical track, at the University of Calabria in 1996, with a thesis entitled "Programma di calcolo per l'analisi della stabilita dei pendii con metodi numerici avanzati" (A calculation program for slope stability analysis using advanced numerical methods) - the work that became his first commercial product. He has been registered with the Order of Engineers of Reggio Calabria (no. 1839) since 1996.
From 1996 to 1999 he worked as an analyst and software developer specialising in numerical algorithms, in Pascal, Visual Basic, Fortran and Visual C++, and in full-stack web development. He works with advanced 2D and 3D mathematical models and with graphics programming in OpenGL and DirectX.
In 1999 he founded GeoStru, an international geotechnical software house whose catalogue he largely authored: slope stability and rockfall analysis, foundations and retaining structures, finite element analysis, geophysics and site investigation, hydrology and hydrogeology, and reinforced concrete design. Since 2016 he has run SC Engsoft S.r.l. in Cluj-Napoca, Romania, and he is technical and scientific consultant to GoMeeting. His most recent work is GeoStru.ai, a platform delivering geotechnical and civil calculation through natural-language conversation while keeping the analysis itself on deterministic, auditable algorithms.
Between 2005 and 2013 he co-supervised degree theses at the University of Calabria and the Mediterranea University of Reggio Calabria. He teaches accredited professional-development courses for geologists and engineers under accreditation from the Italian Consiglio Nazionale dei Geologi.
His peer-reviewed work includes papers in Green World Journal (2021), Marine and Petroleum Geology (2022), Journal of Mediterranean Earth Sciences (2022), Geosciences (2024) and Bulletin of Engineering Geology and the Environment (2026), together with memorie at the XXVII and XXVIII Italian National Geotechnical Conferences. He co-authored "Terre rinforzate" (EPC Editore, 2023) and "Terrae Motus".
He has been a member of AGI, ISRM, ISSMGE and AGI-IGS since 2014, and holds a certificate from AGS (Association of Geotechnical & Geoenvironmental Specialists).
ORCID: 0009-0001-2495-6395 - Scopus Author ID: 57936189800 - Google Scholar: ZiY1VZUAAAAJ
