Comparatie rezultate SPW vs rezultate Exemplu 3 ( Ghid de proiectare geotehnica/Proiectarea geotehnica a lucrarilor de sustinere)
Prezentul document prezinta comparatia dintre rezultatele obtinute pentru calculul unui perete ingropat liber la partea superioara si incastrat in teren in programul SPW si in Exemplul 3 pagina 135 din Ghidul de proiectare geotehnica/Proiectarea geotehnica a lucrarilor de sustinere
Perete ingropat liber la partea superioara si incastrat in teren
Caracteristici teren:
Inaltimea excavatiei: h=3.00 m
Pentru articolul complet click aici…
SPW
Metoda Coulomb (Rankine pentru δ=0)
Metoda lui Coulomb reuseste sa tina cont de variabilele cele mai semnificative, in special in ceea ce priveste fenomenul de frecare care se genereaza la interfata structura-teren. Pentru teren omogen si uscat diagrama presiunilor este liniara cu urmatoarea distributie (calculata la adancimea z):
Pentru articolul complet click aici…
Metoda echilibrului limita ( LEM )
Metoda echilibrului limita consta in cautarea de solutii la problema de verificare sau de proiectare, care sunt compatibile doar cu aspectul static al problemei. In principiu se rationeaza in termeni de echilibru al unui corp rigid, fara a acorda atentie congruentei cinematice a deplasarilor. Principalele scheme de calcul la care se face referinta sunt urmatoarele:
- Palplansa in consola
- Palplansa ancorata cu extrema libera
- Palplansa ancorata cu extrema fixa
Palplansa in consola: calculul adancimii limita de incastrare
Pentru palplansa/lucrarea de sustinere neancorata, stabilitatea este asigurata de rezistenta pasiva a terenului aval de aceasta. Din echilibrul momentelor fata de centrul de rotatie se obtine:
Ghid de proiectare geotehnica
Pentru articolul complet click aici…
SPW – Software pentru proiectarea si calculul lucrarilor de sustinere de tip pereti mulati, palplanse (metalice, din lemn sau din ciment armat), pereti din piloti sau micropiloti forati. Metodele de calcul utilizate sunt: Echilibrul limita, Elemente finite.
Metodele amintite au o complexitate crescuta atat din punct de vedere numeric, cat si din punct de vedere al calitatii parametrilor geotehnici necesari calculului.
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
