Accession Number : ADA323681

Title :   User's Manual for STUBBS: A Finite Element Program for Geotechnical Analysis.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB

Personal Author(s) : Peters, John F. ; Wahi, Ronald E. ; Meade, Ronald B.

PDF Url : ADA323681

Report Date : MAR 1997

Pagination or Media Count : 122

Abstract : STUBBS is two-dimensional finite element code developed for the purpose of solving problems in geotechnical engineering. The code is capable of performing a fully coupled Biot analysis (Biot 1941) in which the partial differential equations for static equilibrium and flow continuity are solved simultaneously. The code can also handle either pure deformation or pure flow problems. The code accounts for nonlinear stress-strain behavior of soils and groundwater flow through both saturated and partially saturated soils. The program is designed to account for soil-structure interaction effects using a library of specialized elements. Thus, STUBBS has the potential to deal with soil-structure interaction, consolidation, and transient seepage problems. The program can perform analysis of problems in either plane strain or axisymmetric geometries. The computer program was written in FORTRAN77 and runs successfully on several platforms that include personal computers, engineering work stations, and mainframe computers. A particular strength of the program is the ability to simulate construction processes. As such, the program can predict movements, displacements, and porewater pressures that might exist at different times during construction. Activities that can be simulated by STUBBS include the excavation and placement of fill, the addition/removal of structural elements such as walls, anchors, or bracing, and the placement and removal of distributed and concentrated loads. Analysis of the construction process enables the design engineer to evaluate the effects of construction rates and the sequence of the construction activities. Typical applications of this feature include the construction of embankment dams, lock walls, reinforced earth projects, and sheet-pile walls. This simulation of construction activities is controlled by the use of a construction script.

Descriptors :   *COMPUTER PROGRAM DOCUMENTATION, *GEOTECHNICAL ENGINEERING, *SOIL STRUCTURE INTERACTIONS, STRESS STRAIN RELATIONS, DATA BASES, COMPUTERIZED SIMULATION, USER MANUALS, LOAD DISTRIBUTION, WATER FLOW, FINITE ELEMENT ANALYSIS, DEFORMATION, DISPLACEMENT, SOIL MECHANICS, SATURATED SOILS, FORTRAN, GROUND WATER, PARTIAL DIFFERENTIAL EQUATIONS, COMPUTER FILES, EMBANKMENTS, SEEPAGE.

Subject Categories : Soil Mechanics
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE