# SoftwareCategory:Geotechnical

Software Categories > Geotechnical

**APOLLO**- Legacy software from 1978 that incorporates a simplified procedure for one-dimensional analysis of generation and dissipation of pore water pressures in a sand deposit due to seismic excitation. Source code in FORTRAN and related reports can be downloaded from the earthquake engineering online archive maintained by University of California Berkeley. APOLLO: Analysis of Potential Liquefaction of Soil Layers for One-Dimensional Seepage Martin, Philippe P.; Seed, H. Bolton Department of Civil Engineering, University of California, Berkeley, 1978, This program incorporates a simplified procedure for one-dimensional analysis of generation and dissipation of pore water pressures in a sand deposit due to seismic excitation. The method of liquefaction analysis in APOLLO is outlined by the following steps: (1) By means of a dynamic response analysis of the soil deposit under investigation, time histories of shear stress developed by earthquake are determined at the various depths of interest; (2) For each depth in the soil profile, determine the equivalent uniform cyclic stress, the equivalent number of uniform stress cycles and the effective period of each stress cycle representing the induced stress history; (3) Determine from laboratory cyclic load test the relationships between the applied cyclic shear stresses and the number of stress cycles required to produce a condition of initial liquefaction under undrained conditions; (4) Determine the number of stress cycles required to cause initial liquefaction; (5) Determine rate of pore pressure build up for each elemental layer of the deposit; (6) From a knowledge of the coefficients of permeability and compressibility of the soil layers, determine the corresponding values of the coefficient of consolidation for the different layers; (7) Solve the governing differential equation for the known values of soil characteristics, pore pressure generation expressions and boundary conditions. Program APOLLO is used to solve this equation by an implicit finite difference method.**Abutment (by Fine)**- The program provides facilities to verify abutment design. Abutment program is a part of a geotechnical software suite GEO5. It is easy to understand and use system comprises individual modules with uniform user environment and mutual communication.**Aspen**- Software for the analysis of stratified slope stability using limit equilibrium methods, with automatic searching of the critical slip surface. Enables to account for the optional insertion of stabilisation work (excavation, banking, banking walls, piling, bulkheads and tie rods) with the purpose of planning consolidation work.**BLOCK**- Legacy software from 1989 that utilizes block theory has been applied to the planning and design of surface and underground excavations. Source code in FORTRAN and related reports can be downloaded from the earthquake engineering online archive maintained by University of California Berkeley.BLOCK: BASIC Programs for BLOCK Theory

Shi, Gen-hua; Goodman, Richard E.

Department of Civil Engineering, University of California, Berkeley, 1989,

Block theory has been applied to the planning and design of surface and underground excavations. The object of this technology is to specify the critical joint blocks intersecting an excavation. It applies to rock engineering for for excavations in hard rock where the movement of predefined blocks precipitate failure. A series of Block Theory programs help to find the critical key blocks and possibility of failure in all types of excavations. These were developed along with the theories outlined in the book, "Block Theory and Its Application to Rock Engineering," by Richard E. Goodman and Gen-hua Shi, Prentice-Hall, 1985. The problem is limited in scope--to find the critical blocks created by intersections of discontinuities in a rock mass excavated along defined surfaces. Yet the problem is sufficiently difficult that a series of simplifying assumptions are adopted: (1) All joint surfaces are assumed to be perfectly planar. (2) Joint surfaces will be assumed to extend entirely through the volume of interests, that is, no discontinuities will terminate within the region of a key block. The implications are that all blocks are completely defined by preexisting joint surfaces so that no new cracking is entailed in the analysis of block movements. (3) Blocks defined by the system of joint faces are assumed to be rigid. This means that block deformation and distortion will not be introduced. The key-block problem is formulated entirely through geometry and topology. (4) Discontinuities and the excavation surfaces are assumed to be determined as input parameters. Block theory is developed on the basis of geometric information derived from structural geology and equilibrium calculations using simple statics. It is assumed that continuum mechanics is second in importance to the calculation and description of key blocks. Only block movement modes are to be considered. The suite of programs included in the program package are: (1) General Key Blocks, (2) Stereographic Projections, (3) Stability Analysis, and (4) Tunnels and Shafts.**Beam on Winkler Foundation**- Finite element analysis for a beam on elastic foundation. Beam consists of nodes and members. Automatic generation of non loaded additional nodes.Up to 8 loading cases, up to 15 loading combinations. Each node may have vertical movement and/or twist restrictions. Vertical nodal loads, moment nodal loads. Each member may have a different geometry, elastic properties, modulus of subgrade reaction, Ks, and UDL load. Calculates deflections, soil stresses, bending moments, shear forces, node restriction reactions for each load combination or envelopes for the above.

Generates deflection, bending moment and shear force diagrams (combinations and envelopes). Paged printing in tables with linked over pages tables always having labels above.**ELPLA**- Program for analyzing raft foundations of arbitrary shape with the real subsoil model. ELPLA can be also used to solve many other civil engineering problems**EasyElsym5**- An easy interface to the popular program ELSYM5 which calculates stresses, strains and deflections within a pavement cross section due to an applied load configuration.**GEO5**- Geotechnical software suite, which includes the following programs: (1) Gravity wall; (2) Prefab wall; (3) Cantilever wall; (4) Gabion; (5) Sheeting design; (6) Sheeting verification; (7) Square foundation; (8) Pile; (9) Slope stability; (10) Earth pressures**gINT Software**- Geotechnical and geoenvironmental data management and reporting.**GeoStudio 2007**- Suite of applications for geotechnical and geoenvironmental engineering. Includes the following products: (1) SLOPE/W for slope stability analysis; (2) SEEP/W for groundwater seepage analysis; (3) SIGMA/W for stress and deformation analysis; (4) QUAKE/W for dynamic earthquake analysis; (5) TEMP/W for thermal analysis; (6) CTRAN/W for contaminant transport analysis; (8) VADOSE/W for vadose zone and soil cover analysis; (9) Seep3D for groundwater modeling.**LatPilePro**- Finite element program for the analysis and design of retaining structures. Thouroughly validated against hand calculations and published field case studies. May model variable inertia system, braced or anchored excavation with computer generated or user specified construction stages, including a variety of surcharges. Several models for the soil pressure as well as user-defined soil pressure.**M Series**- A collection of the following geotechnical programs:(1) MSheet addresses the design of sheet walls including distortions and stability for various excavation phases. The critical length is also determined.

(2) MFoundation will optimise the dimensions of foundations (with piles, on plates) for a variety of loadings.

(3) MGeoBase stores the results of soil tests to use the soil parameters and geometric soil layers for further use in MStab, MSettle, MDrill and MSeep.

(4) MStab calculates critical shear surfaces within the soil, incorporating calculated settlements.

(5) MSettle determines the settlements through creep and soil consolidation following Koppejan or advanced isotaches. Vertical drainage can be modelled. Subsoil water pressure is checked.

(6) MDrill calculates the minimal and maximum compression in horizontal pipes, in drilling liquid and drilling equipment.

(7) MSeep determines the phreatic surface and the soil pressure by soil groundwater movement. More modules for groundwater calculation (MWell) and pile foundation design (MPile).**PEYSANJ**- Geotechnical software for calculation of (1) allowable bearing capacity of shallow foundations; (2) pressuremeter test analysis; (3) plate loading test; (4) soil liquefaction analysis; (5) lateral earth coefficient; (6) stress distribution below foundation; (7) stress distribution behind retaining wall**Plaxis**- Plaxis is a family of the following products targeted towards solving geoengineering problems:Plaxis 2D: Finite element package intended for the two dimensional analysis of deformation and stability in geotechnical engineering. Incorporates advanced constitutive models for the simulation of the nonlinear, time dependent and anisotropic behaviour of soils and/or rock. Also incorporates special procedures required to deal with hydrostatic and non hydrostatic pore pressures in the soil. Plaxis enables to model interaction between structures and the soil.

Plaxis Dynamics: Add on for Plaxis that enables to analyze soils and structures subjected to dynamic loads, such as earthquake.

PlaxFlow (2D Transient Ground Water Flow): Finite element package intended for the two-dimensional and steady-state analyses of saturated and unsaturated groundwater flow problems in geotechnical engineering and hydrology.

Plaxis 3D Tunnel: Enables to perform three-dimensional analysis of deformation and stability in tunnel projects.

Plaxis 3D Foundations: Finite element package for three-dimensional deformation analysis of foundation structures.**SLOPE**- Computer program for analysing the stability of slopes. The program is also applicable to earth pressure and bearing capacity problems. Optional facilities are available for the analysis and design of reinforced soil.**Settle**- Calculates the short term and consolidation settlement of shallow foundations, as well as the time required to attain a certain settlement percentage. Contains handy tools to estimate the required settlement parameters based on published research.**Sheeting Check (Fine)**- Program allows you to analyze sheeting structures (anchored, strutted and non-anchored structures) employing the method of dependent pressures - magnitudes of pressures acting upon a structure depend on structure deformation. The actual solution is provided by the FEM. Sheeting check is program is a part of a geotechnical software suite GEO5. It is easy to understand and use system comprises individual modules with uniform user environment and mutual communication.**Slope Stability (Fine)**- The slope stability problem is solved in a two dimensional environment. The slip surface can be modeled in two different ways - the circular one (Bishop or Petterson method), or the polygonal one (Sarma method). Slope stability program is a part of a geotechnical software suite GEO5. It is easy to understand and use system comprises individual modules with uniform user environment and mutual communication.**SoilClass**- SoilClass can assist the design engineer to determine estimates of the required soil design parameters (cohesion, friction angle, CBR, unit weight, ...), its suitability for various purposes (such as base course or foundation) and requirements for compaction. It also provides narrative description of the soil. SoilClass in not merely a soil classification (Unified System & AASHTO) software developed for a laboratory technician.