GEO5 SOFTWARE

GEO5 is a software suite designed for providing solutions for the majority of geotechnical assignments. Individual programs have the same user interface and communicate with each other, while each program verifies definite structure type.GEO5 is composed of individual programs with a unified user interface, which is easy to use and does not require any special training. GEO5 software is applicable all over the world, although most countries adopt their own standards and conventions. GEO5 offers a unique way of applying standards which significantly simplifies the work of the designer and at the same time allows to verify the structure with all the required approaches.

 

Solutions offered by GEO5:

1. Stability Analysis

GEO5 offers several programs for analyses of soil and rock slopes, dams, newly built embankments, and checking of retaining walls global stability. The basic program for stability analysis is Slope Stability. It enables design and analysis of slope stability with circular or polygonal surface and automatic optimization of slip surface. It cooperates with all programs for analysis of Excavation Designs and Retaining Wall Designs. It enables the creation of anchors, geo-reinforcements, surcharge, and earthquake effects modeling.

The program for analysis of MSE Walls reinforced by geo-reinforcements is MSE Wall, which contains a large database of geo-reinforcements of different production firms. The program for nailed slope analysis (passive nails with shotcrete face) is called Nailed Slope.

The Rock Stability program is designated for analysis of rock slope stability for a specified type of failure, including a planar or polygonal slip surface or rock wedge.

The Anti-Slide Pile program is used for the design of pile walls stabilizing slope movement or increasing safety factor of the slope.

All stability problems can also be solved by finite element method (fi,c reduction method) in the FEM program. The groundwater table can be calculated in the FEM – Water Flow program, and then passed into Slope Stability or FEM programs for stability analysis.

2. Excavation Design

GEO5 enables a complete design and analysis of vertical sheeting structure of many types. Retaining walls can be anchored, strutted or non-anchored, it is possible to compute soldier piles. The GEO5 Sheeting Check program is used to make an advanced design of anchored or strutted retaining walls (Sheet pile, Diaphragm, Pile or Soldier pile walls). It allows the user to model the real structure behavior using stages of construction, to calculate the deformation and pressures acting upon the structure, to verify the internal anchor stability or to verify steel, RC or timber cross-sections and the bearing capacity of the anchors.

The GEO5 Sheeting Design program is used to perform a quick design of non-anchored structures or a basic design of anchored structures. The program calculates the required length of the structure in soil, the internal forces on the structure and verifies cross-sections (RC, steel, timber).

Both programs support the design of various embedded retaining wall types (Sheet pile wall, Diaphragm wall, Soldier pile wall and Pile wall). Also, both programs allow analyzing overall stability using the GEO5 Slope Stability program.

3. Walls and Gabions

 GEO5 contains multiple programs for design of retaining walls and supporting structures – mainly due to conserving simplicity and clarity of input. Each program enables analysis of the structure according to geotechnical aspects, but also verification of wall material.

GEO5 contains multiple programs for design of retaining walls and supporting structures – mainly due to conserving simplicity and clarity of input. Each program enables analysis of the structure according to geotechnical aspects, but also verification of wall material.

The MSE Wall program is used to analyze segmental retaining walls reinforced by geo-reinforcements. It contains a large database of geo-reinforcements of different production firms. The program for nailed slope analysis (passive nails with shotcrete face) is called Nailed Slope.

The program Abutment is designated to verify bridge abutments including wingwalls and construction stages. Additional program Earth Pressures allows verifying the earth pressure load on a general structure.

4. Shallow Foundations

GEO5 contains programs for design of rectangular and circular spread footings, strip foundations, and foundation slabs of a general shape. Not only the software allows verifying the bearing capacity and settlement, but also the reinforcement of an RC structure.

The GEO5 Spread Footing program is used for isolated footing and strip footing design (including spread footing with haunch bearing capacity). It enables verification of bearing capacity of a foundation on both, drained and undrained soil and rock subsoil. The program also calculates the settlement and rotation of the foundation and allows designing reinforcement for the foundation.

Program GEO5 Slab is designated for analysis of foundation mats and slabs on elastic subsoil. The program uses the Winkler-Pasternak model and is able to calculate C1 and C2 constants from deformation properties of soil – piles can be model as springs.

Internal forces and deformations of strip foundation can be calculated by program GEO5 Beam. The program allows to calculate values of C1, C2 from input soil profile.

It is also possible to verify some problems (eg. circular force) using the finite element method in the GEO5 FEMprogram using axisymmetry.

5. Deep Foundations

GEO5 contains several programs for design and analysis of pile foundations. It is necessary to select a suitable program considering the structure type and available results of a geotechnical survey.

The Pile program is designed to verify the vertical bearing capacity of a compressive and tensile pile, pile settlement and horizontal bearing capacity of a single pile. It is also possible to design and verify a reinforcement of different types of piles, which can be divided according to pilling method as driven, bored or CFA piles.

The Pile CPT program is designated to verify bearing capacity and settlement of a single pile or a pile group according to results of a cone penetration test (CPT).

The Pile Group program is designated to verify pile group with rigid foundation mat, using the spring method (FEM) or analytical solution.

The Micropile program verifies tube micropiles (made from steel tube). When analyzing the bearing capacity of the micropile, the root part and cross-section of the micropile are verified.

Some problems (eg. single pile) can also be solved by the finite element method in the FEM program using axisymmetry.

6. Settlement Analysis

Although GEO5 includes specialized programs for settlement and consolidation analysis, settlement of a structure can be analyzed in all programs for foundation analysis.

The Settlement program is designated for analysis of terrain settlement from the surcharge or under constructed embankment. It also enables calculation of consolidation using analytical method (Terzhagi).

It is also possible to analyze settlement using the finite element method in the FEM program. FEM – Consolidation module then allows calculation of settlement in time.

Settlement and rotation of a shallow foundation are analyzed in the Spread Footing program. It is possible to calculate settlement or load-settlement curve of piles in the Pile, Pile CPT, and Pile Group programs. The Ground Loss program is designated for analysis of terrain settlement and risks of building damage above a constructed tunnel.

7. Tunnels and Shafts

Not only can GEO5 programs be successfully used for tunnel analysis, but it is also possible to calculate the influence of tunnel construction on surrounding buildings.

Tunnels are modeled using the finite element method in the FEM program. The FEM – Tunnel extension module also contains these functions:

  • creation of a geometrical model of the lining in a separate pre-processor
  • Use of a relaxation factor to model the 3D behavior of the body during excavation
  • Input of temperature loads
  • Consideration of soil swelling
  • Consideration of lining shrinkage

The Ground Loss program is designated for analysis of terrain settlement and risks of building damage above a constructed tunnel. Program Shaft is designed for calculations of load and stress of circular, vertical shafts.

8. Geological Survey

GEO5 programs assess data from geological surveys, create geological models and professional data reports. Data from the geological model can be exported into GEO5 design programs. It is possible to define embankments and earth cuts for calculation of earth volumes.

Program GEO5 Stratigraphy assesses results from site investigation (boreholes, CPTs, SPTs, etc.), generates 2D or 3D geological models and exports cross sections and geological profiles into GEO5 design programs.

Site Investigation is a module used for professional data reporting from the program GEO5 Stratigraphy. It provides many different pre-defined reports of data from the site investigation (boreholes, SPTs, CPTs, dynamic penetration etc.) and reports of created geological cross-sections from the geological model. The Site Investigation module will be released in Spring Update of 2018 Edition.

The Terrain enables to create a digital terrain model and layers of soil from inputted or imported points, edges, and boreholes. Another GEO5 program can be launched from the program to verify the created geological models. It also enables simple definition of embankments and earth cuts for calculation of earth volumes.

9. Field Tests

GEO5 provides analysis of structures directly from field test data (SPT, CPT, DMT, PMT) and avoids or reduces the definition of standard soil parameters. All types of field tests can entered or imported into the Stratigraphy program.

The main input of geotechnical programs is usually soil parameters, which should be obtained by geological surveys and laboratory tests. When using calculations based on field tests, these data are not required and the basic input is just the data from the tests.

GEO5 software includes several programs which enable direct import of field tests (CPT – cone penetration test, DMT – flat dilatometer test, PMT – pressuremeter test, SPT – standard penetration test).

The Pile CPT program analyzes bearing capacity and settlement of piles according to cone penetration test (CPT).

The Spread Footing CPT program analyzes bearing capacity and settlement of spread foundation according to cone penetration test (CPT), standard penetration test (SPT) and flat dilatometer test (DMT) .

The Spread Footing program analyzes settlement of spread foundation according to flat dilatometer test (DMT).

Program Micropile calculates the modulus of subsoil reaction according to pressuremeter test (PMT) and standard penetration test (SPT).

The Sheeting Check program enables analysis of modulus of subsoil reaction according to pressuremeter test (PMT) and flat dilatometer test (DMT).

Any of the mentioned types of field tests can be entered (or imported) into the Stratigraphy program to generate a geological model of subsoil layers.

Site Investigation enables professional data reporting from the GEO5 Stratigraphy program. It provides many different pre-defined data reports from site investigation results (boreholes, SPTs, CPTs, DPTs etc.) and reports of created geological cross sections from the geological model. Site investigation, an extension module of GEO5 Stratigraphy, will be released in Spring Release of Edition 2018.

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