The conventional stability analyses in geotechnical engineering (determination of earth pressure according to DIN 4085, slope stability, ground failure, slip circle according to DIN 4084, ground failure according to DIN 4017, …) often provide too little or too much stability depending on the situation due to insufficient accuracy of the failure figure. This is basically already the case if concentrated loads, geometric constraints, lubrication layers or the like cause the formation of sliding surfaces that cannot be modelled by the simplified failure mechanisms proposed in the standards. The kinematic element method (KEM) can be used to model and optimise any fracture mechanism and thus correctly capture most geometric situations.

Please also read the presentation by Prof Dr Euringer.

Areas of application

• Investigation of embankments
• Calculation of floor nailing
• Determination of ground failure resistance with complex soil stratification
• Flow-through dams
• Stability of excavation pits
• Geotextile-reinforced terrain jumps
• All non-standard cases
• Realistic mapping of the effects of excavation phases

Special features

• Automatic generation of projections and calculation of all verifications for nail walls
  • Reinforced concrete design incl. Proof of punching
  • Automatic nail lengthening
  • Tilting, sliding, ground breakage, etc.
  • Slope failure
• Contains the functional scope of FIDES earth pressure and FIDES slip circle
• Takes into account flow forces from the calculation with FIDES-Flow

Der Beitrag FIDES-Geostability (KEM) erschien zuerst auf FIDES DV-Partner.

FIDES Angled retaining wall is used for the clear calculation of angled retaining walls with a spur on the air and ground side and any number of brackets. Kinematic element mechanisms are automatically generated to determine static parameters. This enables the programme to correctly record concentrated line and area loads as well as any slopes, e.g. when determining earth pressure. The results are displayed in compressed form directly in the view, so that a maximum degree of transparency is always guaranteed. All necessary calculations and verifications such as earth pressure determination, ground failure verification, tilting, base pressure, sliding, settlement, ground failure and base canting are carried out. All geotechnical verifications can be carried out either in accordance with DIN standards (SIA, OENORM) or DIN EN 1997-1 (Eurocode EC7), and the design can be carried out either in accordance with EC2, DIN 1045, DIN1045-1, SIA-262 or ÖNORM B4700.

Der Beitrag FIDES angled retaining wall erschien zuerst auf FIDES DV-Partner.

The conventional earth pressure calculation according to EAB/EAU can result in unrealistic earth pressures for complicated geometries and in special cases. The FIDES earth pressure programme, on the other hand, calculates the active and passive earth pressure using an extended Culmann method or a 2-body method according to Gudehus. Forced slip lines due to slopes, concentrated loads, inclined or buckled walls and the correct consideration of flat and polygonal earth layers as well as a flat or polygonal water line are automatically created by mathematical optimisation. Separation surfaces or rock fissures can be reliably detected with this method. The results of the earth pressure calculation from FIDES-Erddruck can be used as individual results or for further processing in existing excavation calculations.

Performance features

• (Increased) active earth pressure through variation of the sliding surface inclination
• Earth resistance through geometrically optimised block sliding method
• Parameter input of the layered soil using drilling profiles in combination with the expandable layer database shared by all FIDES foundation engineering programmes
• Export of the results in a variety of common file formats
• Same document format for all geotechnical engineering programmes
• Detailed online help with exact explanation of the calculation method
• Windows standard such as Undo and Redo for all actions, Copy & Paste, context menu, system explorer

Result output

• Earth pressure curve as WALLS import file
• In conjunction with FIDES-Flow water pressure curve as WALLS import file
• RTF format (MS-Office compatible)
• Direct print output of graphics and text mixed
• True-to-scale images for graphical control

Der Beitrag FIDES earth pressure erschien zuerst auf FIDES DV-Partner.

The programme enables ground failure calculations according to DIN 4084 or DIN EN 1997-1 (Eurocode EC7). The required verifications are performed for general soil-structure systems, which can include various elements, e.g. anchors, nails, piles, loads, soil layers, construction stages, etc. in any number.

Areas of application

Terrain fracture calculation even for complicated
Geometric relationships and components

Der Beitrag FIDES sliding circle erschien zuerst auf FIDES DV-Partner.

Underpinning walls are increasingly being built in areas of dense development, as they offer a way of securing excavation pits in the immediate vicinity of neighbouring buildings. Underpinnings are heavyweight walls that can be back-anchored or braced towards the excavation pit. The FIDES underpinning programme offers a graphically interactive user interface for the free geometric design of underpinning elements and their dimensioning with all the necessary verifications.

Der Beitrag FIDES underpinning erschien zuerst auf FIDES DV-Partner.

Thanks to their versatile design options, gabions are increasingly being used by architects and planners as a cheaper alternative to prefabricated elements and solid walls made of concrete or stones. The area of application covers landscaping and road construction, noise barriers, protective structures and drainage channels. The FIDES-Gabion programme provides the structural engineer with a tool that graphically and interactively performs the necessary verifications required by the standards and Eurocodes for the calculation of retaining structures made of gabions or solid blocks. The calculation covers verifications for tilting and sliding in the footings, for inlaid geotextiles, for external stability as well as tilting, sliding and ground failure in the bed joint.
The earth pressure calculation according to Culmann allows even complex soil layers and concentrated loads to be correctly recorded. A multi-body fracture method (KEM, Kinematic Element Method) is used for external stability.

Der Beitrag FIDES-Gabion erschien zuerst auf FIDES DV-Partner.

The increase in devastating flood disasters in recent years has not only sensitised those affected to the issue of the stability of dykes and dams. Design engineers are increasingly demanding easy-to-use tools to better assess the effects of water flowing through the ground. FIDES-Flow can be used to determine the free water level, flow velocities, flow volumes and water pressures in plane cross-sections for stationary conditions in the simplest possible way. The results can be displayed in other programmes of the FIDES geotechnical series or used to calculate the stability. This means that FIDES-Flow is not used as an independent programme but always as an extension module to other programmes, e.g. FIDES-GeoStability, FIDES-Slip Circle, FIDES-Earth Pressure.

Der Beitrag FIDES-Flow erschien zuerst auf FIDES DV-Partner.