Calculation of excavation pits according to EC7, DIN, EAB/EAU

WALLS shoring, the further development of the classic WALLS excavation pit, which has been tried and tested for over 25 years, provides planners with an efficient and extremely powerful state-of-the-art excavation pit programme. In WALLS shoring, various types of shoring can be verified as freely cantilevered or anchored wall constructions. Thanks to the consistently object-orientated, graphically interactive input interface, WALLS Shoring always offers a clear and fast input option for both simple problems and complex terrain and excavation geometries. With the 2012 version, Eurocode 7 with NADs was implemented as a calculation basis in addition to the previously valid basic construction standards. Special requirements from EAB and EAU continue to be fully supported.

Der Beitrag WALLS shoring erschien zuerst auf FIDES DV-Partner.

The dimensioning of excavation shoring can take a lot of time. The WALLS measurement programme completes this task with just a few mouse clicks and delivers a test-ready output.

Der Beitrag WALLS measurement erschien zuerst auf FIDES DV-Partner.

WALLS-LT is the smaller version of our proven WALLS shoring programme at an attractive price. Sufficient for the vast majority of all problems that arise when verifying shoring walls, the planner has an efficient and tried-and-tested, state-of-the-art excavation programme at his disposal. In WALLS-LT, various types of shoring can be verified as freely cantilevered or multiple back-anchored wall constructions. Thanks to the intuitive, graphical programme input and the clear, structured results output in our new results browser, WALLS-LT offers the planning engineer the best possible support and thus contributes significantly to efficient, time-saving processing. The programme supports calculation and verification in accordance with current European standards with NADs for Germany and other European countries. Special requirements from EAB and EAU are fully supported, older basic construction standards can still be selected, e.g. for recalculations.

Performance features

• Calculation according to Eurocode 7, DIN 1054 old & new, OENORM, SIA and EAB+EAU
• Wall types: Sheet pile wall, soldier pile wall, in-situ concrete wall, diaphragm wall, bored pile wall intersected, tangent, broken up
• Internal forces, comprehensibly separated according to permanent and variable actions
• Bending stiffness of the wall can be variably selected in any sections
• Any number of horizontal layers, polygonal terrain courses, horizontal groundwater course
• Earth pressure calculation classically according to Coulomb DIN4085 or directly implemented with Culmann method
• Automation for quickly finding useful rearrangement figures
• Access to the expandable layer database shared by all FIDES basic modules
• Any load grouping; permanent, variable, limited and unlimited superimposed loads, wall loads and railway loads, various load figures per superimposed load
• Any type of support: rigid or anchor, prestressed, elastic or rigid, determination of the anchor length with verification in the deep sliding joint
• Verification for anchor walls
• Anchors and stiffeners can be set active or inactive in any phase
• Wall base, freely supported, clamped, or bedded, bedding module method according to EB102
• Any number of excavation and dismantling phases
• Further verifications with e.g. WALLS-FEM, FIDES-Gleitkreis or FIDES-GeoStability are easily possible thanks to the identical file format of the FIDES programmes
• Potential flows with boundary element method
• Proof of hydraulic ground failure, groundwater levels
• WALLS dimensioning: individual dimensioning of all components such as walls, anchors, chords

User interface

• Graphically interactive interface with great modelling freedom
• Excavation wizard for quick parameter studies of simple excavations in tabular form

Result output

• Graphically interactive interface with great modelling freedom
• Excavation wizard for quick parameter studies of simple excavations in tabular form

Differences to the full version WALLS installation and dimensioning

The most important differences between WALLS-LT and the full version

• Soil layers can only be embedded horizontally
• Maximum 5 anchors or stiffeners
• No sliding circle included

Complete list of differences

Der Beitrag FIDES WALLS-LT erschien zuerst auf FIDES DV-Partner.

Due to the increasing building density, ever more precise analyses of deformations in the area of excavations are required. Thanks to effective input and automatic finite element meshing, the WALLS-FEM programme enables the economical calculation of complex excavations.

The SOFiSTiK calculation kernel implemented in WALLS-FEM uses modern material laws to calculate realistic settlement depressions and wall displacements in all construction phases in accordance with the new EAB recommendation EB103.

WALLS-FEM is the ideal complement to the WALLS chain. In this programme combination, the geometry (embedment depth, required anchor lengths, etc.) is first determined using the WALLS Shoring programme according to the formulae of the EAB and then the system is imported into WALLS-FEM and the FE calculation is carried out after a few additional entries. Since all relative displacements of soil, anchor and wall are fully considered in the FEM, it can now be verified whether the assumptions of the EAB were correct for this case. Thanks to the interactive editable nature of all objects (such as anchor angles and lengths, prestressing, etc.), the system can be optimised very easily, e.g. to minimise settlements.

Areas of application

• Estimation of settlements and displacements of the excavation wall
• Determination of characteristic stresses in decisive sections
• Safety against slope and terrain failure
• Calculation of complicated geometries
• Investigation of excavation walls where a reliable earth pressure determination is not possible (e.g. flexible anchors + flexible wall)
• Realistic mapping of the effects of excavation phases

Der Beitrag WALLS-FEM erschien zuerst auf FIDES DV-Partner.