Sheet walls are relatively thin, vertical structures, embedded in terrain to a depth sufficient to support an uphill embankment/downhill excavation thrust, including water and surcharges.
This type of structure can be constructed of driven prefabricated steel pile sections, adjacent, bored cylindrical piles, and reinforced concrete sheet elements usually produced on site.
The methods used for analysis / verification are: Limit Equilibrium Method (LEM) and Finite Elements
Method(FEM).
The methods mentioned are of
increasing complexity from both the
numerical point of view
and
for the amount of geotechnical
parameters necessary for the calculation.
New features:
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Graphical input of stratigraphy, ground water,
loads; |
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Analysis per phase and combinations for any phase; |
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Bearing capacity at vertical limit load;
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Composite sections with
metalic profiles;
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Different sections along the
height of the bulkhead; |
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Struts and constraints;
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Graphical management of any element: layers, ground
water, loads, etc.;
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Calculation of the
anchorsstringcourses
with a new finite element
method; |
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Filtration analysis using the
finite differences method for
each phase of construction;
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Reinforcement of the sections
per
combination and per phase. |
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Computation performed using Finite Element Method
and Limit Equilibrium Method;
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Multi-layered terrain;
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Presence of earthquake and ground water; |
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Piles on single row; |
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Piles in quincunx disposition; |
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Micropiles on single row; |
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Micropiles in quincunx disposition; |
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Diafragms with double row reinforcement;
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Freeform section; |
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Anchors on multiple rows; |
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Loads on embanckment: strip loads, lines of load,
uniformly distributed loads. The loads can have an
application elevation different from ground elevation. |
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Plotting of flow grid usind finite differences
method. |
COMPUTATION
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Computation using Limit Equilibrium Method (LEM) and
Finite Element Method (FEM) and also nonlinear analysis;
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Computation of embedment depth;
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Verification of an assigned embedment depth; |
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Display of stress diagrams for every phase and
combination; |
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Computation of thrusts using the methods of: Coulomb, Rankine, Mononobe & Okabe, Caquot
and Kerisel;
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Computation of tensions in the subsoil, induced by
external loads, using the method of Boussinesq;
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Analysis of the bulkhead during the excavation phase; |
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Semiproject of sections at ultimate limit state,
also for mixt sections; |
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Global stability analysis: |
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Plotting of flow grid usind finite differences
method. |
GLOBAL STABILITY ANALYSIS
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Methods of: FELLENIUS, BISHOP, JANBU, BELL, SARMA, D.E.M.
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The
program interfaces with G.F.A.S. (Geotechnical and F.E.M. analysis System)