The Analytical Challenge

Analysis of linear structures over heterogeneous foundations as well as bridge abutments and embankments represents a unique numerical modeling challenge. Linear structures often have spatially varying factors of safety due to the underlying geo-strata. Bridge abutments are fundamentally a 3D problem to analysis due to the inherent geometry. Embankment analysis in terms of slope stability analysis can be complex.

The SVOFFICE™ Solution

SVSLOPE® offers 3D as well as 2D analysis that is uniquely suited in order to analyze bridge abutments. The Multi-Plane Analysis (MPA) feature in SVSLOPE® is also perfect for the analysis of long linear structures such as roadways and railways. This is particularly true of roads through areas with terrain relief such as mountains where the factor of safety spatially along the structure may be presented. SVSOLID™ offers similar 2D and 3D analysis of the expected deformations of such structures such that the operating deformation expectations can be met. Staged construction of embankments in terms of stress/deformation or flux can be modeled. Unsaturated flow due to climatic impacts around highway shoulders can also be modeled in the SVFLUX™ software.

 

  • The Challenge
    Design of embankments is a common practice with roads and bridges. Enbankments are required to meet design FOS requirements as provided by a limit equilibrium numerical model. Structures may not be linear but may require 3D analysis to mitigate topography effects.

    The Solution
    SVSLOPE® is designed to model the stability of embankments using many potential calculation methods. Staged construction or excavation activities related to embankment construction may be modeled using SVSOLID™ (stress/deformation) or SVFLUX™ (flow). SVSOILS™ can be utilized to estimate unsaturated soil properties for an unsaturated SVFLUX™ groundwater seepage analysis.

    Software Solutions
    SVSLOPE®, SVSOLID™, SVFLUX™, SVSOILS™, SVDESIGNER

  • The Challenge
    Wick drains are often utilized to speed the dewatering of a clay-rich base material in roadway or embankment construction. The speeding of such dewatering/consolidation facilitates a faster construction cycle.

    The Solution
    The SVFLUX™/SVSOLID™-GT software package can be utilized to model the effects of wick drain patterns in 3D. Thus the speeding of consolidation due to additional drainage can be predicted.

    Software Solutions
    SVSOLID™, SVFLUX

  • The Challenge
    Analysis of bridge abutments are often inherently 3D both in terms of calculation of the factor of safety and of deformations. The presence of piles in many designs often significantly complicates the numerical analysis and makes it 3D in nature.

    The Solution
    SVDESIGNER™, SVSLOPE®, and SVSOLID™ are ideally suited for modeling such situations given their ability to model 3D environments as well as the ability of SVSLOPE® to model micropiles. SVFLUX™ & SVSOILS™ can also be utilized to determine the unsaturated flow regime around bridge abutments.

    Software Solutions
    SVSLOPE®, SVFLUX™, SVSOILS™, SVSOLID

  • The Challenge
    The construction of long engineering structures through varying terrain and geo-strata has unique numerical analysis challenges. The static traffic loadings may need to be modeled as well as the potential for unsaturated water flow underneath the road. The stability of a road/railway through an excavated hillslope will need to be analyzed. .

    The Solution
    The SVDESIGNER™ conceptual modeling software allows the excavation geometry of roads through hills or mountains to be determined quickly. The Multi-Plane Analysis (MPA) features of SVSLOPE® allows the stability along a long and extensive structure to be determined and summarized on a single 3D plot. The unsaturated flow under a road structure can be determined with SVFLUX™ including the actual evaporation from the road shoulders. SVSOLID™ can be utilized to calculate the static loads induced by traffic.

    Software Solutions
    SVSLOPE®,  SVFLUX™, SVSOILS™, SVDESIGNER™, SVSOLID

  • The Challenge
    Calculation of precipitation infiltration as well as evaporation from the shoulders of roads is often required to determine the amount of moisture which can flow under a pavement. Such moisture has impacts on the frost heave as well as the heave of clay - based foundations. A key aspect of this analysis is determining the amount of actual evaporation which takes place from the shoulders.

    The Solution
    SVFLUX™-GT/GE implements comprehensive implementation of the calculation of actual evaporation from the ground surface based on weather station data. The implementation is based on the advanced Fredlund-Wilson-Penman formulation. The SVFLUX™ software also implements advanced abilities to handle unsaturated flow as required to model the flow regime under a roadway.

    Software Solutions
    SVFLUX™, SVHEAT™, SVSOILS

  • The Challenge
    Underground tunnels are subjected to complex overburden pressures. Often such complexities cannot be modeled with simple closed-form equations.

    The Solution
    SVSOLID™ can be used in order to model the stresses and deformations associated with a tunnel design in either 2D or 3D.

    Software Solutions
    SVSOLID™, SVFLUX™, SVSOILS

  • The Challenge
    In seismically active areas the impact of an earthquake event can significantly affect the require design factor of safety (FOS). The analysis must take into account the impact of such seismic events.

    The Solution
    In seismically active areas the impact of an earthquake event can significantly affect the require design factor of safety (FOS). The analysis must take into account the impact of such seismic events.

    Software Solutions
    SVSLOPE®

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