* Note - Implicit Method : Explicit methods calculate the state of a system at a later time from the state of the system at the current time, while implicit methods find a solution by solving an equation involving both the current state of the system and the Soil densification effect can be taken into account by cyclic loading. Is defined by three types of yield functions : shear (shear hardening),Ĭompression (cap hardening), and pressure cut-off. In elastic region, nonlinear elastic behavior can be simulated, elastic modulusĬhanges according to the effective pressure applied. Main Menu > Analysis > Setting > Unit System> kN>m>sĦ Pile Elastic 210,000,000 0.3 78. Double click GTS NX 2D liquefaction_start.gtbģ. Starting Files Required: GTS NX 2D liquefaction tutorial_start.gtbĢD Liquefaction Analysis of Bridge AbutmentĢ. Check the eigenvalue of ground through Eigenvalue analysis, Analyze ground dynamic behavior affected by earthquake.ĥ. Model the load in surrounding ground generated by earthquake and evaluate dynamic behavior and vibration effect of ground and abutment.Ĥ. Pile elements are modeled as beam elements and embedded in Embankment, UBC Sand, and Soft Rock layers.ģ.
Plane strain elements are used to model both the ground conditions and Abutment.Ģ. Required advanced training and Coding for FLAC modelsġ. More elaborate techniques are generally warranted and are rather easy to doīased on finite difference or finite element techniquesĭeformation can be estimated using elasto-plastic or other constitutive models Outdated and should only be used for screening purposes. Is only a relative index of slope stability Method has been shown to be unreliable for soils with significant pore pressureīuildup during cycling (i.e., not valid for liquefaction). Single, constant, unidirectional load is crude.
Representation of the complex, transient, dynamics of earthquake shaking by a Sloping ground and ground next to rivers and lakes may slide on a liquefied soil layer Soil particles can no longer support all the weight.īridges and large buildings constructed on pile foundations may lose support from theĪdjacent soil and come to rest at a tilt after shaking. Sand and excess water to force its way to the ground surface. The pressures generated during large earthquake shaking can cause the liquefied Soil/sand is reduced by earthquake shaking or other rapid loading. Soil liquefaction is a phenomenon in which the strength and stiffness of a saturated Numerically Based Analysis- Finite Element Method Pseudostatic Analysis - Limit Equilibrium Method Integrated Solver Optimized for the next generation 64-bit platformįinite Element Solutions for Geotechnical Engineering