Geoteknikk University

This book presents a one-stop reference to the empirical correlations used extensively in geotechnical engineering. Empirical correlations play a key role in geotechnical engineering designs and analysis. Laboratory and in situ testing of soils can add significant cost to a civil engineering project. By using appropriate empirical correlations, it is possible to derive many design parameters, thus limiting our reliance on these soil tests. The authors have decades of experience in geotechnical engineering, as professional engineers or researchers. The objective of this book is to present a critical evaluation of a wide range of empirical correlations reported in the literature, along with typical values of soil parameters, in the light of their experience and knowledge. This book will be a one-stop-shop for the practising professionals, geotechnical researchers and academics looking for specific correlations for estimating certain geotechnical parameters. The empirical correlations in the forms of equations and charts and typical values are collated from extensive literature review, and from the authors' database.

The suite consists of 8 products: SLOPE/W for slope stability; SEEP/W for groundwater seepage; SIGMA/W for stress-deformation; QUAKE/W for dynamic earthquake; TEMP/W for geothermal; CTRAN/W for contaminant transport; AIR/W for air flow; VADOSE/W for vadose zone & covers.

GeoStudio 2D (SLOPE/W) offers the foundational capability to perform Limit Equilibrium slope stability analysis for soil and rock. GeoStudio 2D offers a comprehensive list of features, including: Rigorous formulation of limit equilibria. + 13 analysis methods, including Morgenstern-Price and Spencer. + Various slip surface search techniques including Entry-Exit, Grid and Radius, and Cuckoo. + Rigorous algorithm for solving nonlinear equations to calculate the safety coefficient. + Definition of pore water pressure with piezometric lines, spatial functions, Ru and B-bar. + Probabilistic and sensitivity analysis capabilities. + Partial factor, staged pseudostatic, and staged rapid decay formulations. + Complete library of material models for soil and rock. + Functions of reinforcement, overload and earthquake loads. + Supplier reinforcements library with products from Huesker, Maccaferri, TenCate and Tensar. + Limit state design support according to the Eurocode or for design by load resistance coefficients.

GeoStudio 2D Ultimate (SLOPE/W + SEEP/W + SIGMA/W + QUAKE/W) expands the capability of the GeoStudio 2D with functionality to deal with the most challenging geotechnical projects. It includes features to analyse static and dynamic stress and deformation within soil or rock, coupled consolidation, and finite element stability methods.

Key features: Stability Calculations - Check the stability of slopes, rock walls and fortified embankments. Fencing structures - designing and checking the enclosing structures of foundation pits, underground structures. Walls and supporting structures - Due diligence of walls and gabion structures. 

Shallow foundations - checking the bearing capacity and settlement of individual strip and slab foundations. Deep foundations - checking the bearing capacity and settlement of piles and pile clusters. 

Settlement - calculation of settlement and consolidation, settlement of shallow and deep foundations. 

Tunnels and Shafts - Analyze tunnels, underground structures, and vertical shafts. 

Geological surveys - creating a model of the tunnel and base layers based on geological survey data. Field Tests - Structural calculations based on field test data (SPT, CPT, DMT, PMT)

Reliably solve infrastructure challenges: Easily generate and scale construction sequences for excavations. Facilitate steady-state groundwater flow calculations, including flow-related material parameters, boundary conditions, drains, and wells. Use interfaces and embedded pile elements to model movement between soil and foundation, such as slipping and gapping. Get trustworthy results with realistic soil models and a complete portfolio of visualization abilities.

Get realistic assessments of stresses and displacements: To meet the unique geotechnical challenges of soil structure interactions, PLAXIS 3D offers different calculation types, such as Plastic, consolidation, and safety analysis. A range of material models for predicting the behavior of various soils and rock types, combined with robust calculations, helps ensure reliable results. You can display these forces in various ways and use cross-section applications to inspect certain areas in greater detail.

Drive efficiency with multidiscipline workflows: Create logical geotechnical digital workflows that take projects from subsurface imports through design and analysis to various outputs.

PLAXIS 3D Ultimate extends the capabilities of PLAXIS 3D Advanced so you can analyze the effects of vibrations in the soil, like earthquakes and moving traffic loads. You can also simulate complex hydrological conditions through time-dependent variations of water levels or flow functions on model boundaries, as well as soil boundaries.

3D Geotechnical Dynamic Modeling: PLAXIS 3D Ultimate is an easy-to-use software that is suited for more advanced seismic analysis. When you need something that goes beyond the low-frequency vibrations, this is the choice for you. 

You can: Analyze the effects of human-made or natural seismic vibrations in soil: Perform analyses on the effects of vibrations in the soil from earthquakes, pile driving, vehicle movement, heavy machinery, or train travel + Accurately calculate the effects of vibrations with a dynamics analysis when the frequency of the dynamic load is higher than the natural frequency of the medium + Perform a ground response analysis and liquefaction analysis using the UBCSand model. 3D Geotechnical Groundwater Flow: Go beyond the default options of steady-state groundwater flow analysis of PLAXIS with PLAXIS 3D Ultimate. + Simulate the unsaturated, time-dependent, and anisotropic behavior of soil + Simultaneously calculate changes in pore pressures and deformation by performing a fully-coupled flow-deformation analysis + Use the Flow-only mode to exclude displacements and stresses from the calculation if you are only interested in groundwater flow, making it easier to use.