geotechnical analysis Articles

  • Soil Column Drainage Modelling Using a Geotechnical Centrifuge

    Equipment has been developed to facilitate supplying a soil column with water or draining a soil column under conditions of constant head while the soil column is under centrifugal forces in a geotechnical centrifuge. Accurate monitoring of the water mass transfer is also facilitated by the equipment. At the completion of a modelling sequence, the soil column may be partitioned for moisture ...


    By ASTM International

  • Combination of TenCate corporate capabilities offer distinct advantage with both geotechnical and geosystems expertise - Case Study

    Mirafi and Geotube Technology combine for demanding, large-scale dewatering project in Brazil. Geotechnical projects come in a variety of sizes and scope — each presenting unique challenges. Many times these challenges are multi-faceted and require engineers to apply different disciplines and use a mix of products and methodologies to solve their project issues. ...

  • Balefill Slope Stability Analysis

    The unique ability of SVSlope to search for the most critical slip surface has application in the area of balefill slope stability analysis. In a balefill, the incoming waste stream is compacted into rectangular bales prior to landfilling. Balefills are operated separately from landfills, where the incoming waste is usually condensed in-situ by compactors. The study outlined in this article ...


    By SoilVision Systems Ltd.

  • Rigorous Theoretical Analysis of a Flow Pump Permeability Test

    With the growing importance of environmental issues in our society, extremely low-permeability geotechnical materials are being studied increasingly for their long-term stability and effectiveness in retarding the transport of hazardous wastes. Relatively rapid measurements of the permeability and specific storage of the materials, using relatively low hydraulic gradients, can be obtained with a ...


    By ASTM International

  • Why perform 3D slope stability analysis

    Background The benefits associated with performing 3D slope stability analyses were expounded by Dr. Del Fredlund in the 1970s.  Over the years a number of 3D methods of analysis have been researched. These methods have ranged from the method of columns to approaches based on variational calculus, and more recently, the use of dynamic programming. The interest in 3D slope stability analysis ...


    By SoilVision Systems Ltd.

  • Balefill slope stability analysis using SVSlope

    The unique ability of SVSlope to search for the most critical slip surface has application in the area of balefill slope stability analysis. In a balefill, the incoming waste stream is compacted into rectangular bales prior to landfilling. Balefills are operated separately from landfills, where the incoming waste is usually condensed in-situ by compactors. The study outlined in this article ...


    By SoilVision Systems Ltd.

  • Hydrodynamic Aspects in the Rotating Clyinder Erosivity Test

    A comparison of different experimental installations used to study clay erosivity is presented. Flow in a rotating cylinder used in geotechnical laboratories is studied in detail. Analysis of the shear stress is presented, and conclusions are drawn as to the limitations of the quantitative evaluations of the critical shear stress in the rotating cylinder ...


    By ASTM International

  • Pick of the programs: slide & rocsupport

    The Geotechnical and Geo-environmental Software Directory (GGSD), established in February 1996 by Mott MAcDonald's Tim Spink, provides the most comprehensive listing of geotechnical/geoenvironmental software available. This directory (www.ggsd.com) is revised every two monthe. Here we summarise updated and new entries in the geotechnical category since February and Spink reviews ...


    By Rocscience Inc.

  • Smart Monitoring Solutions for a Hassle Free Project

    Geotechnical monitoring is very much responsible for the successful completion of any project. This monitoring is done with the help of the geotechnical systems. There are different companies that provide the customized solutions for the geotechnical monitoring. Such solutions include comprehensive programming like designing the systems, installation and delivering on the site, access of the data ...


    By Soldata Limited

  • A New Method to Measure the Effective Porosity of Clays

    The effective porosity is a required parameter for the mass flow rate calculations in groundwater hydrogeology. It is also a useful parameter in geotechnical engineering. In this paper, a methodology based on the tracer analysis technique is proposed to measure the effective porosity of clays. A test apparatus was developed and operational conditions were optimized to measure the effective ...


    By ASTM International

  • Random fields in SVSlope and SVFlux

    Geotechnical engineering, as a general practice, has always struggled with quantifying the significant amount of variability that can be present at any given site. There may be variability present in field sampling methods, equipment, lab testing procedures, level of training of field personnel, or many other such factors. One particular problematic aspect of slope stability analysis is the ...


    By SoilVision Systems Ltd.

  • A New Approach to Measuring Dilatancy in Saturated Sands

    The determination of in situ properties of sand has proven to be a difficult objective, especially when it includes assessing volume change characteristics like dilatancy. Difficulty in obtaining representative undisturbed specimens as well as problems with extrapolating laboratory test results to the field has caused many to place increased reliance on in situ testing. One such test that is ...


    By ASTM International

  • Analyzing and representing Downhole information on a daily basis using ESdat and Encom Discover - Case Study

    GHD used ESdat to optimize data collection and analysis and minimize data handling when working with downhole data information. 3D data output was provided by Encom Discover. Overview GHD is an professional services consultancy – 6000+ staff and offices in Australia, Middle East, Asia & Americas.  GIS used extensively within GHD with a ...

  • Seismic refraction and MASW case study

    Proposed Gatun Bridge, Colon, Panama The Autoridad del Canal de Panama (ACP) conducted a geotechnical investigation along the footprint of a proposed bridge crossing of the Panama Canal, north of the Gatun Lock. As part of the geotechnical study, GeoView, Spotlight Geophysics and ATI Panamericana were tasked to provide seismic P-wave and S-wave velocity structure of the subsurface. The ...


    By GeoView, Inc.

  • Alternate point estimation method

    One of the primary drawbacks to a Monte Carlo analysis is the large number of model runs required in order to determine the relative confidence of each input variable on impacting the factor of safety. The Alternate Point Estimation Method (APEM) allows a dramatic reduction in the number of model runs required to do a statistical analysis. The following table indicates the number of model runs ...


    By SoilVision Systems Ltd.

  • Research leads to more efficient mining projects

    Over the last 10 years underground mining excavations around the world have become more reliable and efficient, thanks to a package of software programs designed intially by researchers at the faculty. Incorporating leading-edge geomechanics research findings into easty-to-use software tools for the geotechnical and mining industries. Professor John curran, Robert M. Smith Chair of Georechnical ...


    By Rocscience Inc.

  • Making remaining life predictions for better pipeline asset management

    ABSTRACT Most underground assets owners would like to know what the probability is for failure of a given pipeline asset as a function of material type, function type, age of the asset, geotechnical environment, and other factors, when we know past failure distributions, predominant failure mechanisms, and other attributes. While most underground utilities have collected voluminous data that ...

  • The SESAMO early warning system for rainfall-triggered landslides

    The development of Web-based information systems coupled with advanced monitoring systems could prove to be extremely useful in landslide risk management and mitigation. A new frontier in the field of rainfall-triggered landslides (RTLs) lies in the real-time modelling of the relationship between rainfall and slope stability; this requires an intensive monitoring of some key parameters that ...


    By IWA Publishing

  • A Hollow Cylinder Torsional Simple Shear Apparatus Capable of a Wide Range of Shear Strain Measurement

    The lack of high-quality data at small strains under monotonic loads has led to the assumption of linear elasticity in small strain analysis and the use of low values of stiffness for analysis of geotechnical structures under working loads. In addition, since most simple shear apparatuses cannot measure lateral stresses, various assumptions have to be made in order to define the failure strength ...


    By ASTM International

  • Interview with Ronald Ebelhar, 2015 Chairman of the ASTM Board

    Ron Ebelhar has provided leadership in civil engineering projects and ASTM technical committee work since the 1970s. This year, he brings his experience to his elected position as chairman of the ASTM board of directors. You have worked on dozens of engineering projects since getting your degrees in civil engineering. What are some of the most interesting and challenging jobs you ...


    By ASTM International

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