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Geosynthetics International

image of Geosynthetics International
ISSN: 1072-6349
E-ISSN: 1751-7613

Impact Factor 1.676. Geosynthetics International is ranked 4/268 in the Scopus category of Geotechnical Engineering and Engineering Geology and 17/32 in the Web of Science category of Engineering, Geological.

An online only, rapid publication journal, Geosynthetics International – an official journal of the International Geosynthetics Society (IGS) – publishes the best information on current geosynthetics technology in research, design innovation, new materials and construction practice.

Topics covered: the whole of geosynthetic materials (including natural fibre products) such as research, behaviour, performance analysis, testing, design, construction methods, case histories and field experience. Geosynthetics International is received by all members of the IGS as part of their membership, and is published in e-only format six times a year.

  • - To read the Editor's best papers for free click here.
  • - To download free papers from the journal's archive (before 2003), visit the IGS website by clicking here.
  • - To read a list of the most cited papers over the lifetime of the journal, click here.
  • - To read a list of the most highly cited papers over the last 5 years, click here
  • - It is free to submit to this journal. Papers appear Ahead of Print (below) as soon as they are ready to be published. Ahead of print articles are fully citable using the DOI system.
  • - To view Guidelines for Authors for Geosynthetics International, click here

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  • Geosynthetics applications for the mitigation of natural disasters and for environmental protection
    Author(s): H. Brandl
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  • ABSTRACT: The paper first describes the versatile application of geosynthetics for the mitigation of floods, landslides, rockfalls, debris flows and avalanches. It focuses on dykes or flood protection dams, on geosynthetic-reinforced stabilising fills (up to 130 m height) and barrier dams. Geosynthetic-reinforced floating embankments (up to 70 m height) in creeping slopes and seismic areas show clear advantages over rigid structures (e.g. bridges) not only from a geotechnical point of view but also regarding economy, maintenance and environmental aspects. Environmental protection is predominantly considered by gaining renewable energy from the ground via ‘energy-geosynthetics'. Several other applications are also mentioned. Compaction optimisation and control of geosynthetic–soil structures is recommended by roller-integrated CCC (continuous compaction control), thus improving their behaviour significantly.

  • Best Geosynthetics International Paper for 2011
    Author(s): R.J. Bathurst; J.P. Giroud
    • Performance of geogrid-encased stone columns in soft ground: full-scale load tests
      Author(s): C. Yoo; D. Lee
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    • ABSTRACT: The geogrid-encased stone column (GESC) system, which increases the confinement effect, has been developed to improve the load-carrying capacity of stone columns. This paper presents the results of an investigation on improvement in load-carrying capacity and settlement reduction of a GESC using field-scale load tests. Also, the effect of the geogrid encasement length and column strain is investigated. In addition, isolated GESC behaviour was compared to rammed-aggregate pier (RAP) and conventional stone column (CSC) behaviour. The results show that additional confinement provided by the geogrid encasement increased the stiffness of the stone column and reduced the settlement of the soft ground. Also, bulging of the GESC was observed to occur directly beneath the base of the geogrid encasement. The improvement in the performance of GESC was found to be significant, even with partial encasement.

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  • Equipment pressure applied to geomembrane in composite liner system
    Author(s): T.D. Stark; L.F. Pazmino; C.J. McDowell; R. Phaneuf
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  • ABSTRACT: This technical paper presents the results of a test pad at an operating municipal solid waste landfill that measured pressures applied to the primary geomembrane in the double composite liner system used at the site. The pressures were measured with two pressure cells placed on top of the geomembrane and covered with varying thicknesses of sandy structural fill and rounded stone, i.e. a leachate collection and removal layer stone. The pressures were applied by two types of dozers to investigate the magnitude of applied pressures and the effect of equipment on the applied pressure. In general, the results show increased pressure with decreasing cover layer thickness, increasing speed, and turning over of the pressure cells. The data can be used to estimate the minimum layer thickness to limit the pressure applied to an underlying geomembrane to a tolerable value, e.g. 41.4 kPa, and prevent geomembrane damage or puncture during construction.

  • Modelling of ballast–geogrid interaction using the discrete-element method
    Author(s): J.-F. Ferellec; G.R. McDowell
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  • ABSTRACT: The interaction between geogrid and ballast is investigated using the discrete-element method (DEM). The DEM used can take into account the real shape of ballast stones. The paper shows that it is possible to reproduce the mechanical behaviour of real geogrids by bonding an array of spheres with bonds that can transmit forces and moments. Pullout test simulations using both spheres and realistic shapes (‘clumps') for the ballast material are used to determine the influence of the shape of ballast stones on the ballast–geogrid interlock. The paper shows that better interlocking between geogrid and ballast is achieved with realistic particles and highlights the importance of modelling accurately the shape of the particles.

  • Micro-mechanism of the interaction between sand and geogrid transverse ribs
    Author(s): J. Zhou; J.-F. Chen; J.-F. Xue; J.-Q. Wang
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  • ABSTRACT: To study the interaction between sand particles and geogrids, pullout tests were performed on one type of geogrid in Pingtan medium sand. The sand motion around the ribs was captured by high-resolution digital camera and CCD camera. The images were analysed with the aid of digital photography measurement and micro-image analysis. Microscopic particle motion and displacement fields around the transverse ribs were then obtained to verify the macro behaviour of the sand–rib interaction. It was found that the thickness of shear band increases with the normal stress applied, and the shear zone is asymmetrical to the soil–rib interface. A near wedge shape shear zone was observed by analysing the shear strain around the ribs, which indicated that a punching shear failure mechanism may be applicable to the tested geogrid in medium-dense sand. Comparison of various models for bearing capacity of geogrids shows that the size and shape of bearing members should be considered in the calculation of bearing resistance of geogrids.

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