reinforcement geogrid Articles

  • Bearing Capacity of Strip Foundation on Geogrid-Reinforced Clay

    Laboratory model test results are presented for the ultimate bearing capacity of a strip foundation supported by a saturated clay layer reinforced by layers of geogrid. The tests were conducted in one type of clay. The average moisture content of the clay was varied, yielding varying undrained shear strengths. Laboratory tests were conducted to determine the critical nondimensional values for the ...


    By ASTM International

  • Ultimate Bearing Capacity of Rectangular Foundations on Geogrid-Reinforced Sand

    Model test results for the ultimate bearing capacity of rectangular surface foundations supported by geogrid-reinforced sand are presented. The tests were conducted using one type of sand at one relative density of compaction with only one type of geogrid. The length-to-width ratios of the model foundations were varied as 1, 2, 3, and 8. Based on the model test results, the maximum required ...


    By ASTM International

  • Soil-Geogrid Reinforcement Interaction by Pullout and Direct Shear Tests

    Pullout and direct shear tests have been conducted to investigate the soil-reinforcement interaction behavior in pullout and direct shear mechanisms. An apparatus—discussed in this paper—has been developed that is capable of performing both pullout and direct shear tests. Displacement measurements to monitor dilatancy on the backfill soil during pullout tests are incorporated in the apparatus. ...


    By ASTM International

  • Pullout Resistance of Steel Geogrids with Weathered Clay as Backfill Material

    The pullout resistance of welded steel geogrid reinforcement embedded in poor-quality, cohesive-frictional backfill material such as weathered clay was investigated. Laboratory pullout tests were conducted on various reinforcement sizes, mesh geometry, and compaction conditions of the backfill material. Field pullout tests were also conducted to investigate the pullout resistance of ...


    By ASTM International

  • Effects of Sustained and Repeated Tensile Loads on Geogrid Embedded in Sand

    Design methods for reinforced soil structures under static loading conditions are relatively well established. Little research has been conducted on the behavior of embedded geosynthetics subjected to repeated loadings. Such research is needed to improve the design of reinforced soil structures subjected to traffic and seismic loadings. The study reported here is related to the long-term ...


    By ASTM International

  • Strata Geogrid helps turn unusable land into premium Airport Parking in Seattle, WA

    Challenge Sea-Tac International Airport in Seattle, WA has grown to become the 18th busiest airport in the country and the need for convenient parking is a growing concern. To help provide needed parking, one of the area’s leading parking services, MasterPark Inc., sought to turn unusable land near the airport into a valuable $20-per-night parking lot. Five retaining walls up to 33 ...


    By Strata Systems, Inc.

  • Shear Strength Tests for Coarse Granular Backfill and Reinforced Soils

    In order to overcome the limitations of the current standard small direct shear box in testing the shear strength of coarse granular backfill materials, a large direct shear apparatus (1000 by 1000 by 940 mm) was constructed at Carleton University and a series of direct shear tests were conducted with coarse granular soils. In addition, several direct shear tests on soils reinforced with geogrids ...


    By ASTM International

  • Reinforced Soil within a Retaining wall provides solution for a factory site in Goa

    In order to ensure stability, Maccaferri India installs the MacRES Reinforced Soil (RS) wall system with concrete panel fascia and ParaWeb soil reinforcement into the Goa Industrial Construction site. Watson Pharma Pvt. Ltd. a global pharmaceutical company proposed to build a full fledged manufacturing unit at Verna, Goa. Verna Industrial Estate is located approximately 10 km north of the South ...


    By Officine Maccaferri S.p.A.

  • How Strata’s Microgrid reinforced a roadside slope and saved 30-percent in costs

    Challenge The City of Fairfield in Solano County, CA has many beautiful parks and trails enjoyed by residents year round. One of roadways stretching alongside one of these natural areas was threatened due to unstable soils and a failing slope. This posed safety concerns for the area. The roadway had a right of way to a state highway and the county and city were in need of a cost effective ...


    By Strata Systems, Inc.

  • Construction of a beltway in Bremen progresses case study

    Geogrids secure embankment reinforcements The western bypass around Bremen is not scheduled for completion until about 2011. Section 1 of the second construction phase has been under construction since 2002. The 3.3 km long core stretch of A281 is construction section 2/1. Its most prominent structure will be a 127 m long cable-stayed bridge supported by 50 m high pylons to be built over the ...


    By NAUE GmbH & Co.KG

  • A grid for subgrade stability

    With research to back up quantifiable benefits and recognized design standards, the use of geogrids may be ready for wider acceptance among North American railroads. A product with a 20-year plus track record is rarely referred to as "new." However, this is a label those involved with geogrids find themselves tagged with when it comes to the prod¬uct's use on North American railroads. While ...


    By Tensar International

  • Clemson road bridge case study

    Background The South Carolina Department of Transportation (SCDOT) needed to provide a right-of-way for an access road adjacent to a CSX Railroad line. The proposed Clemson Road Bridge overpass was a challenging project and SCDOT had three choices: Option 1: Construct a 1H:1V Reinforced Soil Slope (RSS) at the northern bridge abutment. Option 2: Lengthen the northern ...


    By Strata Systems, Inc.

  • Ämmässuo landfill, Finland case study

    Opened in 1987, the municipal landfill Ämmässuo in Finland extends over 50 ha, making it one of the largest in all of Scandinavia. Two test fields were set up to find a suitable solution for the surface sealing system and future slope reinforcement The structure of these fields consists of a mineral gas-drain layer, a mineral sealing layer, a geosynthetic clay liner, a protection ...


    By NAUE GmbH & Co.KG

  • Commerce Park Giesen-Harsum-Hildesheim case study

    Building on an old dump The communities Giesen and Harsum along with the City of Hildesheim, Germany jointly planned the construction of a commerce park covering an area of 240ha. The section of the premises on which buildings were to be erected encompassed an area of 50ha. The only access road passed over a former garbage and building-trash landfill. Dumping in this area was ...


    By NAUE GmbH & Co.KG

  • Pace properties case study

    Background Available property for development within the Interstate 285 perimeter in Atlanta is becoming increasingly scarce. A northwest portion of metropolitan Atlanta was becoming progressively more congested and sites previously considered too expensive or difficult to build upon were being targeted for development. The owners wanted to develop this site for a motel/suites ...


    By Strata Systems, Inc.

  • Titan Geosynthetics: A Major Solution for CN Rail - Case Study

    The Canadian National Railway (CN Rail) wanted to build an additional 6-track extension at the Transcona yard in Winnipeg, Manitoba. Heavy rail cars were expected to pass over this extension area and CN Rail was looking for an economical, fast, environmentally friendly and technically sound solution for their track extension. The site had swampy conditions with wet and soft clay soils. In fact, ...

  • Federal motorway A6 Mannheim-Heilbronn case study

    Stable RiStWag -construction guidelines for roadways in water preservation areas Included in the A6 federal motorway construction project lot Mannheim – Heilbronn/Weinsberg, AS Bad Rappenau – AS Neckarsulm is the widening of km 631+640 and km 641+060 to six lanes. This section is runs through a water preservation zone, type IIIa, protected under RiStWag. Because of this, a ...


    By NAUE GmbH & Co.KG

  • Donzi landfill expansion using stratagrid case study

    Background The Donzi Lane Landfill in Atlanta, GA had been in use since the 1970's for construction and demolition waste disposal. The site was nearing its capacity and additional landfill space was urgently needed due to the accelerating population growth and waste stream generated by development. Due to the high cost and long lead times for designing, permitting and constructing new ...


    By Strata Systems, Inc.

  • Case study - Log storage handling yard

    The logging yard at Canfor’s Fort St. John mill is subject to the heaviest loading operations in the worst soil conditions. Saturated peat with a CBR Cat 988H loaders weighing more than 43,000 kg, heavy hauling trucks, and other mechanical equipment created heavy rutting in the soft soil. The logs, stockpiled in huge, 6-metre high stacks, suffered from large settlement, which further ...


    By PRS Geo-Technologies

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you