Joint Strength and Wall Deformation Characteristics of a Single-Cell Geocell Subjected to Uniaxial Compression

Hegde, A.; Sitharam, T. G.

doi:10.1061/(asce)gm.1943-5622.0000433

Cited by 40 publications

(18 citation statements)

References 17 publications

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“…where M = section modulus of HDPE geocell D = diameter of geocell e v = vertical strain e h = horizontal strain The section modulus of the geocell was calculated as 2260 lb/in. (396 kN/m), which was obtained from the elastic modulus of the HDPE geocell (23). The actual shape of the geocell is generally observed to be elliptical (49), however, for simplicity, the geocell is assumed to be circular with the equivalent diameter of 9.50 in.…”

Section: Reinforcement Mechanism For Geocell Reinforced Base Layermentioning

confidence: 99%

“…Previous studies have shown that the geocell provides additional confinement, which will increase the pavement stiffness and subsequently decrease the permanent deformation ( 46 ). When the vertical load from the tire is applied to the geocell reinforced pavement system, horizontal stresses will be mobilized within the infill material, which imparts the active earth pressure on the geocell wall ( 23 , 47 ).…”

Section: Reinforcement Mechanism For Geocell Reinforced Base Layermentioning

confidence: 99%

“…In addition to the vertical deformation, the infill RAP material will also tend to move in the lateral direction, which will generate hoop stresses on the geocell. Eventually, these hoop stresses will provide additional confining stress for the infill material ( 23 ). This confining stress for the 4 in.…”

Section: Reinforcement Mechanism For Geocell Reinforced Base Layermentioning

confidence: 99%

“…This necessitates three-dimensional confinement to control the lateral movements. Geocells are a three-dimensional honeycomb structure generally made from high-density polyethylene (HDPE) sheets, which can provide lateral confinement for the infill materials ( 22 , 23 ). Large-scale repeated load tests conducted by various researchers indicated that geocell reinforcement could improve the strength and stiffness of the base layer by offering lateral confinement ( 24 – 27 ).…”

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confidence: 99%

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Field Performance of Geocell Reinforced Recycled Asphalt Pavement Base Layer

Khan

Biswas

Banerjee

et al. 2020

Transportation Research Record

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Utilization of 100% recycled asphalt pavement (RAP) material in the base layer of road construction can provide a cost-effective and sustainable solution. However, excessive permanent deformation of RAP reduces its applicability for such projects. In this study, the effectiveness of geocell reinforced RAP base (GRRB) layers for the flexible pavement sections constructed over the expansive subgrade is investigated. Furthermore, the mechanism involved in the improvement of material stiffness because of the development of additional confining stress in the reinforced base layer is also presented in this paper. During the initial monitoring period, the average vertical compressive stresses over the pavement subgrade for the reinforced sections were observed to be significantly lower in comparison with the corresponding unreinforced sections. The preliminary results indicate that GRRB layers can significantly improve the performance of the pavement by controlling the subgrade deformation.

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Section: Reinforcement Mechanism For Geocell Reinforced Base Layermentioning

confidence: 99%

Section: Reinforcement Mechanism For Geocell Reinforced Base Layermentioning

confidence: 99%

Section: Reinforcement Mechanism For Geocell Reinforced Base Layermentioning

confidence: 99%

mentioning

confidence: 99%

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Field Performance of Geocell Reinforced Recycled Asphalt Pavement Base Layer

Khan

Biswas

Banerjee

et al. 2020

Transportation Research Record

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“…The idea behind forming bamboo cells is to extract the additional confining effect on the encapsulated soil by virtue of its 3-dimensional shape. Many researchers in the past have demonstrated the beneficial aspects of geocells and its ability to extract additional confinement on the infill soil [1][2][3][4][5][6][7][8][9]. Hegde and Sitharam [10] observed that the performance of the geocell can be improved by providing the basal geogrid.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Analytical Studies on Soft Clay Beds Reinforced with Bamboo Cells and Geocells

Hegde

Sitharam

2015

Int. J. of Geosynth. and Ground Eng.

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This manuscript deals with the experimental and analytical studies carried out to explore the possibility of using naturally available bamboo to increase the bearing capacity of the soft soil. In order to extract the additional confinement effect on the soil, 3 dimensional-cells are formed from the locally available bamboo known as bamboo cells. The performances of the bamboo cells are compared with the commercial geocells. Further, a planar reinforcement in the form of bamboo grid was provided at the base of bamboo cells and the performance was compared with the clay bed reinforced with the combination of geocell and geogrid. The results of the laboratory plate load tests suggested that the ultimate bearing capacity of the clay bed reinforced with combination of bamboo cell and bamboo grid was about 1.3 times higher than the geocell and geogrid reinforced clay beds. In addition, a substantial reduction in the settlement was also observed. An analytical model was also proposed to estimate the bearing capacity of the clay bed reinforced with bamboo cells and bamboo grids. The model comprised of three mechanisms, namely the lateral resistance effect, vertical stress dispersion effect and membrane effect. The results predicted from the analytical model were found to be in good agreement with the experimental results. In a larger perspective, this study proposes a cost effective ground improvement technique in soft soils as an alternative to geocells and geogrids.

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