Performance evaluation of geocell-reinforced pavements

Mamatha, K. H.; Dinesh, S. V.

doi:10.1080/19386362.2017.1343988

Cited by 31 publications

(10 citation statements)

References 10 publications

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“…As outlined above, successful buried pipe installations will be those where the pipe is protected from excessive stresses and/or deformations and where the ground surface does not suffer excessive deformation under loading. Geocells can achieve the former as reported in the literature referred to a few lines earlier in this paper and can reduce rutting (Mamatha and Dinesh 2019). Laboratory and field tests of backfill material(s) are commonly performed as a key means of assessing the likelihood of failure of such installations.…”

Section: Objectivesmentioning

confidence: 82%

Experimental Evaluation of Geocell and EPS Geofoam as Means of Protecting Pipes at the Bottom of Repeatedly Loaded Trenches

et al. 2020

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With growing populations and continuing urban development, embedding pipes in the ground that are then over-run by traffic is inevitable. This paper describes full-scale prototype tests on high-density polyethylene (HDPE) flexible pipes (of 250 mm diameter), buried at shallow depth, under simulated traffic loading. The paper studies the effect of surface load diameter (0.6×, 0.8× and 1× pipe diameter) and the amplitude of repeated load (400 or 800 kPa) on pipe behavior. The effects of EPS (expanded polystyrene) geofoam block of various densities and also of geocell as a 3D reinforcement, in reducing the pressure transferred to the pipe, the deformation of the pipe and the surface settlement of the backfill were investigated.The results show that, with increase in loading surface diameter, the pipe's vertical diametral strain, the pressure transferred to the pipe and the surface settlement grow significantly, irrespective of applied pressure. Using an EPS block over the pipe, increases the soil settlement but reduces transferred pressure onto the pipe and, consequentially, results in lower pipe deformations. The increase in density of an EPS block helps improve response, but was still found to be insufficient to prevent increase in surface deflections. The use of geocell reinforcement beneath the loading surface not only reduces the pressure transferred to the pipe and decreases its deformation, but also significantly negates the tendency of the EPS block to increase the soil surface settlement.Thus, a geocell reinforcement layer placed over two EPS geofoam blocks (with a total thickness 0.3×, and width 1.5×, the pipe diameter) all above a pipe buried at a depth of twice pipe diameter, was found to deliver acceptable, stable response. By these means, the vertical pipe strain, transferred pressure over the pipe and soil surface settlement were reduced, respectively, by 0.45, 0.37 and 0.53× those obtained for the comparable unmodified buried pipe installation, and are within allowable limits.

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Section: Objectivesmentioning

confidence: 82%

Experimental Evaluation of Geocell and EPS Geofoam as Means of Protecting Pipes at the Bottom of Repeatedly Loaded Trenches

et al. 2020

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“…The FEM results also show a similar trend; it was observed vertical stress decreases from 165 to 110 kPa. Figures 11,12,13 and 14 show the plots of vertical stress at the interface of the dolomite limestone aggregate base and dredged soil subgrade. These data are taken at a depth equal to the height of the base layer.…”

Section: Deformations At the Top Of The Basementioning

confidence: 99%

“…The soil-geocell composite layer behaves as a rigid mat, transferring the traffic loads over a much wider subgrade area, thereby improving its load-bearing capacity [3,4]. Researchers have concluded that geosynthetics can prolong the service life of pavements [5][6][7], decrease the thickness of a base for a given design life [8,9] and delay rutting developments [10][11][12]. It was reported that the geocell performs better when placed at the interface of base and subgrade [13,14].…”

Section: Introductionmentioning

confidence: 99%

A Parametric Study on Pavement with Geocell Reinforced Rock Quarry Waste Base on Dredged Soil Subgrade

Sheikh

Mandhaniya

Shah

2021

Int. J. of Geosynth. and Ground Eng.

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Dredging produces a vast amount of waste from water bodies worldwide, whose valorization is an environmental problem. Weak dredged soil requires some treatment to provide them with adequate strength for construction applications. In the present study, static plate load tests are conducted to understand the effect of high-density polyethylene geocell reinforcement on limestone aggregates and quarry waste on subgrade (dredged soil). Finite element analysis was carried out to compare the results with the experimental analysis. The dolomitic limestone and crushed quarry waste are waste materials readily available in the near vicinity. Static plate load tests were observed for three different geocell heights (100, 125 and 150 mm) in terms of increase in bearing capacity and vertical stress distribution for three different thicknesses of bases (120, 150 and 170 mm). This study aims to present the results in terms of load versus deformation and vertical stress distribution. The results showed that the reinforced layer had undergone a maximum reduction in deformation in comparison to the unreinforced bases. Due to the inclusion of geocell, the average bearing capacity improvement factor enhances, and the vertical stress distribution increases significantly. The average bearing increases by 50% in the case geocell reinforced test section. The results from this study suggest that rock quarry waste can be used as an alternative base material for pavement construction if proper geocell confinement is provided. The present study results will be used as a reference to support that valorization of waste can be beneficial for both nature and the economy.

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“… plastics [25],  other materials [26], [34]. Products based on asphalt or concrete can be considered above all as fixed (non-transferable) terrain consolidation means.…”

Section: A Evaluated Mobility Support Meansmentioning

confidence: 99%

Possible Ways of Evaluation of Industrially Manufactured Means for Low-Bearing Terrain Strengthening Usable in Military Operations

Palasiewicz¹,

Záleský²,

Kyjovský³

et al. 2021

International Journal on Advanced Science, Engineering and Information Technology

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Performance evaluation of geocell-reinforced pavements

Cited by 31 publications

References 10 publications

Experimental Evaluation of Geocell and EPS Geofoam as Means of Protecting Pipes at the Bottom of Repeatedly Loaded Trenches

Experimental Evaluation of Geocell and EPS Geofoam as Means of Protecting Pipes at the Bottom of Repeatedly Loaded Trenches

A Parametric Study on Pavement with Geocell Reinforced Rock Quarry Waste Base on Dredged Soil Subgrade

Possible Ways of Evaluation of Industrially Manufactured Means for Low-Bearing Terrain Strengthening Usable in Military Operations

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