Protection of Buried Pipelines Using a Combination of Geocell and Geogrid Reinforcement: Experimental Studies

Hegde, A.; Kadabinakatti, S.; Sitharam, T. G.

doi:10.1061/9780784413401.029

Cited by 18 publications

(5 citation statements)

References 17 publications

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“…The interconnected cells in the geocell form a slab that behaves like a large pad that spreads the applied load over a wider area. Many researchers in the past have highlighted the advantages of using the geocells in geotechnical engineering applications (Moghaddas Tafreshi and Dawson, 2010;Pokharel et al, 2010;Lambert et al, 2011;Yang et al, 2012;Thakur et al, 2012;Sitharam and Hegde, 2013;Mehdipour et al, 2013;Hegde and Sitharam, 2014a, b;Moghaddas Tafreshi et al, 2014;Hegde et al, 2014;Indraratna et al, 2014). Tavakoli et al (2013) highlighted the beneficial use of geocells in protecting the buried pipelines in their studies.…”

Section: Introductionmentioning

confidence: 96%

Experimental and numerical studies on protection of buried pipelines and underground utilities using geocells

Hegde

Sitharam

2015

Geotextiles and Geomembranes

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Section: Introductionmentioning

confidence: 96%

Experimental and numerical studies on protection of buried pipelines and underground utilities using geocells

Hegde

Sitharam

2015

Geotextiles and Geomembranes

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“…According to a study by Palmeira and Andrade [22], the stress and deformation generated near the buried pipes were reduced when a geosynthetic layer was installed near the buried pipes. Hegde, et al [23] and Hegde and Sitharam [24] conducted experiments and numerical analyses for reinforcing the sand with geocells. They discovered that the geocells distribute the underground stress in the lateral direction, thereby reducing the load that is acting on the buried pipes.…”

Section: Literature Reviewmentioning

confidence: 99%

Reinforcement Effect of a Concrete Mat to Prevent Ground Collapses Due to Buried Pipe Damage

Park

Chung²,

Hong³

2020

Applied Sciences

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This study described a ground reinforcement effect of a concrete mat, in order to apply a concrete mat for ground subsidence restoration of an open cut. A concrete mat can prevent the expansion of a cavity and relaxation area underground due to buried pipe damage when the buried pipe is in use. An experimental study was conducted to analyze the stress distribution characteristics of an underground area by ground reinforcement of a concrete mat. In addition, a numerical analysis was performed to estimate the range of underground reinforcement of a concrete mat. As an experiment results, the maximum stress reduction ratio of the concrete mat in the underground was 28.5% to 30.9%, which means the reinforcement effect of the concrete mat, according to the installation depth of the concrete mat. The finite element analysis (FEA) results showed that the installation depth of the concrete mat differed in various scenarios, in order to secure the reinforcement effect of the concrete mat according to the load conditions (point and uniform load). Therefore, the reinforced depth of a concrete mat should be determined by the load type on the surface.

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“…The interface strength between the geogrid and soil is a critical factor in determining the effectiveness of such reinforcement systems [6][7][8]. Insufficient interface strength can lead to premature failure, posing risks to the stability of structures [9][10][11]. Researchers have explored various strategies to enhance reinforcement effectiveness to address challenges associated with inadequate geogrid-soil interface strength [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Bearing Capacity and Reinforced Mechanisms of Horizontal–Vertical Geogrid in Foundations: PFC3D Study

Wu,

Zhang,

Gao

et al. 2024

Buildings

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The study presents a novel meshed horizontal–vertical (H–V) geogrid, offering promising advancements in geotechnical structure performance. The study pioneers a modeling approach for H–V geogrid foundation bearing capacity with discrete element method, expanding understanding and optimizing design strategy. By analyzing the granular displacement, contact force distribution, and vertical stress distribution within the foundation system, the study examines the impact of burial depth, vertical element height, and the number of vertical elements on H–V reinforced foundations. The findings suggest that employing a burial depth equivalent to the width of the footing enhances bearing capacity compared to conventional geogrid applications, with depths set at 0.4 times the width of the footing. This enhancement is attributed to forming a deeper slip surface in H–V systems. Moreover, raising vertical elements to 0.6 times the width of the footing enhances bearing capacity with minimal increase in geogrid usage, indicating a strategic approach to reinforcement. Increasing the number of vertical elements, particularly with three pairs, significantly enhances bearing capacity by reinforcing lateral restraint on the soil and promoting stress homogenization, thereby augmenting the “deep-footing” effect. The technical analysis underscores the efficacy of H–V geogrids in bolstering the bearing capacity of reinforced foundations, which is attributed to the robust grip and interlocking mechanism facilitated by these geogrids’ vertical ribs and mesh structure, which augment lateral confinement and diminish horizontal soil displacement.

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Protection of Buried Pipelines Using a Combination of Geocell and Geogrid Reinforcement: Experimental Studies

Cited by 18 publications

References 17 publications

Experimental and numerical studies on protection of buried pipelines and underground utilities using geocells

Experimental and numerical studies on protection of buried pipelines and underground utilities using geocells

Reinforcement Effect of a Concrete Mat to Prevent Ground Collapses Due to Buried Pipe Damage

Bearing Capacity and Reinforced Mechanisms of Horizontal–Vertical Geogrid in Foundations: PFC3D Study

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