Seismic response of reduced-scale modular block and rigid faced reinforced walls through shaking table tests

Latha, G. Madhavi; Santhanakumar, P.

doi:10.1016/j.geotexmem.2015.04.008

Cited by 61 publications

(14 citation statements)

References 28 publications

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“…Shaking table tests have shown that: -increasing the backfill density reduces the deformations significantly for both rigid faced and modular block walls, being the benefit more pronounced in modular block retaining walls; -reinforcements are more effective in reducing the deformations in modular block walls. Shaking table tests performed by [11] have also evidenced that the acceleration amplification is non-uniformly distributed along the height of the wall and it is not affected by the wall facing and inclusion of reinforcement.…”

Section: Physical Modelsmentioning

confidence: 95%

“…One of the main conclusions reported by [11] is that modular block walls performed better than the rigid faced walls for the same level of base shaking. Shaking table tests have shown that: -increasing the backfill density reduces the deformations significantly for both rigid faced and modular block walls, being the benefit more pronounced in modular block retaining walls; -reinforcements are more effective in reducing the deformations in modular block walls.…”

Section: Physical Modelsmentioning

confidence: 95%

“…The seismic response of geosynthetic reinforced retaining walls through shaking table tests carried out on models of modular block and rigid faced reinforced retaining walls was presented by [11]. Effects of backfill density, number of reinforcement layers and reinforcement type were studied.…”

Section: Physical Modelsmentioning

confidence: 99%

See 2 more Smart Citations

Review of Seismic Performance of Geosynthetic Reinforced Soil Retaining Walls

Vieira¹

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Section: Physical Modelsmentioning

confidence: 95%

Section: Physical Modelsmentioning

confidence: 95%

See 1 more Smart Citation

Review of Seismic Performance of Geosynthetic Reinforced Soil Retaining Walls

Vieira¹

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Indraratna et al [12] discussed the beneficial effects of geogrids on the strength characteristics were evaluated using large-scale direct shear tests. Latha and Santhanakumar [13] examined the stronger and weaker polypropylene biaxial geogrid reinforcements with rigid and modular concrete block facing systems on shaking table. Nearly 60% of vertical deformation decrement was reported with using 3 layers of geogrid usage.…”

Section: Previous Studiesmentioning

confidence: 99%

Geotekstil, Geogrid ve Çelik Şerit Donatılı Şevlerde Modelleme Çalışması

Evirgen¹,

Tuncan²,

Tuncan³

2017

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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Changing the natural conditions of soil creates unexpected stress increments in slope stability projects, which are required high amount of soil excavation near the highways and railways or braced cut systems. Some safety problems can occur during this application under different loading cases. In addition, slope stability design requires economical solutions. Slope-supporting structures should be designed with most effective solution according to these signified requirements. A slope stability problem considering deep excavations in front of the reinforced soils are studied within this study in all its parts, after an extensive review of the literature. Geotextile (GT), geogrid (GG) and steel strip (SS) reinforcements are used to increase the stability conditions of slope during both experimental procedure and modelling process with Plaxis software. Each reinforcement type provided the bearing capacity enhancement and showed that unique displacement behavior. Therefore, most effective reinforcement member can be chosen in design procedure and construction phase in the site according to the bearing capacity and displacement requirements according to presented values.

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“…Seismic response of geosynthetic reinforced soil walls is well documented in literature [18][19][20][21][22][23][24][25][26][27][28][29]. Research on seismic response of geocell retaining walls is very limited.…”

Section: Introductionmentioning

confidence: 99%

Seismic Response of Geocell Retaining Walls Through Shaking Table Tests

Latha

Manju

2016

Int. J. of Geosynth. and Ground Eng.

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Performance of geocell retaining walls under seismic shaking conditions is studied in this paper. Shaking table tests on geocell retaining walls subjected to ground shaking conditions of different accelerations and frequencies are discussed. Retaining wall models of 600 mm height were constructed using a sand backfill with layers of geocells stacked one above the other to form the facing. Geocells in these tests were constructed using planar geonets by stitching them into a honeycomb network. Material used for making geocells, number of geocells in each layer, slope of the facing and infill material of geocells were varied in different tests. These geocell retaining walls were subjected to 100 cycles of sinusoidal base shaking at accelerations ranging between 0.2 and 0.3 g and frequency range of 1-7 Hz. Response of retaining walls was monitored in terms of acceleration amplifications and wall deformations at different elevations. It was observed that all geocell retaining walls were extremely strong to seismic shaking. Acceleration amplifications and displacements increased with increase in base acceleration or shaking frequency. It was observed that the detrimental effect of increasing ground motion parameters on the wall response was more significant than the beneficial effect of improvement in geocell parameters.

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Seismic response of reduced-scale modular block and rigid faced reinforced walls through shaking table tests

Cited by 61 publications

References 28 publications

Review of Seismic Performance of Geosynthetic Reinforced Soil Retaining Walls

Review of Seismic Performance of Geosynthetic Reinforced Soil Retaining Walls

Geotekstil, Geogrid ve Çelik Şerit Donatılı Şevlerde Modelleme Çalışması

Seismic Response of Geocell Retaining Walls Through Shaking Table Tests

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