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Load-Carrying Capacity of Strip Footing Resting on Sand Slopes Retained by Novel Construction Waste-Filled Geotextile Bags
https://orcid.org/http://orcid.org/0000-0002-7334-0095
With increasing population and need for socioeconomic development, there is a huge demand for the construction of new civil engineering infrastructures that have put a heavy burden on the available natural resources at the global level. Furthermore, demolition or restoration of existing built environment results in the generation of massive amounts of Construction and Demolition (C&D) waste, which remains unused till proper treatment and disposal in landfills. Therefore, with an aim to relieve the burden on natural resources in combination with the adoption of C&D waste as a resourceful material, the present study was conducted. In this paper, the response of C&D waste-filled geotextile bags (termed “geobags”), which were used as flexible retaining walls, for slope protection, in the presence of a surface strip footing placed over the cohesionless backfill sand soil, was studied. To do so, the model slope with model strip footing placed over it was experimented. Slope angles (1V:0.25H and 1V:0.50H), each prepared in two layers with a combination of different relative density (RD) values of backfill soil (40% upper layer and 80% lower layer as well as 80% RD for both layers), and inclusion of geosynthetics, i.e., geogrid (single layer) and geogrid along with polypropylene fibres (0.50% by weight)) were kept as the variable parameters for experimentation. From the experimental results, it was noted that geobags deformed as a flexible retaining wall in an oval shape, with maximum deformation noted at a depth of 1/2nd to 1/3rd of the wall height from the top. Also, the Relative Density (RD) of backfill played a crucial role in improving the load-carrying capacity of the backfill soil. Slope angle is another important factor, and it was observed that an inclined slope face, rather than vertical, improves the load-carrying capacity while accommodating more wall deformation. Additionally, reinforcing the backfill soil with geosynthetics and PP fibers makes sure that the flexible retaining wall acts as a Flexible Reinforced Earth (FRE) Wall, and it improves the load-carrying capacity of backfill up to 3.75 times along with a 50–60% (approximately) reduction in the horizontal deformation of the wall.
Load-Carrying Capacity of Strip Footing Resting on Sand Slopes Retained by Novel Construction Waste-Filled Geotextile Bags
https://orcid.org/http://orcid.org/0000-0002-7334-0095
With increasing population and need for socioeconomic development, there is a huge demand for the construction of new civil engineering infrastructures that have put a heavy burden on the available natural resources at the global level. Furthermore, demolition or restoration of existing built environment results in the generation of massive amounts of Construction and Demolition (C&D) waste, which remains unused till proper treatment and disposal in landfills. Therefore, with an aim to relieve the burden on natural resources in combination with the adoption of C&D waste as a resourceful material, the present study was conducted. In this paper, the response of C&D waste-filled geotextile bags (termed “geobags”), which were used as flexible retaining walls, for slope protection, in the presence of a surface strip footing placed over the cohesionless backfill sand soil, was studied. To do so, the model slope with model strip footing placed over it was experimented. Slope angles (1V:0.25H and 1V:0.50H), each prepared in two layers with a combination of different relative density (RD) values of backfill soil (40% upper layer and 80% lower layer as well as 80% RD for both layers), and inclusion of geosynthetics, i.e., geogrid (single layer) and geogrid along with polypropylene fibres (0.50% by weight)) were kept as the variable parameters for experimentation. From the experimental results, it was noted that geobags deformed as a flexible retaining wall in an oval shape, with maximum deformation noted at a depth of 1/2nd to 1/3rd of the wall height from the top. Also, the Relative Density (RD) of backfill played a crucial role in improving the load-carrying capacity of the backfill soil. Slope angle is another important factor, and it was observed that an inclined slope face, rather than vertical, improves the load-carrying capacity while accommodating more wall deformation. Additionally, reinforcing the backfill soil with geosynthetics and PP fibers makes sure that the flexible retaining wall acts as a Flexible Reinforced Earth (FRE) Wall, and it improves the load-carrying capacity of backfill up to 3.75 times along with a 50–60% (approximately) reduction in the horizontal deformation of the wall.
Load-Carrying Capacity of Strip Footing Resting on Sand Slopes Retained by Novel Construction Waste-Filled Geotextile Bags
https://orcid.org/http://orcid.org/0000-0002-7334-0095
With increasing population and need for socioeconomic development, there is a huge demand for the construction of new civil engineering infrastructures that have put a heavy burden on the available natural resources at the global level. Furthermore, demolition or restoration of existing built environment results in the generation of massive amounts of Construction and Demolition (C&D) waste, which remains unused till proper treatment and disposal in landfills. Therefore, with an aim to relieve the burden on natural resources in combination with the adoption of C&D waste as a resourceful material, the present study was conducted. In this paper, the response of C&D waste-filled geotextile bags (termed “geobags”), which were used as flexible retaining walls, for slope protection, in the presence of a surface strip footing placed over the cohesionless backfill sand soil, was studied. To do so, the model slope with model strip footing placed over it was experimented. Slope angles (1V:0.25H and 1V:0.50H), each prepared in two layers with a combination of different relative density (RD) values of backfill soil (40% upper layer and 80% lower layer as well as 80% RD for both layers), and inclusion of geosynthetics, i.e., geogrid (single layer) and geogrid along with polypropylene fibres (0.50% by weight)) were kept as the variable parameters for experimentation. From the experimental results, it was noted that geobags deformed as a flexible retaining wall in an oval shape, with maximum deformation noted at a depth of 1/2nd to 1/3rd of the wall height from the top. Also, the Relative Density (RD) of backfill played a crucial role in improving the load-carrying capacity of the backfill soil. Slope angle is another important factor, and it was observed that an inclined slope face, rather than vertical, improves the load-carrying capacity while accommodating more wall deformation. Additionally, reinforcing the backfill soil with geosynthetics and PP fibers makes sure that the flexible retaining wall acts as a Flexible Reinforced Earth (FRE) Wall, and it improves the load-carrying capacity of backfill up to 3.75 times along with a 50–60% (approximately) reduction in the horizontal deformation of the wall.
Load-Carrying Capacity of Strip Footing Resting on Sand Slopes Retained by Novel Construction Waste-Filled Geotextile Bags
Int. J. of Geosynth. and Ground Eng.
Sharma, Vaibhav (author) / Gurjar, Rameshwar (author) / Kumar, Arvind (author) / Srivastava, Amit (author)
2024-12-01
Article (Journal)
Electronic Resource
English
Bearing capacity of strip footing resting on reinforced sand subgrades
| British Library Online Contents | 1995
Bearing capacity of strip footing resting on reinforced sand subgrades
| Online Contents | 1995