Title: Ground Improvement of Soft Soil Using Bamboo as Flexible Pile with Stabilized Lime-Soil Pile-Cap Encapsulated by Geogrid and Geotextile
Abstract: The recent construction of the Agartala flyover encountered soft clay at its two approaches, where two embankments are to be gradually aligned to the existing road level. The type of clay layers exhibits poor strength and high settlement. The embankment superstructure was designed to be constructed as a vertical Reinforced Earth (RE) wall for a maximum height of around 6.0 m using facing panel walls made up of RC precast panels attached by high adherence (HA) reinforcing steel plates filled up with suitable sand. This structured embankment imposes high pressure on the foundation soil. There was an absence of a suitable, locally available agency with established ground improvement technologies. Also, the available construction time was very less. An innovative combination of four techniques is well-thought-out for by introducing sand-lime vertical drain/column, bamboo as a flexible pile, geogrid, and geotextile encased lime-soil mix as a flexible pile-cap supported by concrete block wall at both sides of the ground improvement channel. The design methodology, which is proposed and applied, has been verified by the load test results on the field models. The results are further analyzed and compared with the design, and accordingly, suitable modifications were applied wherever applicable. The experimental results from the load tests confirmed the efficacy of this proposed new design technique.
Publication Year: 2021
Publication Date: 2021-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 1
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