Embankments on soft ground: an overview

Abhishek, S V and M R, Madhav (2013) Embankments on soft ground: an overview. In: Foundation and Soft Ground Engineering Conference Thu Dau Mot University ICTDMU - 1, 5-6, June 2013, Binh Duong.

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Abstract

Thick deposits of soft ground such as soft marine and estuarine clay are widespread throughout the world especially along deltas and coastal regions. Such soils possess poor geotechnical properties such as high natural moisture content (close to liquid limit), high compressibility & low shear strength. Embankments on such soft ground commonly adopted for the construction of highways, rai l- ways and airport runways are often affected by edge stability and long term settlement. The earliest meth od or technique employed for stable construction of embankments on soft ground was the use of ve r- tical drains combined with stage construction. However, with growing demand for rapid construction and associated difficulty in meeting the project deadline, column - supported embankments have emerged as an appropriate technical solution. In addition, geosynthetics in the form of basal reinforcement are exte n- sively being used at present for embankments on soft ground, to improve the bearing capacity, reduce di f- ferential settlement and prevent slope instability. A broad over - view of embankments on soft ground is presented in the present paper. The review is complemented by six well documented case histories of embankments constructed over soft ground using diff erent geotechnical techniques. The case histories presented could help the geotechnical community to understand and evaluate the benefits of the tec h- niques for their adoption for the construction of embankments over soft ground.

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IITH Creators:
IITH CreatorsORCiD
M R, MadhavUNSPECIFIED
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Embankments , soft ground, pre - fabricated vertical drains, stone columns, deep cement mixed piles, basal rei n forcement, soil arching
Subjects: Civil Engineering > Soil Structure Interaction
Divisions: Department of Civil Engineering
Depositing User: Team Library
Date Deposited: 27 Sep 2016 06:11
Last Modified: 27 Sep 2016 06:12
URI: http://raiith.iith.ac.in/id/eprint/2779
Publisher URL:
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