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Utilization of Geotextile Fabric and Permeable Concrete to Prevent Coastal Erosion

Conference paper
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Part of the Sustainable Civil Infrastructures book series (SUCI)

Abstract

In India, the long coastline of South India is deeply connected with the culture, life and traditions of the country. The tourism base of India, especially Kerala, is dependent on the backbone of its exquisite beaches and lush back-waters. Beach conservation, management and development works are executed to aid tourism to a large extent. Nowadays these beaches possess a potential challenge of erosion due to rising and falling of sea levels because global warming and land encroachment towards the beachside. This study focuses on the study of erosion that occurs due to the above-mentioned problems and suggests a novel method to overcome it. The present structures which help in preventing erosion are seawalls, stone revetments, tetra pods etc. All these methods prove to be effective in the short run but the durability and acceptability of the same are not satisfactory. The novel method introduced in this study uses a highly porous geotextile layer laid over a beach area, over which pervious concrete blocks are laid. Water can pass through the revetment easily, while holding the geotextile and underlying soil in place. The blocks are laid in such a way that the waves do not have a direct impact on it, but enter tangentially, thereby reducing the impact and surface drag. After observing the behavior of the revetment exposed to sea waves, it was concluded that laying and anchoring the porous concrete slabs on poly-filter can be an effective armor and a feasible solution for beach protection.

Keywords

Beach erosion Geosynthetics Pervious concrete UFGGBS Kerala Wave action 

Notes

Acknowledgments

We would like to express our gratitude to the Water Resources and Irrigation Division of Government of Kerala and Amrita Vishwa Vidyapeetham, India for funding the project and for providing the necessary facilities required for the successful completion of the study. We express our heartfelt thanks to Dr. M. C. Dathan, Scientific Advisor to the Chief Minister of Kerala, and Dr. Sasangan Ramanathan, Dean, Amrita School of Engineering for their constant support and encouragement. We would also like to thank Dr. K. M. Mini, Chairperson, and Mr. Srinivasan K., Department of Civil Engineering, Amrita School of Engineering, for their support and guidance.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Civil Engineering, Amrita School of EngineeringAmrita Vishwa VidyapeethamCoimbatoreIndia

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