Indian Institute of Technology Palakkad&nbsp;(IIT Palakkad or IIT PKD) is a public autonomous&nbsp;engineering&nbsp;and&nbsp;research&nbsp;institute located in&nbsp;Palakkad,&nbsp;Kerala. It was&nbsp;one of the five new&nbsp;IITs&nbsp;proposed in the&nbsp;2014 Union budget of India. The campus was inaugurated on 3 August 2015. The institute has 94 faculty, 978 students, and 63 non-teaching staffs.

IT Palakkad currently offers four-year Bachelor of Technology (B.Tech) and two years MS programmes in 8 different engineering disciplines including&nbsp;Computer Science, Electrical, Mechanical, Civil among others.

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IIT Palakkad

The main objective of this paper is to examine the influence of discrete and randomly distributed geofiber reinforcement on the integrity of clay-based landfill covers subjected to differential settlements in a geotechnical centrifuge. A series of centrifuge tests was performed on model clay-based landfill covers with and without geofiber reinforcement at 40 gravities. A hydraulic-based differential settlement simulator was used to induce continuous differential settlements with a distortion level up to 0.125. The type and moist-compacted conditions of the soil barrier and fiber content were held constant, and the thickness of the soil barrier and the fiber type are varied. The performance of the soil barrier with and without geofiber reinforcement having an overburden pressure equivalent to that of landfill covers was monitored by measuring water breakthrough at the onset of differential settlement. With an increase in the thickness of the geofiber-reinforced soil barrier, and with the provision of an overburden equivalent to that of landfill cover, the integrity of the geofiber-reinforced soil barrier was found to be retained, even after inducing a distortion level of 0.125. Analysis and interpretation of the test results indicate the significant potential for geofiber reinforcement to decrease and to retard soil crack potential in a discrete and randomly distributed soil barrier reinforced with geofibers, while retaining its hydraulic performance. © 2011 Thomas Telford Ltd.

World University root node

Department of Civil Engineering

Geosynthetics International

Influence of randomly distributed geofibers on the integrity of clay-based landfill covers: A centrifuge study

Indian geotechnical conference

Experimental Studies on the Response of a Clay Barrier of Landfill Covers To Differential Settlements

The main objective of the present study is to examine the behavior of model soil barriers of landfill covers at the onset of differential settlements with and without geofiber reinforcement in a geotechnical centrifuge. A motor-based differential settlement simulator was used for inducing continuous differential settlements to the moist-compacted model soil barrier of 25 mm thickness without any overburden during flight at 40 gravities. Polyester fibers having 90 mm length and a dosage of 0.5% dry weight of soil barrier material were used as discrete and random reinforcement inclusions. The performance of soil barriers with and without geofiber reinforcement was monitored by measuring water breakthrough and in restraining cracking at the onset of differential settlements. It was found that a discrete and randomly distributed geofiber reinforced soil barrier without any overburden was found to be marginally superior in restraining cracking and sustained large distortion level at the onset of water breakthrough than un-reinforced soil barriers. © 2011 ASCE.