RemedialIGC 2009 Measures, Guntur, INDIAfor Lowering Ground Water Table at Pantnagar Airport REMEDIAL MEASURES FOR LOWERING GROUND WATER TABLE AT PANTNAGAR AIRPORT U.K. Guru Vittal Scientist ‘F’, GTE Division, Central Road Research Institute, New Delhi–110 020, India. E-mail:
[email protected] P.S. Prasad Scientist ‘C’, GTE Division, Central Road Research Institute, New Delhi–110 020, India. E-mail:
[email protected] Sudhir Mathur Scientist ‘G’ & Head, GTE Division, Central Road Research Institute, New Delhi–110 020, India. E-mail:
[email protected] ABSTRACT: Waterlogged areas are considered to be those where the level of sub-soil water table or standing water is such that, for prolonged periods the subgrade immediately below the pavement is well within the capillary fringe of the water table. As a result of migration of water by capillarity, soil immediately below the pavement gets saturated and this leads to a gradual loss of bearing capacity, which may eventually lead to pavement failure. Different techniques like providing sub-surface drains, introducing capillary cut-off, raising embankment height, etc are adopted when such conditions are encountered in the field. Pantnagar airport in Uttarakhand state is situated close to industrial layouts at Rudrapur and is a gateway to Kumaon region, especially hill resort of Nainital. Airports Authority of India (AAI) has taken up several works to improve the existing infrastructure at Pantnagar airport. Construction of perimeter road all along the airport boundary wall and extension of runway are among them. The entire area of airport is on plain ground sloping gently from East to West and also from North to South.