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Improvement of Railway Embankment Formation by Laying Geogrid Beneath Ballast Bed—A Case Study
The Railway Track is usually laid on stable formation as it is a permanent way and must satisfactorily perform irrespective of weather conditions and time cycle of the year. However, Indian Railway has got small portion of track which is not having stable formation. South Central Railway has got about 1200 km of Railway embankment which is laid on unstable formation mainly on soil not conforming to specifications primarily having fines exceeding specified limits. Such weak formation adversely affects speed potential of routes resulting in loss of travel time. Various methods tried for improvement of formation are as follows: Widening of embankment top along with flattening of slope, Laying of Geogrid, Laying of Geogrid and Geotextile combined, and Replacement of one-meter topsoil of embankment by blanketing material. The paper deals with case of improvement of Railway embankment formation on Madhira–Kondapalli section of Kazipet–Vijayawada Section on S. C. Railway by laying Geogrid beneath ballast bed using Ballast Cleaning Machine during planned overhauling of Track ballast. Results are encouraging as quantum of periodic input required for track maintenance has gone down and riding quality over these stretches has improved.
Improvement of Railway Embankment Formation by Laying Geogrid Beneath Ballast Bed—A Case Study
The Railway Track is usually laid on stable formation as it is a permanent way and must satisfactorily perform irrespective of weather conditions and time cycle of the year. However, Indian Railway has got small portion of track which is not having stable formation. South Central Railway has got about 1200 km of Railway embankment which is laid on unstable formation mainly on soil not conforming to specifications primarily having fines exceeding specified limits. Such weak formation adversely affects speed potential of routes resulting in loss of travel time. Various methods tried for improvement of formation are as follows: Widening of embankment top along with flattening of slope, Laying of Geogrid, Laying of Geogrid and Geotextile combined, and Replacement of one-meter topsoil of embankment by blanketing material. The paper deals with case of improvement of Railway embankment formation on Madhira–Kondapalli section of Kazipet–Vijayawada Section on S. C. Railway by laying Geogrid beneath ballast bed using Ballast Cleaning Machine during planned overhauling of Track ballast. Results are encouraging as quantum of periodic input required for track maintenance has gone down and riding quality over these stretches has improved.
Improvement of Railway Embankment Formation by Laying Geogrid Beneath Ballast Bed—A Case Study
Lecture Notes in Civil Engineering
Muthukkumaran, Kasinathan (editor) / Rathod, Deendayal (editor) / Sujatha, Evangelin Ramani (editor) / Muthukumar, M. (editor) / Jha, Akshay Kumar (author)
Indian Geotechnical Conference ; 2021 ; Trichy, India
2022-12-11
17 pages
Article/Chapter (Book)
Electronic Resource
English
Geogrid Reinforced Railway Embankment Case History
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