USES—EXPERIENCE FROM THE PILOT PROJECTS

The major application of JGT so far has been in the areas of low volume roads, riverbank erosion control and management of slope, including hill slope. Sporadically JGT has been used in Management of OB dumps in open cast mines. Though JGT has very bright prospects in geo-environmental applications such as management of MSW in municipalities and PFA heaps in thermal power plants, its potential in this sector still remains unexplored. Another prominent area is stabilization of soft soil (comprising usually marine clay encountered in coastal areas) by installing PVJD (Prefabricated Vertical Jute Drain). Though the product has been used overseas e.g. Singapore, Japan and now in Australia, consultants in India have not shown interest to try it so far. Initial results for the work with PVJD in NSW, Australia are highly encouraging according to the University of Wollongong, Australia monitoring and investigating its performance.

In case of low volume roads, the CBR increment in all the applications has been at least 1.5 under different soil conditions after a lapse of a little over one season. In riverbank erosion control there has not been any case of failure/distress manifestation. For management of all types of slopes JGT has proved to be the ideal material. In fact JGT outscores all other geotextiles in this application because of its hydrophilic characteristic, mulching property and ability to reduce the velocity of surface run-off (due to its thickness).