The construction t
The construction technique
The site must first be prepared by removing trees, shrubs, etc. and
then be levelled.
Before the granular sub- base is placed the formation
width is covered with geotextile .A further requirement is that the geotextile
should be anchored on each side of the road. The bound length to give this
anchorage is around 1.0-1.5 m. This can be achieved by extending the geotextile
beyond the required running width of the road, as illustrated in figure (I.12a)
or by providing an equivalent bond length by burring the fabric in shallow
trenches figure (I.12 b) or by warping around figure (I.12 c) (18)
