Borings at a site for a road pavement show a waterbearing
stratum of coarse-grained soil below an 8-mthick
deposit of a mixture of sand, silt, and clay. The waterbearing
stratum below the mixture of sand, silt, and clay
will create an artesian condition. The excess head is 1 m.
One preliminary design proposal is to insert two trenches,
as shown in Figure P14.10 on the next page, to reduce the
excess head. Draw the fl ownet and determine the fl ow
rate into each of the trenches if k 5 kz 5 1 3 1025 cm/s.