A sheet pile wall has been installed partially through a silty sand layer. Assume the sheet pile is 12m long and penetrates 6m into the silty sand layer of thickness 12m. For this condition a) Draw the flow net using 3 (max 4) flow channels. The flow net should be completely symmetrical about the bottom of the sheet pile b) If the water height on the upstream side is 5m and on the downstream side 1m, compute the amount of water flowing under the sheet pile per meter of wall if the coefficient of permeability is 3.1x10-4 cm/sec. c) Compute the maximum hydraulic gradient at the downstream side of the sheet pile

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.