A 20m x 20m grid is set out over a T shaped section. Levels are taken on teh grid, and RLs calculated, as below: 425.2 424.7 424.7 423.4 425.3 423.8 424.4 425.1 AIE WAG MO ALA 424.3 424.7 424.2 423.8 If the area is then to be excavated to RL 421.0m, calculate the volume of cut using the grid levelling formula. Volume of cut:

Q2). Calculate volume of cut and fill, the elevation of natural ground shown on all nodes and design elevation is equal to 103 m, all dimension and elevations are in meter. hi h, 101 102.5 W₂ 104.2 ha 108.10 98.45 412 100.5 Wy -10 m 102.5 hey 105.7 12 97.35 99.80 101, hs 104 hi 10 m ha 104 106.5 hi Thi

6. The distribution of 12 spot heights with a regular 15m spacing covering a square area which is to be graded to form a horizontal plane with the height of 15m. Determine the volume to be excavated from the site. The spot height data are as follows: Stations Reduced level (m) 1 15.06 2 16.52 3 16.23 4 15.55 5 16.05 6. 16.22 7 15.45 15.23 16.45 10 15.99 11 16.20 12 16.35