^6 Rules and Tables adapted 



H D o, parallel to base A c, and D K perpendicular to H L. 

 Now let \ denote half base or b c. 



h the height B h at centre stake. 

 m : 1 rate of inclination of slopes. 

 S angle of inclination of sidelong ground. 

 X the required horizontal side distance^ or c d 

 Then d k = ^ tang S 



m 



^ ^ a m — X 



X tang 0 = ^ — ■ 



m 



X = \ h m (~T~T~r — F"""^ 



I \ 1 -f- tang 0, m / 



In Fig. III.^ in which the sidelong inclination diverges 

 from the centre stake in reference to the plane of the base, 

 we obtain, in a similar manner, 



• Side distance or :r = ^ + h m 1 ^ ) 



^ y 1 • — ■ tang 0. m / 



In Fig. ly. let the profile of the sidelong ground cross 

 the half base, and occasion cutting and embankment on the 

 same side of the centre stake. 

 Here dk + hl = hl tang 



D K = H L tang S — K L = X. tang ^ — h 



C K iv — h 



D K = 



X — h 



X, tang S — h 



X = b — hm (- -i — — ^ 



\1 — tang 5. m/ 



1 



In Table No. I. I have given values of i _ tang 5 m "^^^^ 

 more ordinary slopes, and in Table No. II. similar values of 



1 



1 -j tang 5. m 



