Question

0nts.) An 18-inch wide x 3-ft deep trench is dug in the ground and a water line with a 3.5-inches outsi surrounds the pipe to a height of 2.5-inches above the water line. The length of the trench is 500-ft. How much bedding is needed? eter is placed in the trench. The water line is placed on 6-inches of bedding, and bedding Use one of the figures below to best use for problem #14.

Answer 1

Trench d ross-Section18 i'nchawide X 3ft deep water line outside diamelev 3.5inches depih ab bedding above usater level- as inches To determine, How much bedding is needed? twe need to determine Dg ,so we uwill be usina depth ob bedd ing below pi pe- 6 inches na above water level- eng th ob trench-50o ft falculah on : lalculatoni. , To determine the regu įvern en+% bedding second diagram 5 nche D 3.5inches 6inchs as, the iven condition is that at least a.5inche beeding should be oluvays there above water lewe) water pipe, thus hor worst case, means when

the pipe rnbull, 8 comes out to be, Dea5 3.56 inches so, volume ob bedding reguived So, Volume o ( oot - 1 inches) 2. Veo 2273 235 ft os. (1 ft, 0 037 yds) 3862 Yd