The trench shown in the figure below needs to be excavated to relocate a portion of the drainage system of a highway int

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The Trench Shown In The Figure Below Needs To Be Excavated To Relocate A Portion Of The Drainage System Of A Highway Int 1 (41.08 KiB) Viewed 12 times

The trench shown in the figure below needs to be excavated to relocate a portion of the drainage system of a highway interchange project, and connect it to the existing system. The soil is moist common earth. A medium size backhoe, with a maximum depth of cut of 20 feet and average swing angle of 90° will be used. The heaped bucket capacity is 1.5 cy, and the job efficiency is 80%. a. Compute the base (B) and height (H) of the spoil bank along the trench produced by the excavation b. How many hours will it take an operator to complete the trench excavation? You must show all your work A B А 200 Ft B B 250 Ft 15 ft Plan View 21 6 ft is 10 ft 4f7 Section A-A 7 ft Section B-B