A hydraulic-excavator backhoe is excavating the basement for a building. Heaped bucket capacity is 1.10 mº. The material is common with a bucket fill factor of 0.90. Job efficiency is 53 min/h. Average depth of cut is 2.7 m. Maximum depth of cut is 9.0 m and average swing is 75 degrees. Estimate the hourly production in bank measure.

A hydraulic-excavator backhoe is excavating the basement for a building. Heaped bucket capacity is 1.10 mº. The material is common with a bucket fill factor of 0.90. Job efficiency is 53 min/h. Average depth of cut is 2.7 m. Maximum depth of cut is 9.0 m and average swing is 75 degrees. Estimate the hourly production in bank measure.

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter14: Sheet-pile Walls

Section: Chapter Questions

Problem 14.4P

See similar textbooks

Similar questions

A limestone mine has the following equipment at its primary production face: Excavator: a 15 yd3 (11.5 m3) front-end loader with 40 sec cycle time Trucks: five 100 ton (90 tonne) trucks Material: average blasted rock with medium-hard digging conditions Working conditions: average Haulage cycle time: 20.0 min (a) What is the sustained production rate of the system in tons/hr, assuming 60 min of production per hour'? (b) Which equipment (loader or trucks) governs? (c) What improvements would you recommend to increase mine production without changing equipment?
A rectangular deck scow 35.0 m long, 5.60 m wide, and 3.50 m high has a draft of 1.30 m when light ad a draft of 2.95 m when loaded. The bottom length of the scow is 24.0 m. The waterline is 30.0 m long when the scow is loaded with rocks and 25.50m long when light. If sea water weighs 1026 kg/cum and the loaded dredged material weighs 3208 kg/cum, determine the following: a. volume of water displaced when unloaded of light b. displacement loaded c. weight of the water displaced by the load d. volume of the loaded rock
for Shovel Excavator Soil Type = dry clay -Rotation angle = 75° -State of work = average - State of management = average - Excavation height = 3.05 m Q:What is the efficency per hour? (Swelling)
5 - A rectangular deck scow 31.15 m long, 6.15 m wide and 3.67 m high has a draft of 1.22 m when light and a draft of 3.06 m when loaded. The bottom length of the scow is 23.18 m. The waterline is 29.26m long when the scow is loaded with rocks and 25.50 m long when light. If the sea water weighs 1028 kg/cum and the loaded dredged material weighs 3208 kg/cum, determine the volume of the loaded rock.
A flow net for flow around a single row of sheet piles in a permeable soil layer is shown in the Figure below. Given that kx= kz = k= 5.5 x 10-3 cm/sec, H1 = 6.5 m and H2 = 2.3 m determine: i. How high (above the ground surface) the water will rise if piezometers are placed at points a and b ii. The total rate of seepage through the permeable layer per unit length iii. The approximate average hydraulic gradient at c
The sheet pile is driven in the Cebu South reclamation area and the area to one side is pumped down as shown in the flow net. The permeability of the sand is 0.001 m/s. below the elevation of 20 m us an impermeable rock layer. Determine the flow per unit length.How high (above the ground surface) the water will rise if a piezometer will be placed at A?
A flownet for flow around a single row of sheet piles in a permeable soil layer is shown in Figure 1 below. Given the hydraulic conductivity is 5 x 10-3 cm/sec. Determine:
A rectangular deck scow 23.50 m long, 7.10 m wide and 3.23 m high has a draft of 1.22 mwhen light and a draft of 3.05 m when loaded. The bottom length of the scow is 13.15 m. Thewaterline is 21.26 m long when the scow is loaded with rocks and 18.69 m long when light. Ifsea water weighs 1026kg/cubic meters and the loaded dredged material weighs 3208kg/cubicmeters, determine the volume of the loaded rock."
A hydraulic excavator with a 2 cubic yard heaped capacity bucket is excavating in common earth. The depth of the excavation is 8 feet. The excavator has a maximum rated digging depth of 16 feet. The excavated material will be positioned so that the swing angle is 75 degrees. The job efficiency is 55 minutes per hour. Find the expected production per hour.
A flow net for flow around a single row of sheet piles in a permeable soil layer is shown in Figure below with a scale as shown. Given that kx = kz=k = 4 x 10-3 cm/sec, determine How high (above the ground surface) the water will rise if piezometers are placed at points a and b The total rate of seepage through the permeable layer per unit length The approximate average hydraulic gradient at c factor of safety against piping x=1.6 y=2.8
At a well the ground elevation is 1510.0 (m asl), the depth to the water is 5.0 (m) and the lithology is 0-10 m sand; 10-12 m grey clay. What is the hydraulic head in m asl and the hydraulic gradient?
Due in 1 hr Please show complete figure and solution thanks!! Question: A rectangular scow 9.0m wide and 15m long has a draft in fresh water 2.45m. Its center of gravity is located 4.57m above its base. If a load 500kn is place on the right hand side of the scow such that the side will just be submerge. Determine a.) Height of the scow.