Loading
Notes
Study Reminders
Support
Text Version

Excavation Equipment - Lesson Summary

Set your study reminders

We will email you at these times to remind you to study.
  • Monday

    -

    7am

    +

    Tuesday

    -

    7am

    +

    Wednesday

    -

    7am

    +

    Thursday

    -

    7am

    +

    Friday

    -

    7am

    +

    Saturday

    -

    7am

    +

    Sunday

    -

    7am

    +

Excavation Equipment - Lesson Summary
Articulated wheel loaders are hinged between the front and rear axles to provide greater maneuverability and this allows an angle up to 40 degrees.The full turn static tipping load is the loaded weight which will lift the rear wheel off the ground when the machine is in a static condition and fully articulated.The optimum height of cut refers to the vertical distance that permits the bucket to obtain a full load without overcrowding or under crowding the bucket.The haul unit exchange refers to the total time required for a loaded truck to clear its loading position and for the next empty truck to be positioned for loading.Scrapers are capable of excavating, hauling and dumping material over medium to long haul distances.When using push tractors, the number of pushers must be matched with the number of scrappers available at a given time.A well-maintained road allows a scraper to travel faster and it reduces the cost of maintenance and repair.Load bearing piles are used to transmit the load through the weak soil into the soil stratum that is capable of supporting loads.A lighter ram and higher striking velocity may be suitable for driving light to medium weight piles into soils having normal frictional resistance.Diesel hammers perform well in cohesive soils as more energy is delivered to the pile when the resistance to the driving increases.Vibratory pile drivers are silent and they are effective when piles are driven into water-saturated non-cohesive soils and loose to medium sand and gravels.