CONSTRUCTION Flashcards
it may refer to the contractual arrangement under which
a firm supplies construction management services to an owner.
Construction Management
includes such activities as specification development, process control, product acceptance, laboratory and technician
certification, training, and communication.
Quality management
is primarily concerned with the process control function.
Quality control (QC)
is the process of moving soil or rock from one location to another and processing it so that it meets construction requirements of
location, elevation, density, moisture
content, and so on.
Earthmoving
is the ability of a soil to support the weight of vehicles under repeated traffic.
Trafficabilityy
is a measure of the difficulty in excavating and loading a soil.
Loadability
is the bucket volume contained within the bucket when following the outline of the bucket sides.
Plate line capacity
is the bucket capacity when the load is struck off flush with the bucket sides.
Struck capacity
assumes a level of material flush with the lowest edge of the bucket.
Water line capacity
is the maximum volume that can be placed in the bucket without spillage based on a specified angle of repose for the material in the bucket.
Heaped volume
is a very versatile machine that has the longest reach for digging and dumping of any member of the crane shovel family.
dragline
are primarily used for lifting,
lowering, and transporting loads. They move loads horizontally by swinging or traveling.
Cranes
represents that component of vehicle weight which acts parallel to an inclined surface.
Grade resistance
represents that component of vehicle weight which acts parallel to an inclined surface.
Grade resistance
is primarily due to tire flexing and penetration of the travel surface
Rolling resistance
represents those components
of cycle time other than travel time.
Fixed time
represents the travel
time required for a unit to haul
material to the unloading site and
return.
Variable time
The process of giving natural soils
enough abrasive resistance and shear
strength to accommodate traffic or
design loads is called
ground
modification or soil stabilization.
is the process of increasing the density of a soil by mechanically forcing the soil particles closer together, thereby expelling air from the void spaces in the soil.
Compaction
involves dropping a heavy weight from a crane onto the ground surface to achieve soil densification.
Dynamic compaction or deep compaction
is the process of densifying cohesionless soils by inserting a vibratory probe into the soil.
Vibratory compaction also called
vibroflotation and vibrocompaction
or placing additional weight on the soil surface has long been used to densify cohesive soils.
Surcharging
refers to the improvement of the engineering properties of a soil by use of physical or chemical admixtures.
Soil Stabilization
is the process of bringing earthwork to the desired shape and elevation (or grade).
Grading