Foundation Flashcards
Backfill
Soil material placed back into a space that has been excavated such as against structures or in pipe trenchs
Underpinning
Piles, piers, walls, sheet piling or other supports added to or replacing foundations u set an existing structure to preserve the integrity of structure or increase its load capacity
A Mandrel
A core that is inserted into a closed-end thin-shell tubular pile for driving. After installation the mandrel is contracted and withdrawn. H
A pile
A structural column of timber, steel, concrete, etc. installed into the ground to resist or to transfer vertical, horizontal or combination loads imposed upon it
A steel pipe pile
A pipe in any wall thickness or diameter. It may be driven closed end or open end. Also call a tube pile
A steel H pile
A rolled steel section with web and flanges nearly the same thickness. The width and depth are approximately equal.
A pile hammer
General term for a machine which drives piling by impact or vibration. A powe source may be mechanical, air, steam, diesel or hydraulic.
A timber pile
A cut tree, usually debarked, and pressure treated with creosote or other preservative, usually driven small end down. Probably the earliest form of a pile
An end bearing pile
A pile that supports the major portion of the load placed upon it by end or tip bearing on a firm stratum existing at some depth below the ground surface.
A friction pile
A pile which derives most or all of its resistance to load by the friction developed between the side surface of the pile and the soils through which it is driven.
A Franki Pile
A proprietary pipe utilizing a compacted concrete expanded base. A pressure injected footing. (PIF)
A precast pile
A concrete pile either reinforced or prestressed which is manufactured in a construction plant or on the site and having been properly cured is handled and driven like a steel or timber pile.
Slump test
Measures the consistency of a concrete batch to see how easily the concrete will flow. Concrete with a slump that is low is very stiff, dry, and hard to work with.
