HC-Lecture69-Pumps

HC-Lecture69-Pumps - Heavy Construction Heavy Construction...

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Unformatted text preview: Heavy Construction Heavy Construction Lecture #69 Lecture #69 umps Pumps L. Prieto-Portar 2008 Definitions. Discharge hose or pipe Suction hose Capacity: total volume of liquid slurry moved in a given time (gpm, yd 3 /hr, etc). Strainer A Dubai excavation site on 7 February 2007. Note the large diameter steel strut-braces. Early in the morning a trash pump was placed in operation to take care of a minor leak. Can you identify the pump systems components? Strange sounds made the superintendant evacuate the site; then a portion of wall collapsed. The site during the afternoon. What would you now do as the resident Engineer? Introduction. Pumps are important pieces of equipment on the construction site, used for, 1) Dewatering excavations, tunnels, cofferdams, etc; 2) Providing high pressure water for water jetting; 3) Well-point dewatering of deep excavations for large jobsites. Pumps are classified as reciprocating or centrifugal . Reciprocating pumps use pistons inside cylinders that push the water in one direction. They have the advantages of, 1) being able to provide a uniform rate against varying heads; and 2) the pump s capacity is increased by simply increasing the pump speed. The disadvantages are, 1) reciprocal pumps are heavier than other types of pumps; and 2) their water output pulsates with the pistons....
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This note was uploaded on 09/15/2011 for the course CCE 4001 taught by Professor Staff during the Spring '08 term at FIU.

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HC-Lecture69-Pumps - Heavy Construction Heavy Construction...

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