Sump

sump

1. a receptacle, such as the lower part of the crankcase of an internal-combustion engine, into which liquids, esp lubricants, can drain to form a reservoir

2. Brit dialect a muddy pool or swamp

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sump [səmp]

(engineering)

A pit or tank which receives and temporarily stores drainage at the lowest point of a circulating or drainage system. Also known as sump pit.

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sump

1. A pit, tank, basin, or receptacle which receives sewage or liquid waste, located below the normal grade of the gravity system, and which must be emptied by mechanical means.

2. A reservoir sometimes forming part of a roof drain.

3. A depression in a roof deck where the roof drain is located.

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Sump 

in mining, an underground working for the collection of surface and subterranean water so that it may be pumped away. The size of the sump is based on the amount of inflow during a period of ten to 12 hours with all drainage pumps shut down. Under emergency flow conditions in a mine, use is made of the additional capacity represented by the workings lying adjacent to the sump and below the pump chamber. The sump is divided by a cofferdam into two sections; when one is in operation, the other is drained.

As places where water accumulates during drainage, sumps are used in mines, subway tunnels, quarries, and elsewhere.

REFERENCE

Burovzryvnye raboty, pogruzka, kreplenie, rudnichnyi ventiliatsiia i vodootliv. Moscow, 1964.

V. A. POLUIANOV

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Sump 

(1) A storage vessel for collecting water that is placed in rock. Where deposits are worked by hydraulic mining, the hydraulic fluid is collected in a sump, for intake and pumping by a soil, coal, or sand pump.

(2) The part of a shaft situated below the level of the shaft bottom (sump or pit).