shaft capacity

shaft capacity

[′shaft kə‚pas·əd·ē]
(mining engineering)
The output of ore or coal that can be expected to be raised regularly and in normal circumstances.
References in periodicals archive ?
reducer b3sh07a25 (or equivalent) gear ratio - 25; output shaft design - solid shaft; input shaft design - integral shaft capacity of the connected electric motor - 75 kw / 1500 min-1; climatic version and placement category - u3, product origin - eu countries * 2 pieces 2
It can also be seen that the grouting technique can improve shaft capacity as well as the end bearing capacity of piles (9851.5-4850.0 > 9071-4217.3).
By comparing the ultimate uplift static load test results, it can be determined that there is a 15.7% increment of ultimate pile capacity and shaft capacity after using base and shaft grouting technology.
The allowable shaft capacity may be computed using the following equation:
Screening out minus-30-mm fines and hoisting them hydraulically would increase the shaft capacity by 100,000 mt/mo (dry).
To get around the problem of the shaft capacity constraint, MBT proposed dropping pre-mixed concrete down a steel pipe the full 2,300 m from the surface to the shaft station, so delivering a continuous supply of high-performance, steel fibre-reinforced shotcrete that could be sprayed at any time during the working shift.
work may include tasks but is not be limited to, any or all of the following: perfor- mance of soils investigations and analysis and the recommendation of foundation types including, spread footings, pile and drilled shafts, road cut and fill slopes, pavement thickness design, shrink and swell factors for soils in excavation, location of unsuitable material, preparation of reports that will include recommendations for allowable bearing, pile and drilled shaft capacity, lateral soil loading, settlement, slope stability and bridge pier scour, design alter- natives and special construction methods required to construct new bridge and/or roadways plus other miscellaneous geotechnical tasks.
However, the designed shaft capacity of 3.36 Mt/y would allow for increased production if circumstances are found to be favourable.
MULTI breaks the 160-year tradition of rope-driven elevators and has been designed to increase passenger shaft capacity by 50%.
When maximum shaft skip capacity has been reached, the installation of pneumatic conveying systems substantially extends shaft capacity by 100 t/h/unit.