Activities Required For Shaft Sinking
we can divide the operations for sinking a shaft into three parts: (R. Tatia 2005)
- Reaching up to the rock head
- Sinking through the rock
- Sinking through the abnormal difficult ground, if any, using special methods
A sinking cycle includes the following operations: (R. Tatia 2005)
- Drilling
- Blasting
- Mucking and hoisting
- Support or shaft lining
- Auxiliary operations
- Dewatering
- Ventilation
- Lighting or illumination
- Shaft centering
Read more about this topic: Shaft Construction, Shaft Sinking
Famous quotes containing the words activities, required, shaft and/or sinking:
“Minds do not act together in public; they simply stick together; and when their private activities are resumed, they fly apart again.”
—Frank Moore Colby (1865–1925)
“In many places the road was in that condition called repaired, having just been whittled into the required semicylindrical form with the shovel and scraper, with all the softest inequalities in the middle, like a hog’s back with the bristles up.”
—Henry David Thoreau (1817–1862)
“Lord, crack their teeth! Lord, crush these lions’ jaws!
So let them sink as water in the sand;
When deadly bow their aiming fury draws,
Shiver the shaft ere past the shooter’s hand.
So make them melt as the dishoused snail”
—Bible: Hebrew Psalm LVIII (Paraphrased by the Countess of Pembroke)
“And this gray spirit yearning in desire
To follow knowledge like a sinking star,
Beyond the utmost bound of human thought.”
—Alfred Tennyson (1809–1892)