Structure of air flows in vertical mine shafts
Authors:
Abstract
At the beginning of the current century, P. Wilski, orienting a 1090 m deep mine in Příbram, found that measurements of the adjacent angles at air movement in the shaft and in the absence of this movement give a discrepancy of 11'31”. Based on this and on the data of visual observations of air movement in the shafts, he put forward a hypothesis about the helical movement of air along the shaft, affecting the magnitude of the weight deviation a. He determined the magnitude of the deflection a using the formula ...
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References
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- Lisitsa I. G. Basic questions of plumb bob design at geometrical orientation of mines. Author's abstract of doctoral dissertation, LMI, 1963.
- Sentemov A. K. Deviation of plumb bob under the influence of air jet. Proc. CNIMB, vol. 13, 1941.