... a. T I I I T K factor vs gas rate for - 99Omm, 4 bladcd Rl00 impe er at 2rpn: \ \ .. ... FIG 7 - Typcial curve of K factor vs gas rate at a given irnpeller speed. ...
... strength parameters are not reduced (F= I), at the following iterative process of computing, K will strive for zero. In parallel with it, the factor of safety ...
... where, Sp = strength of the pillar in MPa, R = long term strength factor, K = in-situ strength of coal in MPa, W = pillar-Width in rn, and h = thickness of ...
... These two factors can be combined together in a single factor K. °The support system can then be optimised for the value of K. such that: ., K = ns' rl m/m ...
... mechanics is the stress intensity factor, K , which is a measure of stress intensity at the tip of a crack in a stressed body. This is given as: ...
... The strength of pillars calculated by four methods is shown in Fig. 2. The in-situ strength of coal, represented by the factor k, is assumed to be 7 MPa. ...
... The Design-Expert™ software was utilized to calculate the factor effects relative to the K (ppm) in leached TGM solids and Mo (g/L) dissolved in leach ...
... integral of the first kind with the module k 2 ; V GEg is an average speed of gas in the horizontal section of furnace shaft, m/s; k is the factor taking into ...