2 edition of Stereographic method of determining whether planes of weakness transect pillars found in the catalog.
Stereographic method of determining whether planes of weakness transect pillars
Bibliography: p. 17.
|Statement||by Jack A. Touseull.|
|Series||Report of investigations - Bureau of Mines ; 8232, Report of investigations (United States. Bureau of Mines) -- 8232.|
|Contributions||United States. Bureau of Mines.|
|The Physical Object|
|Pagination||, 17 p. :|
|Number of Pages||17|
Such models employ fracture flow and pipe flow equations to determine flow rates and only consider average velocities within each fracture segment. Such approximations make large scale simulations of speleogenesis tractable. However, they do not allow simulation of the formation and evolution of micro- or meso-scale cave passage Size: 5MB. This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation.
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Get this from a library. Stereographic method of determining whether planes of weakness transect pillars. [Jack A Touseull; United States. Bureau of Mines.]. The Bureau of Mines has developed a simple stereographic method of analyzing the orientation of single and intersecting planes of weakness in vertical pillars of parallel symmetry.
From this method, it can be determined if planes of weakness transect the full horizontal cross section of a pillar. Stereographic method of determining whether planes of weakness transect pillars / By Jack A. Touseull. Abstract. Includes bibliographical references (p. 17).Mode of access: Internet Topics: Strength of materials., Pillaring (Mining) Publisher: [Washington, D.C Author: Jack A.
Touseull. Intersection of two planes In 3-D, two planes will intersect in a line. 1) Visualize the problem 2) Plot each plane 3) On the stereonet plot, the two great circles should intersect at a point.
4) Follow the directions for determining the trend and plung of a line on the stereonet. Apparent Dip Size: 1MB. The principal functions of underground mine pillars are to stabilize openings and to carry the load of overlying rock strata. They are often (partially or completely) recovered at a later stage when their stabilizing effect is no longer required.
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