Mine Timbering (Classic Reprint)

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Excerpt from Mine Timbering Timbering of shafts, stations, and levels, 7. Shafts, 7. In elined shafts, 10. Stations for inclines, 13. Alinement of incline sets, 14. Vertical shafts, 16. Cribbed shaft timber ing, 16. Halved framing for shaft sets, 18. Square-set shaft timbers, 20. One-compartment shafts, 20. Locating shaft sets, 22. Alinement of vertical shafts, 24. Repairing shafts 25. Timbering shafts in loose ground, 26. Timbering shafts in running ground, 26. Two-compartment shafts, 28. Thresh compartment shafts, 29. Four-compartment shafts, 31. Lad ders, 34. Shaft station sets, 35. Stations, 35. Levels, 36. Timbering levels in loose ground, 39. Timbering of the work ing places in a mine, 41. Posts, 41. Cribs, 41. Stulls, 42. Penning, 45. Square sets in stoping, 46. Reinforcing sets, 49. Ore chutes, 49. Waste filling, 50. Methods of framing, 50. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.