Mine Timbering
Mine Timbering
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In our eReader you can find the full English version of the book. Read Mine Timbering Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Mine Timbering
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55. RICHMOND METHOD, necessarily abridged article.
FIG. 54. BURLINGAME METHOD.
52 -10*^ %, m\ :fr MINE TIMBERING Cao irTfi "" r~" r 111 ml 4i " Side fl 5&. Ll Girt- Side 1 Post Sill Girt Top tr Cap Sill - -5'-2- Top . }'- One-Post Sill Side H. I Top Two-Post Sill Side -5V Top FIG. 56. ANACONDA METHOD OF FRAMING. Details.
MINE TIMBERING BY THE SQUARE-SET SYSTEM AT ROSSLAND, B. C. BY BERNARD MACDONALD MINE TIMBERING BY THE SQUARE-SET SYSTEM AT ROSSLAND, B. C. 1 BY BERNARD MACDONALD IN mining oper...ations, when the ore extracted exceeds a width, of 12 or 15 ft. , it has been found that the cheapest and only effective method of timbering is by the square-set system.
The system may be generally described as a rectangular skeleton framework of timbers, extending from wall to wall of the vein as exhausted, the different members of which are so framed as to stiffen and support each other, and equalize and distribute local strains after the manner of a truss.
HISTORICAL The square-set system of timbering was invented by Philip Deidesheimer, while Superintendent of the Ophir mine, on the Comstock lode, in 1860.
What to read after Mine Timbering?
You can find similar books in the "Read Also" column, or choose other free books by Wilbur E Sanders to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
55. RICHMOND METHOD, necessarily abridged article.
FIG. 54. BURLINGAME METHOD.
52 -10*^ %, m\ :fr MINE TIMBERING Cao irTfi "" r~" r 111 ml 4i " Side fl 5&. Ll Girt- Side 1 Post Sill Girt Top tr Cap Sill - -5'-2- Top . }'- One-Post Sill Side H. I Top Two-Post Sill Side -5V Top FIG. 56. ANACONDA METHOD OF FRAMING. Details.
MINE TIMBERING BY THE SQUARE-SET SYSTEM AT ROSSLAND, B. C. BY BERNARD MACDONALD MINE TIMBERING BY THE SQUARE-SET SYSTEM AT ROSSLAND, B. C. 1 BY BERNARD MACDONALD IN mining oper...ations, when the ore extracted exceeds a width, of 12 or 15 ft. , it has been found that the cheapest and only effective method of timbering is by the square-set system.
The system may be generally described as a rectangular skeleton framework of timbers, extending from wall to wall of the vein as exhausted, the different members of which are so framed as to stiffen and support each other, and equalize and distribute local strains after the manner of a truss.
HISTORICAL The square-set system of timbering was invented by Philip Deidesheimer, while Superintendent of the Ophir mine, on the Comstock lode, in 1860.
What to read after Mine Timbering?
You can find similar books in the "Read Also" column, or choose other free books by Wilbur E Sanders to read onlineMoreLess
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