Economical and safe support for underground excavations

Authors

  • Enrique Toledo Garay Teacher of Mechanical Engineering National University of San Marcos.
  • Gerardo Mendoza Delgadillo Teacher of Mechanical Engineering National University of San Marcos.
  • Tomas Gallarday Bocanegra Teacher of Mechanical Engineering National University of San Marcos.

DOI:

https://doi.org/10.15381/iigeo.v14i28.655

Keywords:

Steel construction reinforced Shotcrete, Cobriza mine, reinforced concrete in tunnels, rock mechanics

Abstract

The most economical and safe support so far applied in Perú is implemented in Cobriza mine, called Shot-Fer. This method of application of rein forcer concrete tunnels and mine workings by Shotcrete or Gunite is a product of the research, based on the ACI 318-81 and the analysis of structures submitted arches Timoshenko books (Volume II, pp: 97-109) and Olivera Lopez (pp: 127-139); having calculated the workload under the proposal Stagg (pp: 103-124 and 193-222) and Hock (pp. 183-201). The Sho-Fer is quite different from NAM (new Austrian method) applied successfully in many countries. This method of application of reinforced concrete by Shotcrete, is much more efficient, lower cost and with greater versatility than the NAM to adapt to any changes in rocks mechanics that occur in mining operations, precisely in the insertion steel within the concrete mass

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Published

2011-12-15

Issue

Vol. 14 No. 28 (2011)

Section

Artículos científicos

License

Copyright (c) 2011 F. Enrique Toledo Garay, Gerardo Mendoza Delgadillo, Tomas Gallarday B.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.

b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Rev. Inst. investig. Fac. minas metal cienc. geogr.

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Toledo Garay, E., Mendoza Delgadillo, G., & Gallarday Bocanegra, T. (2011). Economical and safe support for underground excavations. Revista Del Instituto De investigación De La Facultad De Minas, Metalurgia Y Ciencias geográficas, 14(28). https://doi.org/10.15381/iigeo.v14i28.655