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Hypothesis of the multiple subsidence trough related to very steep and vertical coal seams and its prediction through profile functions

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Abstract

Coalfields in the north of Spain (Asturias) are mainly steeply dipping and at considerable depth. There is widespread use of caving mining methods at the present time. This paper describes a theory developed to predict the subsidence related to very steep and nearly vertical coal seams (70°–90°). This ‘theory of the multiple subsidence trough’ is applied through a new profile function. Three real cases are analysed and the profile function is adjusted. An empirical relationship between the parameters of the new profile function and geological and mining factors has been developed.

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Authors and Affiliations

  1. Departamento de Prospección y Explotación de Minas, Escuela Técnica Superior de Ingenieros de Minas de Oviedo, C/ Independencia, 13, 33004, Oviedo, Spain

    Rafael Rodríguez Díez

  2. Departamento de Prospección y Explotación de Minas, Escuela Técnica Superior de Ingenieros de Minas de Oviedo, C/ Independencia, 13, 33004, Oviedo, Spain.

    Javier Toraño Álvarez

Authors
  1. Rafael Rodríguez Díez
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  2. Javier Toraño Álvarez
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Díez, R.R., Álvarez, J.T. Hypothesis of the multiple subsidence trough related to very steep and vertical coal seams and its prediction through profile functions. Geotechnical and Geological Engineering 18, 289–311 (2000). https://doi.org/10.1023/A:1016650120053

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  • DOI: https://doi.org/10.1023/A:1016650120053

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