Cuando dos frentes se acercan en contra-avance, a menos de 10 metros, solamente puede continuarse el trabajo de la voladura en uno de ellos. El supervisor del frente debe ordenar que el otro frente sea cerrado al ingreso de personal.
Decreto 1335 de 1987 →In force
Article 118
Decreto 1335 de 1987 · mediante el cual se expide el reglamento de seguridad de las labores subterráneas.
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Text of the article
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Constitutional history
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