Abstract
This paper develops a model that allows the variation in the stress state in an area of ground to be determined, especially in the rock mass, as a consequence of human activity. It does so through the basis of measurements carried out at three boreholes that are neither co-linear nor co-planar and which are oriented towards the area in which the stress state is to be determined. More specifically, the method uses the data obtained from the measurement of the variations in diameter in each of the boreholes as a result of the alteration of the stress state of the rock mass, and calculates the deformation in three directions, perpendicular to one another. An elastic behaviour is assumed to obtain the state of stress. Finally, the paper reports a practical application of the method in an underground coal mine in Asturias (Spain), where it was possible to measure the stress states of the rock walls of the mined seam.
Résumé
L’article présente un modèle donnant l’évolution de l’état de contrainte dans un volume de terrain défini, particulièrement en massif rocheux, en conséquence d’activités humaines. Ce résultat est obtenu sur la base de mesures réalisées au niveau de trois forages, ni co-linéaires ni co-planaires, orientés vers la zone d’étude. Plus précisément, la méthode utilise les données obtenues à partir de mesures des variations de diamètre de chaque forage résultant de la modification d’état de contrainte du massif, et calcule la déformation dans trois directions perpendiculaires ente elles. Un comportement élastique du terrain est supposé pour obtenir l’état de contrainte. Finalement, une application pratique de la méthode est présentée, réalisée dans une mine de charbon souterraine des Asturies (Espagne), où il a été possible de mesurer des états de contraintes dans les épontes de la couche exploitée.
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References
Amadei B, Stephansson O (1997) Rock stress and its measurement. Chapman & Hall, London
Brady BHG, Brown ET (1994) Rock mechanics for underground mining. Chapman & Hall, London
Coetzer S (1997) Conceptual development of a method to determine the principal stresses around coal mine workings to ensure safe mine design. CSIR MININGTEK, Pretoria
Fairhurst C (2003) Stress estimation in rock: a brief history and review. Int J Rock Mech Min Sci 40:957–973
GEOKON (2004) 4300 Series vibrating wire stressmeter. Instruction manual
Giot R, Giraud A, Homand F (2006) Three-dimensional finite element modelling of stress relaxation tests in anisotropic clayey medium: direct problem and back analysis. Geotech Geol Eng 24:919–947
Li G et al (2009) Stress field determination from local stress measurements by numerical modelling. Int J Rock Mech Min Sci 46:138–147
Ljunggren C, Chang Y, Janson T, Christiansson R (2003) An overview of rock stress measurement methods. Int J Rock Mech Min Sci 40:975–989
Obara Y, Sugawara K (2003) Updating the use of the CCBO cell in Japan: overcoring case studies. Int J Rock Mech Min Sci 40:1189–1203
Olalla C, Perucho A, Arroyo F (1993) Medida de tensiones internas en formaciones rocosas. CEDEX, Madrid
Panet M (1995) Calcul des tunnels par la méthode convergence–confinement. Presses de l’école nationale des Ponts et chaussées, París
Sjöberg J, Klasson H (2003) Stress measurement in deep boreholes using de Borre (SSPB) probe. Int J Rock Mech Min Sci 40:1205–1223
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Álvarez-Fernández, M.I., González-Nicieza, C., Argüelles, A. et al. Determination of the stress state in a rock mass subjected to excavation. Bull Eng Geol Environ 70, 243–253 (2011). https://doi.org/10.1007/s10064-010-0320-0
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DOI: https://doi.org/10.1007/s10064-010-0320-0