A new method of estimating the ratio between in situ rock stresses and tectonics based on empirical and probabilistic analyses
This paper describes a new procedure for assessing the ratio between in situ stresses in rock masses by means of K (K=σH/σv, being σH and σv principal stress) and tectonics for purposes of engineering geology and rock mechanics. The method combines the use of the logic decision tree and the empirica...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2008 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/49979 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/49979 |
| Access Level: | acceso abierto |
| Palabra clave: | 551.4 In situ stress Tectonic stress Geomechanical index Decision tree Logic tree Probabilistic methods Geodinámica 2507 Geofísica |
| Sumario: | This paper describes a new procedure for assessing the ratio between in situ stresses in rock masses by means of K (K=σH/σv, being σH and σv principal stress) and tectonics for purposes of engineering geology and rock mechanics. The method combines the use of the logic decision tree and the empirical relationship between the Tectonic Stress Index, TSI, and a series of K in situ values obtained from an extensive database. The decision tree considers geological and geophysical factors affecting stress magnitudes both on the regional and local scale. The TSI index is defined by geological and geomechanical parameters. The method proposed provides an assessment of the magnitude of horizontal stresses of tectonic origin. Results for several regions of Europe are presented and the possible applications of the procedure are discussed. |
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