INGENIERIA GEOLOGICA GONZALEZ VALLEJO PDF

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Skip to main content. Log In Sign Up. Add Social Profiles Facebook, Twitter, etc. Geologia Ambiental Yonzalez 84 7 Pags Une procedure generale pour la cartographie regionale sismotectonique en vue de son utilisation en genie civil more. Bulletin of Engineering Geology and the Environment. Reply to comment from Blanco et al.

Lecture Notes in Earth Sciences. Landslide Science and Practice. Evidence from acoustic imaging for submarine volcanic activity in off the west coast of El Hierro Canary Islands, Spain more. A general procedure for regional seismotectonic mapping for engineering purposes more. Bulletin of the International Association of Engineering Geology. Engineering geology for urban planning and development with an example from tenerife Canary Islands more.

Paleoearthquake evidence in Tenerife Canary Islands and possibleseismotectonic sources more. Paleoliquefaction features on Tenerife Canary Islands in Holocene sand deposits more. Engineering Geology an International Journal.

Javier Gracia and Luis Gonzalez-de-Vallejo. Conspicuous sediment structures ingebieria fossil beach deposits southern Tenerife, Canary Islands, Spain: Paleoearthquake evidence in Tenerife Canary Islands and possible seismotectonic sources more. Journal of Volcanology and Geothermal Research.

GeologyGeochemistryand Geophysics. SRC igenieria mass classification of tunnels under high tectonic stress excavated in weak rocks more. A new method of estimating the ratio between in situ rock stresses and tectonics based on empirical and ingenieriq analyses more. 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.

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The decision tree considers geological and geophysical factors geologia stress magnitudes both on the inhenieria 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. Civil Engineering and Engineering Geology. Engineering geology of the tropical volcanic soils of La Laguna, Vaallejo more.

Ingenieria Geologica by Gonzalez De Vallejo Luis I – Hardcover

Emphasis has been placed on the influence of mineralogy and fabric on the strength and deformation properties, and Emphasis has been placed on the influence of mineralogy and fabric on the strength and deformation properties, and particularly on the results of the classification test. The unusually high strength and low compressibility in relation to the high plasticity, fine particle size and active mineral composition has been explained.

The soil fabric is considered to be the main factor leading to these unusual properties, but geochemical environment and associated mineralogy also play an important part. Since La Laguna soils show similar engineering-geological characteristics to other widely distributed tropical volcanic soils, a review has been made of the different hypotheses which attempt to explain the abnormal properties of these soils.

In-situ stress amplification due to geological factors in tunnels: The case of Pajares tunnels, Spain more. ABSTRACT Geological and geomechanical anisotropies can significantly increase the magnitude of in-situ stress in a rock mass excavated for tunnelling purposes.

Four tunnels for the new high-speed railway lines in Pajares in the Cantabrian Four tunnels for the new high-speed railway lines in Pajares in the Cantabrian Mountains, N. Spain, were analysed and significant deformations was found to have occurred in forty specific zones of these tunnels during excavation, requiring much more support than envisaged gohzalez construction.

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Local factors influencing in-situ stress have been identified in these zones of the tunnels, related to geological structures of high compressive tectonic stress regimes including thrust faults, folds with steep flank dip, or with geomechanical anisotropies in contact zones between rock formations of different strengths.

A methodological procedure was applied to four tunnels to assess the influence of the geological anisotropies on the vvallejo stress magnitudes. This procedure is based on the analysis of tunnel deformations and the support pressure needed to stabilise the excavations affected by geological anisotropies. Kregional was estimated from hydrofracture tests and from the TSI index. Klocal was calculated from the back analysis of the support pressure required to stabilise the deformed tunnel zones.

SAF values for the forty specific tunnel zones ranged from 1. This significant increase in the magnitude of in-situ stress emphasises the influence of geological and geomechanical anisotropies in tunnel stability and support design. The results provide a quantitative approach for assessing structural stresses in rock masses for tunnelling excavations. Bulletin of the Seismological Society of America.

Civil EngineeringGeophysicsand Canary Islands.

Ingeniería geológica (Book, ) []

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