Prediction of the ground conditions ahead the TBM face in the tunnels of Guadarrama (Spain), using, Electrical Resistivity Tomography (ERT). Galera, J. M., Peral, F., & Rodriguez, A. Millpress Science Publishers, Rotterdam, 2004.
Prediction of the ground conditions ahead the TBM face in the tunnels of Guadarrama (Spain), using, Electrical Resistivity Tomography (ERT) [link]Paper  abstract   bibtex   
The tunnels of Guadarrama are new twin tunnels crossing them Central Range between Madrid and Segovia, as part of them new High Speed Railway. Line to the NW of Spain. Their lengthii 28;3:kml with a maximum overburden of 900 m. The foreseen geology consists mainly of crystalline rocks, gneiss and granites, with a main. graben in the Lozoya valley where poor quality sedimentary rocks from the Cretaceous are expected. Nevertheless several faults have also been detected with mylonites and water. The tunnels are under construction. using four double-shield'TBMs, all of them. with, an excavation diameter of 9,5 m. In order to predict in detail the ground conditions ahead the TBM face, a review of the geological' features has been done. This has consisted in detailed geological mapping with a precise, photogeological studyi and systematic Electrical Resistivity Tomography (ERT) profiles- along the axis of botht tunnels. In the, main faults inclined borcholes were drilled in order to, perform dilatometer and permeability in situ tests.. With all these data it is decide& in advance if the doublb-shield is going to work in a TBM mode or not. A type of expert system is being used to interpret the data coming from TBM. after it has crossed the expected faults, so allowing a feedback to the entire process.
@book{vianadafonsea_prediction_2004,
	address = {Rotterdam},
	series = {Geotechnical and {Geophysical} {Site} {Characterization} {Vols} 1 and 2},
	title = {Prediction of the ground conditions ahead the {TBM} face in the tunnels of {Guadarrama} ({Spain}), using, {Electrical} {Resistivity} {Tomography} ({ERT})},
	isbn = {90-5966-009-9},
	shorttitle = {Prediction of the ground conditions ahead the {TBM} face in the tunnels of {Guadarrama} ({Spain}), using, {Electrical} {Resistivity} {Tomography} ({ERT})},
	url = {://000239478800173},
	abstract = {The tunnels of Guadarrama are new twin tunnels crossing them Central Range between Madrid and Segovia, as part of them new High Speed Railway. Line to the NW of Spain. Their lengthii 28;3:kml with a maximum overburden of 900 m. The foreseen geology consists mainly of crystalline rocks, gneiss and granites, with a main. graben in the Lozoya valley where poor quality sedimentary rocks from the Cretaceous are expected. Nevertheless several faults have also been detected with mylonites and water. The tunnels are under construction. using four double-shield'TBMs, all of them. with, an excavation diameter of 9,5 m. In order to predict in detail the ground conditions ahead the TBM face, a review of the geological' features has been done. This has consisted in detailed geological mapping with a precise, photogeological studyi and systematic Electrical Resistivity Tomography (ERT) profiles- along the axis of botht tunnels. In the, main faults inclined borcholes were drilled in order to, perform dilatometer and permeability in situ tests.. With all these data it is decide\& in advance if the doublb-shield is going to work in a TBM mode or not. A type of expert system is being used to interpret the data coming from TBM. after it has crossed the expected faults, so allowing a feedback to the entire process.},
	language = {English},
	publisher = {Millpress Science Publishers},
	author = {Galera, J. M. and Peral, F. and Rodriguez, A.},
	editor = {VianaDaFonsea, A. and Mayne, P. W.},
	year = {2004},
	keywords = {\#nosource, INVERSION, geophysical prospection, site characterization, tunnel},
}
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