Tunnel boring machine collision with an ancient boulder beach during the excavation of the Barcelona city subway L10 line: A case of adverse geology and resulting engineering solutions

Filbà, Marta; Salvany, Josep Maria; Jubany, Jordi; Carrasco, Laura

doi:10.1016/j.enggeo.2015.11.010

Cited by 42 publications

(11 citation statements)

References 13 publications

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“…The lower Miocene deposits are identified in several areas of the subsoil of the Barcelona plain and the Llobregat delta (Filbà et al, 2016;GISA, 2002;Parcerisa et al, 2008). It consists of alluvial deposit mainly composed of reddish clayey gravels unconformably overlying the Paleozoic rocks.…”

Section: Geological Settingmentioning

confidence: 99%

The Neogene and Quaternary deposits of the Barcelona city through the high-speed train line

Duran

Rodríguez

2020

GeA

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A total of 208 boreholes with continuous core sampling, drilled for the construction of the high-speed train line through the city of Barcelona and other nearby infrastructures, were studied. The correlation of the lithologic logs of these boreholes allows identifying five main depositional sequences bounded by sharp erosional surfaces: i) lower Miocene, of alluvial origin; ii) middle Miocene, of deltaic-lacustrine origin; iii) lower Pliocene, of beach-shelf origin; iv) Pleistocene, of alluvial origin and v) Holocene, of deltaic origin. The erosive surfaces that separate these sequences represent important erosive hiatus linked to prolonged sea level falls at regional scale, which eliminated the upper part of each one. Sedimentation took place during decreasing intensity of extensional tectonic activity that mainly affected the Miocene deposits. The Plio-Quaternary units show their original structure apparently without tectonic alterations. Some new biostratigraphic data based on foraminifer assemblages allowed making accurate estimate of the age of the deposits.

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Section: Geological Settingmentioning

confidence: 99%

The Neogene and Quaternary deposits of the Barcelona city through the high-speed train line

Duran

Rodríguez

2020

GeA

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“…Characteristics of large-scale, automation, high speed, processize, and delicate are combined into one full face hard rock tunnel boring machine [1][2][3], it is wildly used in tunnelings [4][5][6]. Disc cutter is the main cutter of TBM vibro-cutting rock, the excavation schedule of tunnelings and lifetime of cutters could be direct influenced by its efficiency of breaking rock [7].…”

Section: Introductionmentioning

confidence: 99%

Identification on rock and soil parameters for vibro-cutting rock by disc cutter based on fuzzy radial basis function neural network

Chen

Lang

2018

MATEC Web Conf.

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A single-POF model of disc cutter with rock and soil has been established according to the dynamical feature and vibration mechanism of disc cutter vibro-cutting rock to solve problem of self-adaption vibro-cutting rock for disc cutter, and identification on rock and soil parameter of disc cutter vibro-cutting rock has been carried out by using fuzzy radial basis function neural network. The experimental result of identification simulation and resonant-column test showed that compared to inherent frequency of a hard sandy which was tested by resonant-column test method, the relevant error of rock and soil parameter identification value of disc cutter vibro-cutting rock is 0.87 %, with high estimation accuracy.

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“…The dense network of underground tunnels in Barcelona (highspeed train, Metro, etc.) could create barriers to groundwater flow and cause a rise in groundwater levels upstream of the structure and a drop downstream (Font-Capó et al, 2011, 2015Pujades et al, 2012Pujades et al, , 2015Culí et al, 2016). Investigations of these types of construction projects often contribute to the local body of subsurface information (Filbà et al, 2016;Font-Capó et al, 2012;Martí et al, 2008).…”

Section: Quaternary Stratigraphymentioning

confidence: 99%

A geological model for the management of subsurface data in the urban environment of Barcelona and surrounding area

et al. 2016

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Abstract. The overdevelopment of cities since the industrial revolution has shown the need to incorporate a sound geological knowledge in the management of required subsurface infrastructures and in the assessment of increasingly needed groundwater resources. Additionally, the scarcity of outcrops and the technical difficulty to conduct underground exploration in urban areas highlights the importance of implementing efficient management plans that deal with the legacy of heterogeneous subsurface information. To deal with these difficulties, a methodology has been proposed to integrate all the available spatio-temporal data into a comprehensive spatial database and a set of tools that facilitates the analysis and processing of the existing and newly added data for the city of Barcelona (NE Spain). Here we present the resulting actual subsurface 3-D geological model that incorporates and articulates all the information stored in the database. The methodology applied to Barcelona benefited from a good collaboration between administrative bodies and researchers that enabled the realization of a comprehensive geological database despite logistic difficulties. Currently, the public administration and also private sectors both benefit from the geological understanding acquired in the city of Barcelona, for example, when preparing the hydrogeological models used in groundwater assessment plans. The methodology further facilitates the continuous incorporation of new data in the implementation and sustainable management of urban groundwater, and also contributes to significantly reducing the costs of new infrastructures.

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Tunnel boring machine collision with an ancient boulder beach during the excavation of the Barcelona city subway L10 line: A case of adverse geology and resulting engineering solutions

Cited by 42 publications

References 13 publications

The Neogene and Quaternary deposits of the Barcelona city through the high-speed train line

The Neogene and Quaternary deposits of the Barcelona city through the high-speed train line

Identification on rock and soil parameters for vibro-cutting rock by disc cutter based on fuzzy radial basis function neural network

A geological model for the management of subsurface data in the urban environment of Barcelona and surrounding area

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