SPAIN | CIVIL ENG. AND CONSTRUCTION

Road underpass in Plaza de Glories

Construction of underpasses
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PROJECT OBJECTIVE

Improved mobility

The Barcelona City Council through its infrastructure company BIMSA begins the construction of the road underpass in Plaza de Glories. This infrastructure will improve mobility in a place of transport centralization and high traffic. For this purpose, the construction of underpasses with a North-South orientation is being carried out, divided into 4 lots.

These underpasses will cross other critical infrastructure such as commuter train lines. This crossing creates a delicate situation in an infrastructure that is in use by thousands of users.

Date of execution:

2017

Location:

Barcelona, Spain.

Sector:

Civil Engineering and Construction

Client:

How we made it happen

Monitoring system

BIMSA, through the company contracted for the Eurogeotechnical auscultation, commissioned Álava Ingenieros to install a monitoring system to record the possible impact of the new works on the existing infrastructure.

The pre-driving of a battery of horizontal metallic tubes will constitute a shelter structure for the construction progress. These 1.1-meter diameter metal tubes will limit deformations under the existing tunnels, while serving as a protective shield for the lower works during the crossing.

Grupo Álava proposed a novel methodology for monitoring structural deformations. It proposed the installation of 4 arrays of SAA (Shape Array Accelerometers) from Measurand installed in 4 of the inclinometer tubes that were already installed in what supports the railway infrastructure and that until now were being used for measurements with manual reading inclinometers. Two 55-meter arrays and two 32-meter arrays were installed with the following distribution.

Álava Ingenieros was in charge of the supply, the installation of the sensors, the configuration of the hardware and software of the acquisition system, finishing the work with the configuration of sending the data to the client to be included in its data representation platform.

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OUR CONTRIBUTION

Some of our products and services applied to this project

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Service

Technology consulting

We advise on the best technological solution to apply according to the needs of each project. Learn more about our technology consulting.

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Service

Infrastructure process monitoring

We proposed a novel methodology for structural deformation monitoring. Learn more about our monitoring service.

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Product

Sensors

We take care of the supply, installation of the sensors, and the configuration of the hardware and software. See all our sensor products.

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PRODUCT

Infrastructure monitoring

We installed 4 arrays of SAA (Shape Array Accelerometers) from Measurand. Learn more about our monitoring products.

Need more information about our products and services for your industry?

Need more information about our products and services for your industry?

RESULTS AND ACHIEVEMENTS

Deformation analysis

A continuous deformation monitoring system was obtained to ensure the serviceability of the railway infrastructure during the construction of the road tunnel. The result is the evolution of the deformation of the slabs in 4 sections transverse to the track axis, with a measurement point every meter.

It is possible to configure the cadence in the acquisition of each line, from several per hour to several per day. It has proved to be a reliable system to minimize the risk of affecting other infrastructures during the construction of the tunnel.

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OUR EXPERIENCE

Other projects and clients that have counted on us

GROUP COMPANIES

Synergy is the key to our success.

We have specialized in the needs of our customers and the technologies they require, maximizing the capabilities of each brand with the synergy of the Alava Group itself.

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