---
title: Tunnels take centre stage
url: "https://www.systra.com/en/news/tunnels-take-centre-stage/"
type: post
date_published: 2023-10-06
date_modified: 2023-10-10
schema:
  @type: Article
language: en-US
word_count: 382
reading_time: 2 min
canonical: "https://www.systra.com/en/news/tunnels-take-centre-stage/"
featured_image: "https://www.systra.com/wp-content/uploads/2023/10/aftes-3.jpg"
categories:
  - Non classé
---

# Tunnels take centre stage

![Tunnels take centre stage](https://www.systra.com/wp-content/uploads/2023/10/aftes-3.jpg)

### Maximum exposure in Canada

From 24 to 26 September, teams from SYSTRA Canada and SYSTRA SWS took part in
the TAC 2023 conference in Toronto, Canada. This major North American event is
organised by the Tunnelling Association of Canada (TAC), and this year’s theme
was ‘Smart Solutions, Future Growth’. Of particular note this year was a major
exhibition showcasing trenchless tunnel excavation technologies, with examples
from Canada and around the world.

![whatsapp-image-2023-10-02-at-15-35-36-2](https://www.systra.com/wp-content/uploads/2023/10/whatsapp-image-2023-10-02-at-15-35-36-2.jpeg)

_Edoardo Misano on stage during the TAC 2023 conference_

The TAC 2023 conference was an opportunity for Edoardo Misano, SYSTRA SWS tunnel
expert, to demonstrate our skills in conventional tunnel excavation methods
under the Seine in Paris. In particular, the case study of lot T3a of line 15
South of the Grand Paris Express, in which SYSTRA SWS was involved, was
presented, to show how the state of the soil meant that the shafts and
horizontal access galleries had to be redesigned, and then the soil had to be
treated appropriately to prevent any instability between the water and the
ground.

![S1078_Grand_Paris_3513_Jo.TIF](https://www.systra.com/wp-content/uploads/2023/10/20180412_tbm_l15-champigny-1024x683.jpg)

_Tunnel boring machine, Line 15 Grand Paris Express_

### Spotlight on road tunnels in Colombia

The following week in Medellín, Colombia, the ‘ExpoTúneles y Minería Subterránea
2023’ was held, focusing on the underground and mining markets. Representatives
from SYSTRA Subterra were on hand to meet our clients.

Rafael Sanchez, Head of the Safety Installations Department, gave a presentation
on the inspection and safety of road tunnels.

![colombie](https://www.systra.com/wp-content/uploads/2023/10/colombie.jpg)

_SYSTRA presents during the conference in Colombia_

### Tunnels in the City of Lights

Finally, it was in France that the world of tunnels met for the 17th
international AFTES (French Association for Tunnels and Underground Spaces)
conference, from 2 to 4 October in Paris.

The SYSTRA France stand was the venue for a host of meetings with all those
involved in the underground, public works, and tunnel structure sectors,
focusing especially on energy, the environment and digital transition.

![1696351326378](https://www.systra.com/wp-content/uploads/2023/10/1696351326378.jpg)

_The SYSTRA stand at the AFTES conference_

[See our Tunnels brochure](https://www.systra.com/wp-content/uploads/2020/07/systra-tunnels-brochure.pdf)

**Categories:** Non classé