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“We disseminate and promote the knowledge and expertise in underground constructions„ |
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Swiss Tunnelling Society The STS is actively involved in all questions related to underground constructions: geology, civil engineering, mechanical engineering, electrical and ventilation systems and safety engineering, both during the planning phases as well as during construction. Discover the group Join now |
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STS in numbers 
50 years Swiss Tunnelling Society 
629 members 
1'852 tunnels built in Switzerland 
2'544 kilometers of tunnels |
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