Albulatunnel II (RhB), Brüttener Tunnel (SBB), Gotthard Base Tunnel rehab — SIA 267 governs the geotechnics.
Cross-border deep-foundation workforce mobilisation against Albulatunnel II (Rhätische Bahn, commissioned 2024), Brüttener Tunnel (SBB, Winterthur-Töss planning), Zimmerberg-Basistunnel II (SBB long-term programme), and Gotthard Base Tunnel rehabilitation (post-August 2023 derailment) — SIA 267 Geotechnik design code, BAV oversight.
Request Technical BriefingRegulator exposure profile
- SIA 267 + SIA 197/19828%
- BAV + Suva Tunnelbau26%
- EntsG + 8-Tage-Voranmeldepflicht24%
- GAV Bauhauptgewerbe LMV22%
Strata change with depth; cert overlays change with strata.
Alpine tunnel + deep-foundation work spans moraine fill / glacial till / sedimentary cover / crystalline basement. Albulatunnel II (RhB) and Brüttener Tunnel (SBB) sit principally in sedimentary cover; Gotthard Base sits in crystalline basement. SIA 267 Geotechnik + SIA 197/198 Untertagbau.
▲ Ground level
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Moraine / fill 0-5m
Surface stabilisation · Suva ATEX-equivalent VGSEB
- SIA 267
- Suva Arbeitssicherheit
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Glacial till / loose deposits 5-30m
Casing-supported bore
- SIA 197 Untertagbau
- Bentonite support
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Sedimentary cover 30-200m
Conventional drill-and-blast
- SIA 198 Tunnelbau
- Suva Tunnelbau
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Crystalline basement 200m+
TBM hard rock · final bearing layer
- SIA 267-2 special
- AlpTransit experience base
▼ Tunnel invert · bearing layer
Named projects in this jurisdiction
- Albulatunnel II (RhB) — new bore parallel to historic Albula tunnel, commissioned 2024 Rhätische Bahn (RhB) 2024
- Brüttener Tunnel (SBB) — Winterthur-Töss section planning SBB Infrastruktur
- Zimmerberg-Basistunnel II (SBB long-term programme) SBB Infrastruktur
- Gotthard Base Tunnel rehabilitation (post-August 2023 derailment) SBB Infrastruktur
Switzerland’s deep-foundation market centres on Alpine tunnel programmes. Gotthard Base Tunnel (operational since 2 June 2016) is now in rehabilitation mode following the August 2023 derailment. Albulatunnel II (RhB) commissioned 2024.
01. Pre-pricing — GAV Bauhauptgewerbe LMV
Tunnel and deep-foundation workforce sits under GAV Bauhauptgewerbe Landesmantelvertrag. Suva Tunnelbau-Zusatzversicherung covers high-risk tunnel scope.
02. SECO Voranmeldepflicht + A1
A1 + language-appropriate contract + 8-Tage-Voranmeldung. Construction-sector → day-one applicability.
03. Suva Tunnelbau + cantonal AHV onboarding
Tunnel-trade enrolment against Suva Tunnelbau (specialist branch). Cantonal AHV per worker.
04. SECO + Suva + BAV-defensible evidence pack
Minimum pack: CHF / EUR remuneration, language-appropriate contract, Voranmeldung record, Suva membership, GAV LMV wage-rate per worker, SIA 267 competency where Geotechnik scope applies.
05. India and Gulf sourcing corridors — the CH deep-foundation pathway
Indian deep-foundation pool delivers L&T-trained bored-pile rig operators + Gammon India tunnel-trade. SBFI Anerkennung. The 8 to 14-week corridor delivers the GAV-LMV-compliant candidate against RhB Albulatunnel II, SBB Brüttener, or AlpTransit rehabilitation packages.