Grouting at the Westlink Project –Gothenburg, Sweden. The Challenges and How These Are Met-Video

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The West Link is a six-kilometre rail tunnel under central Gothenburg, Sweden, with three underground stations. The project crosses crystalline rock and deep clay, where groundwater drawdown could cause damaging settlements. Its grouting design uses three treatment levels, selected according to fracture conditions and strict leakage limits. Water-loss tests and statistical analysis guide adjustments, while extensive monitoring tracks groundwater, tunnel leakage, infiltration and settlement. Measurements show some sections meet requirements, though seasonal aquifer recharge has caused leakage to exceed limits elsewhere, prompting consideration of post-grouting. The presenters emphasize following and adapting the initial design, supported by continuous, reliable measurements.

Keywords

West Link

Gothenburg rail tunnel

grouting design

groundwater drawdown

tunnel leakage