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Muuga PHAJ heakskiidetud KSH programm - Energiasalv

Muuga PHAJ heakskiidetud KSH programm - Energiasalv

Muuga PHAJ heakskiidetud KSH programm - Energiasalv

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UNDERGROUND CAVERNS IN<br />

GRANITE<br />

MUUGA PUMPED STORAGE<br />

PROJECT 16.6.2011<br />

OUTLINE<br />

• Excavation in granite<br />

• Drill, blast, load, support method<br />

• Grouting<br />

• Shafts<br />

Mikael Takala, M.Sc Geologist<br />

Ramboll Finland, Lahti<br />

• Underground caverns and the environment<br />

• Groundwater inflow<br />

• During construction: noise, vibrations, dust...<br />

• Examples of underground caverns in urban environment<br />

• Viikinmäki, Kakola, ONKALO<br />

• Questions<br />

1

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