Seismic Response Hydraulic Hammer on the Secundary Lining Tunnel
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Miroslav Pinka,
Martin Stolarik
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| Transactions of the VSB - Technical University of Ostrava, Civil Engineering Series |
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2012, Volume 12, Issue 2, Pages 132-142
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Doi: 10.2478/v10160-012-0027-1
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Construction and subsequent tunnels collapse of the Jablunkovsk’s pass are already among well known of the professional public. After the collapse left part of the tunnel already standing with secondary lining. The second part was temporarilied concrete secured stopper and heavy bridge formwork. During the progress of work was already reached that stage when plug must be removed. The stopper was removed by combination of blasting operations and hydraulic hammer. This article deals with seismic effect hydraulic hammer. It is therefore a unique measuring effect of vibration
on the final tunnel lining. A vibration downturn was monitored in the first meters of the lining and the records were evaluated in the amplitude and frequency resort. This assessment was made on the basis CSN 73 0040.
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