Segment Storage

New mago Load Distribution Board

Until now, normal untreated hardboard has been used as load distribution boards. For the purpose of rationalisation, these boards are mostly glued on immediately after segment production. Then the segments are often stored for a few weeks or months exposed to the weather. With this procedure, it can occur that the load distribution boards, which consist of 93 % wood, absorb damp, swell up and can sometimes exceed the specified thickness by 50–80 %. In such cases, the function of the sealing is no longer completely ensured and water can leak into the tunnel. The remediation of such defects is...

Related articles:

France/Saudi Arabia

Acimex supplies Vacuum Technology for Riyadh Metro

The French company Acimex, specialized in vacuum handling technology, announced its supply of a segment erector system as well as a segment trolley to the EPB TBM made by the French manufacturer NFM...

more
Heco

Screw Anchor for Fire Protection Boards in Tunnel Constructions

With the Multi-Monti screw anchor, German fastening specialist Heco from Schramberg in the Black Forest supplies a product for fastenings in concrete which offers numerous benefits compared to drop-in...

more
Heco

Screw Anchor for Fire Protection Boards in Tunnel Constructions

With the Multi-Monti screw anchor, German fastening specialist Heco from Schramberg in the Black Forest supplies a product for fastenings in concrete which offers numerous benefits compared to drop-in...

more

Influences on Segment Damage

1 Introduction Segments represent the bearing structure for the finished product in mechanised tunnelling. This fact results in high demands both on manufacturing as well as on transporting and...

more
Hahn Kunststoffe

Segment Storage

The same applies for every tunnel project: segments must be at the right place at the right time. Towards this end, special demands are posed on the transport and storage of these weighty concrete...

more