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Mining construction

Definition of Tunnel waterproofing systems with increasing waterproofing requirements.

The mining construction is the typical construction for Tunnels in the underground. We principle differentiate between periodic Tunnel driving and continuous Tunnel driving. In both variants, the use of tunnel sealing systems with geomembranes is possible.

Perodic driving = drill and blast
Continous driving = tunnel boring machine


No. (acc. to increasig sealing requirements) Hydrostatic (m) Waterproofing-
membrane System
Sealingsystem (Water corrision class, XA-class) Additional Requirements
low, moderate XA1, XA2 high, XA3 Waterstops (inside or outside installation) Integrated Injektion-
system
1 without - watertight concrete - yes no
2 without umbrella Geomembrane 2mm - no no
3 without all around 360° - Geomembrane 3mm no no
4 <10 - watertight concrete - yes no
5 <10 all around 360° Geomembrane 3mm yes no
6 <30 - watertight concrete - yes no
7 <30 all around 360° Geomembrane 3mm yes yes
8 <60 all around 360° watertight concrete + Geomembrane 3mm (optional Geomembrane 4mm) yes yes
9 <60 all around 360° watertight concrete + Geomembrane 3mm + Leakage detection system yes yes
10 <60 all around 360° Geomembrane double layer (3mm + 2mm) yes yes
11 <60 all around 360° Geomembrane double layer (3mm + 2mm) + Leakage detection system yes yes
12 >60 all around 360° watertight concrete + Geomembrane double layer (3mm + 2mm) yes yes
13 >60 all around 360° watertight concrete + Geomembrane double layer (3mm + 2mm) + Leakage detection system yes yes

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