Underground
Precast Underground
Bucline Shaft Linings
Caisson Shaft Linings
Caisson Shaft Rings
Cover - Landing Slabs
Buclock Tunnel Linings
Trapezoidal Segment
Buclock
Grouting - Lifting
Pit Solutions
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PRECAST Underground products from Buchan Concrete Solutions have been developed to offer a practical range of supporting materials for use in shaft and tunnel construction processes.
PRECAST Underground aims to provide customers with products that can be easily installed, with minimum finishing required, when working in an underground environment. |
 Buchan offers a bespoke service for specific tunnel and shaft projects, based on more than 40 years experience in supplying the tunnelling industry worldwide, as well as providing bespoke products. The following standard products are available:
Bucline Shaft Linings
A smooth segmental shaft joined together by hidden mechanical fixings, Buchan's unique system retains all the flexibility and speed of erection associated with a traditional bolted ring, whilst also providing a smoother finish to the shaft. These are also available with EPDM gaskets, which are factory fitted.
A complete range of cutting edges, corbel rings and bespoke cover and landing slabs are available to assist in the construction process for all types of shaft rings.
Buclock Tunnel Linings
A Buclock tunnel is a completely smooth segmental tunnel lining joined together by hidden mechanical fixings. This range of linings has been developed to provide accurate construction with conventional tunnelling shields. The system provides a lining that is strong, flexible and fast to build.
Buclock Connections
Combining the advantages of a solid dowel and a secure threaded connection, the self-locking plastic connector provides an ideal circle joint fixing for tunnel linings. Suitable for use with packings, hydrophilic seals or EPDM compression gaskets.
It is totally non ferrous, fast and easy to build, leaving no pockets or recesses to fill, offering significant savings in construction time and cost. Only a minimum amount of building clearance is necessary and it is fully compatible with most types of tunnelling machines.
Trapezoidal Segmental Tunnel Linings
Developed in conjunction with leading consultants and contractors, these single pass smoothbore linings have been designed for use with the latest closed-face tunnelling machines.
The linings can be designed to accommodate elastomeric compression gaskets or hydrophilic seals. Individual segments are wedge shaped thus eliminating the need for a special closure or key segment.
Caisson Shaft Rings
A range of standard one piece and segmental units is available for the fast and simple construction of small diameter shafts. The units bolt together vertically to form a finished lining.
Simply the best for construction underground.
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