Timber heading is commonly used when there is a large number of services in the line of the pipe work preventing a traditional open cut method. The heading is constructed by hand using timber sets to support the excavation, the pipeline is fed through the tunnel by hand, installed and then packed with concrete.
Tunnelling & Timber Headings
Box Jacking
Box Jacking is a trenchless method of construction; it is well established means of engineering culverts or tunnels under road, rail embankments. Sub-Tech can provide the expertise to install such a custom structure, from building bespoke tunnelling shields & anti-drag systems & undertaking settlement design calculation through to installing the client’s custom tunnel
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17-19 Thames Road
Barking
London
IG11 OHN