TUNNELLING SLOWED
First Walls Poured Excavation of the Lyttelton road tunnel has been slowed in the last week by Mechanical troubles with spoil loaders. The contractors, FletcherKaiser, have three machines for loading spoil on to dumpers inside the tunnel, but the largest and most efficient of these is out of action because of the lack of engine parts. These have to be imported from Australia and are expected to arrive in the next day or two. So in the last week about 120 ft of 'unnel was cut out instead of the normal excavation which has been up to 175 ft a week.
Concrete work, however, has been pushed ahead and the curbing along both sides of the funnel floor has reached the half-way mark, not far behind the tunnellers. On Tuesday 178 yards of concrete were poured in these and in the first of the tunnel walls at the Heathcote entrance. These extend outside the tunnel at present, but when the arch roof is poured in June this exposed length will be back-filled. The arch form for the roof of the tunnel will arrive from Britain in May.
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Bibliographic details
Press, Volume CI, Issue 29778, 22 March 1962, Page 15
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189TUNNELLING SLOWED Press, Volume CI, Issue 29778, 22 March 1962, Page 15
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