Newbridge
Wards River
Geoscience Australia. Crown Copyright ©.
Newbridge incident - 5 May 2010
The work planned for Newbridge on 5 May 2010 comprised reclamation of used rail. The work was to be undertaken at the 270.512 km mark and included cutting the reclaimed rail into manageable lengths with oxyacetylene equipment and then transferring the sections from the north side of the track to the south side of the track (Figure 2) for collection and removal by truck.
Figure 2: Worksite layout
270.500 km post
Point of impact
Cut lengths of rail for collection
Long lengths of reclaimed rail
Direction of travel for XPT passenger train
The work group for this task consisted of a Protection Officer (PO), a ‘hot-work’ labourer (an employee qualified for cutting rail using oxyacetylene equipment) and an excavator operator. The hot-work labourer was to be responsible for cutting the long rail lengths while the excavator operator worked a track-mounted excavator and transferred the cut sections to the south side of the track. While the cut and un-cut rail lengths were located outside the ‘danger zone’10, the hot-work labourer and excavator would need to occupy the danger zone while the work was undertaken.
T
Figure 3: Komatsu excavator
he excavator, a Komatsu PC40MR-2 (similar to Figure 3), was used to transfer the cut rail lengths to the south side of the track for collection and removal. The excavator had an operating weight of 4.79 t and was fitted with small, hydraulically retractable rail wheels enabling it to mount and operate on the track when required. The (rated) maximum speed of the excavator while on track was 4.6 km/h. The excavator had been parked on the north side of the track (right-hand side of the track in the direction of travel of train WT27), having been left there from previous work. At the completion of the task it was intended to transfer the excavator back to the Bathurst depot by the truck that was being utilised at the worksite.
Share with your friends: |