7765 - Track Stabilisation (mini-piling) Lisduff
Iarnród Éireann (IÉ) has a requirement for a Civil/Structural Engineering contractor to carry out piling works along a section of track on the Dublin-Cork line. The location of the site is between 71mls 1735yds and 72mls 1560yds at Lisduff, Co. Tipperary This section of track is double line which serves passenger services between Dublin (Heuston Station) and Cork (Kent Station). The traffic along the section has a max speed of 90MPH.
The track bed has a soft peat formation which has resulted in problems with both vertical and horizontal track alignment. As a result of the poor track bed formation, a permanent 80mph speed restriction has been imposed on this stretch of 100mph line. Frequent tamping intervention is also required at this location to ensure that the track bed remains stable.
In order to address this issue, it is proposed to procure a solution to stabilise the track-bed that does not require the removal or lifting of the track and does not cause disruption of scheduled passenger services through the application of speed restrictions. Micro piling has been identified as the optimal solution to provide stabilisation and support to the track bed while at the same time requiring little or no disruption to operational services.
Please Upload all PQQ's through the Etenders Portal by12 Noon Friday 2nd July 2021.
Regards
Noel Coss
IE Proucurement