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Northern Railway revamps the washable apron on Platform No.14 at New Delhi Railway station & washable apron on Platform Line No.6 at Old Delhi railway station Improve the cleanliness and beneficial to the environment

[avatar user=”Rajendra Yadav” size=”thumbnail” align=”left”]by rajendra yadav[/avatar]

 

Sh. Ashutosh Gangal , General Manager Northern  Railway informed that the washable apron on platform no.14 at New Delhi station & washable apron of platform no. 6 at Old Delhi Railway station had broken in due course of time. At New Delhi, all existing sleepers were getting embedded in the RCC slab and due to stagnation of water along the platform, the rail near to PF was getting corroded. Rebuilding of washable apron on PF.No.14 at New Delhi Yard has been taken up in a block period of 60 days from 04.06.2020 to 02.08.2020 and engine trial was successfully completed on 2nd of August 2020.

Track on the washable apron was dismantled after barricading the area followed by complete dismantling of existing washable apron. This included the apron concrete and base raft of RCC. Work of rebuilding of washable apron was taken up along with simultaneous removal of all construction debris.

 

Working in New Delhi is a challenge on account of many bottleneck being faced during execution of work. Some of the constraints encountered during execution are elaborated below:

  • Access to the platform was available only from one end (Ajmeri Gate side). Therefore movement of all machinery for removal of debris, transport of construction material and other equipment’s is available from one end only, which hampered the progress of work.
  • The pathway to Platforms, is frequently occupied by loco of the departing train or last coach of the arrived train and this disconnects the entry / exit to PF’s hampering execution of work.
  • PF being island, only half width of the Platform is available for execution of work.
  • The pathway leading to various platforms at NDLS yard are also used by parcel hand trolleys, golf carts etc. and movement of these are very frequent during morning hours and evening hours. Which also create hindrance in execution of work.
  • Movement of diesel vehicle and commercial vehicles is banned in Delhi during day time from 5 AM to 11 PM, therefore movement of transit mixer for RMC and commercial vehicle for disposal of construction debris is available during night hours only. This also restricts execution of work.
  • From 11 PM to 5 AM when ban on commercial vehicle is lifted at this time only, concreting work can be carried out.
  • Width of platforms is narrow at both the ends and on island platform only half of this width is available for work. This creates constraints in movement of transport.
  • Transit Mixers cannot travel up to platforms due to restrictions on account of narrow pathway and OHE, this requires rehandling of concrete.

also read: Northern Railway plans to run special freight train ‘Garland Train’ to increase Rail Freight

Firstly, the existing washable apron i.e. RCC and base slab were dismantled and a base course of PCC as per approved washable apron drawing. Malba removal activity was also carried out simultaneously in order to complete the work within block period. After laying the base course for new washable apron, longitudinal and transverse reinforcements and partly casted sleepers were placed. To ensure correct alignment of the track, both horizontal and vertical, jigs and fixture were procured and used. Jigs and fixtures facilitate lifting of track in suspended position along with the fabricated cage of reinforcement, to the correct alignment both horizontal and vertical. Once the track geometry was corrected, concrete was placed and the top layer of RCC casted. These Jigs and fixtures are used in Delhi Metro for laying of BLT and have proved to be very effective in maintaining alignment of track during casting of BLT. Proper Curing has been ensured. Curing was done by ponding the entire surface area of the laid concrete. The successful trial of engine on Washable apron on PF line no 14 was completed. The biggest challenge faced during the block period was the arrangement of labour due to COVID-19 pandemic. The work was carried out in day & night shifts with the available machinery, manpower and resources. Generally, during the night time i.e. from 11 PM to 5 AM there is heavy rush of passengers trains in New Delhi yard and during these rush hours movement of trucks/ transit mixers within New Delhi yard is restricted affecting the progress of work. However the advantage of suspension of Rail traffic due to COVID -19 was taken to complete the work within block time. New Delhi yard being a major yard, there was restriction on critical activities like Malba removal, concreting, movement of machinery etc. Movement of diesel vehicle and commercial vehicles is banned in Delhi during day time from 5 AM to 11 PM, therefore, movement of transit mixer for RMC and commercial vehicle for disposal of construction debris was available during night hours only.

 

There is heavy passenger traffic at New Delhi railway station due to coaching movement and it is difficult to get block without affecting passenger traffic. Taking advantage of COVID lockdown period, this important safety work has been completed. It will also improves the cleanliness and was beneficial to environment.

Revamp of washable apron on Platform Line No.6 at Old Delhi railway station

 

The washable apron of platform no. 6 at Old Delhi Railway station also  had broken in due course of time. Taking advantage of less no. of passenger trains from Old Delhi station, at present, Railway took up important safety work of revamp of this washable apron and completed the work in 45 days.

Working in Delhi Yard was a big challenge on account of many bottleneck being faced during execution of work:

Access to the platform was available only from one end (Shahdara end). Therefore movement of all machinery for removal of debris transport of construction material and other equipment’s is available from one end only, which hampered the progress of work.

The pathway leading to various platforms at DLI yard are also used by parcel hand trolleys, golf carts etc. and movement of these are very frequent during morning hours and evening hours this also create hindrance in execution of work.

Movement of diesel vehicle and commercial vehicles is banned in Delhi during day time from 5 AM to 11 PM, therefore movement of transit mixer for RMC and commercial vehicle for disposal of construction debris is available during night hours only. This also restricts execution of work.

From 11 PM to 5 AM when ban on commercial vehicle is lifted at this time only, concreting work can be carried out.

Transits Mixers cannot travel up to platforms due to restrictions on account of narrow pathway and OHE, this requires re handling of concrete.

Sh. Ashutosh Gangal said that the biggest challenge faced during the block period was typical site condition at Delhi and the arrangement of man and machines. The work was carried out day & night shifts with the available machinery, man power and resources. Generally, during the night time i.e. from 11 PM to 5 AM there is heavy rush of passengers trains in Delhi yard and during these rush hours movement of trucks / transit mixers within Delhi yard is restricted affecting the progress of work. However the advantage of suspension of Rail traffic due to COVID -19 was taken to complete the work within block time. He further said that it would also improve the cleanliness and was beneficial to the environment.

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