SRS have successfully worked and delivered on time projects all over the world. With expertise in OLE where we have 100+ years combined experience.
SRS SUCCESS STORIES:
The Mecca Metro, officially the Al Mashaaer Al Mugaddassah Metro, is a twin track 18.1 km elevated metro under construction in the city of Mecca. The metro will transport pilgrims between the holy sites in Mecca, Mount Arafat, Muzdalifa and Mina to reduce congestion during the Hajj. The Saudis estimate that it will replace 53,000 busses promising a safer, more comfortable pilgrimage. The project includes a depot with 12 electrified tracks.
The metro was scheduled to open on 13th November 2010, in time for the Hajj starting soon afterwards. The line is elevated at a height varying between 8m and 10m. It is designed to carry up to 72,000 passengers/ hour/direction. China Railway Construction Corp, has constructed the infrastructure. Siemens will provide the power supply. The first train set was shipped from China in May 2010 and the last is due to arrive by the end of 2010. In July 2010 Siemens asked SRS Rail System Limited to provide 4 road rail vehicles with 11 overhead linesman/operators for deployment to the project. Additional oil coolers were fitted to the vehicles, 3 access vehicles, one with a scissors lift platform and two with boom lifts, and a specialist double drum carrying wiring unit. These were deployed to the docks within a week. Shipping took 3 weeks.
All staff were on the ground within 2 weeks of contract signing. They started work on the installation of the overhead line system immediately, using equipment already in Saudi Arabia, while waiting for their vehicles to arrive. Two teams tackled the task, one working during the day, the second at night.
SRS Rail System Limited is working hard in Sweden.
At Sundsvall, about 200km north of Stockholm, SRS are operating two road rail double drum carrier specialist wiring units for VR Track, who are also operating 2 road rail boom lift access platforms hired from SRS Rail System Limited. A fifth road rail vehicle carrying a boom lift access platform is at work north of the Arctic Circle. One wiring unit incorporates an HMF crane. It can be used both to transport and erect stanchions and portals and, with drum carriers mounted, to run overhead wire. A further two road rail vehicles carrying boom lift access platforms together with a supervisor fitter, 5 linesman-operators, a van and spares are deploying to Sundsvall over the weekend 9/10 October. They will be working 7 days a week on 12 hour shifts installing stanchions, portal booms and overhead wire.
650KM OF OVERHEAD LINE RENEWAL
- 53 SRS road rail vehicles used
- 400 mile work site
- On board pantograph to check wire position
- In use 7 hours a night 5-6 nights a week
Renewal of overhead line infrastructure on 650km of the west coast main line. 53 SRS road rail trucks were purchased for this task. Their performance is best described by the Joint Venture Project Director, John Osborne. As this major project neared its end in 2005, he wrote:
"Road rail vehicles converted from standard trucks provided a versatile and effective means of servicing a work site 400 miles long. The man basket allows work teams to adjust overhead lines in perfect safety, using the on board pantograph as necessary for checking wire position. Created to the project's own bespoke requirements, some 53 are in use on an overage of seven hours o night, five or six nights a week"
And: "Their ability to work in awkward and otherwise inaccessible locations has been invaluable and some 53 of these priceless machines are in use. Reliability is also excellent: the vehicles are in use seven hours a night, five or six nights a week (actually on site and driving to and from site) and have performed 368,000 hours since the project started"
DRILLING IN SALTVVOOD TUNNEL
- SRS design bespoke 7 station drilling rig in
- 2,300 holes, 35mm diameter, up to 1,000mm deep
- 105 holes per hour
- Interlocks prevent drilling while moving
Saltwood Tunnel lies on the main rail route to the Channel Tunnel crossing near Folkestone. The tunnel had to be strengthened as part of the preparation for the Channel Tunnel Rail Route, but it carried a very busy piece of railway with twin "third rail" tracks into Dollands Moor Sidings. The tunnel could only be made available for engineering work once a week for 5 hours, with occasional longer track possessions. The task consisted of drilling about 2,300 holes through brick lining of variable quality to enable the injection of grout behind. Lath hole was 35mm in diameter and between 700 and 1,000mm deep. Two arrays of holes at 2,500mm centers were required. The tunnel was 954 yards long. As is so often the case, time was extremely short. It was essential to mount the track as soon as the last train had passed, to move quickly to the site and to drill the holes quickly. SRS Rail System Ltd designed a special 7 station drilling rig. The rig was mounted on an SRS 25 tonne road rail vehicle. Interlocks ensured that the vehicle was stationary before the drills were deployed and that the drills were withdrawn before the vehicle could move.
The crew were highly trained and a 6 minute cycle lime was developed: drill 7 holes — move — drill 7 holes — move — etc. This was gradually reduced to a best time of 4 minutes, some 105 holes per hour. ASTRAL rubber road rail access platform was constructed 200 meters from the west portal of the tunnel. Here the vehicle could mount the track in about 5 minutes, drive to the work site in an average of 10 minutes and deploy the drills in I minute, a total of 16 minutes. Recovery was similar.
AIRDRIE TO BATHGATE
- £200m project
- SRS carry and erect stanchions
- SRS run catenary and contact wires
- Special wire guidance pulley
Balfour Bteatty's share of this £200 million project to complete a twin track electrified link between Edinburgh and Glasgow included the construction of new double track between Bathgate and Drumgelloch stations and doubling the single line from Drumgelloch and Airdrie.
Most of the steelwork for the overhead line equipment was moved to site and lifted into position using Iwo SRS road rail Lorries. Typically, these were loaded with 18 stanchions of the Ratho yard and driven to the road rail access point in advance of the possession.
As soon as this had been taken, they were driven to the worksite by rail. The stanchions protruded over the rear of the vehicles so HMF 2120 canes were mounted at the front of the vehicles to assist with off-loading and lifting into position on site.
Using SRS road rail equipment and operators an overhead line team can the contact wires. A pair of hydraulically powered cable drums dispensed contact wire from the deck of a 25 tonne road roil lorry towing on SRS trailer carrying additional drums of cable. An HMF 2010 crane changed the drums when they were empty.
As second road rail truck on the adjacent track carried two linesmen on an elevated 350 kg wok platform which was fitted with a special wire guidance pulley. The platform can rise up to 12 meters and withstand a maximum radial load of 2kN. The same team ran the catenary wire in a similar manner. For the return conductor a set of temporary pulleys was fixed to the rear of the stanchions. A pulling wire was run through these from a hydraulically powered cable drum on the back of an SRS lorry at one end of the site. The far end of the cable was fastened to the end of the return conductor wire which was mounted on a second braked drum carrier on another road rail thick. The return conductor wire was then winched into position so that the linesmen could clip it up and remove the temporary pulleys.
SRS believe in building long term partnerships with our clients and customers.
- We always strive to deliver on time
- We never make promises that we cannot deliver
- Constantly pushing to go the extra mile, going above and beyond whats expected of us
- We adopt an organized and robust approach to all new, and ongoing projects.
- Safety is at the forefront of our minds when carrying out any work or delivering any task