Employer: National Railway Infrastructure Company (NRIC), Bulgaria
Period: November 2008 – September 2010
Project goals:
Permanent solutions to problems with gauge, weak foundation, structural damage from compromised waterproofing.
Scope of the project:
Transgeo was responsible for the overall management of the designing works as a subcontractor in Consortium RVP Koehne – Eurotransproject - ThyssenKrupp for designing works in an engineering contract. Transgeo carried out the following activities in the scope of each of the project’s stages:
Highlights:
Stage I - Analysis
- Full geodetic measurement of the profile of the tunnel and the adjacent facilities (railway track, catenary, safety niches);
- Gauge analysis and railway design - implementation of an innovative ballast-free construction for the railway track (Y steel sleepers onto asphalt-concrete basis);
- Geodetic activities providing three-shift operation mode;
- Author’s supervision and execution of an as-built documentation;
- Chainage and benchmarking of the track;
![](https://2.bp.blogspot.com/-_vQgTEZ-rZE/WldwQjErGBI/AAAAAAAAAq8/csSwPrN2lhwGYjXG2EKbls19Foe0H2YgwCLcBGAs/s200/DKM-1.jpg)
![](https://2.bp.blogspot.com/-FNRA1X_WF_Y/WldwSnG2lGI/AAAAAAAAArQ/kqI8fRNIn98pgosFCrjLwGrfZ8vBWaxPwCLcBGAs/s200/DKM-3.jpg)
![](https://1.bp.blogspot.com/-3pB3Z9IH9Zs/WldwSjjkqZI/AAAAAAAAArM/3Na1gZHU4DYhoj9G8ZovUxtimFrSN0W2ACLcBGAs/s200/DKM-4.jpg)
![](https://3.bp.blogspot.com/-X4F0f8CoUtE/WldwSvXykAI/AAAAAAAAArI/vxgaURpjs0YDv0m0saD-SJ36AwRrA4nQwCLcBGAs/s200/DKM-5.jpg)
![](https://1.bp.blogspot.com/-JfhjSK_Zq6k/WldwTfRe1-I/AAAAAAAAArU/6KP2u2r6uxY3vPIlEURHFSKOxTzSWQGkQCLcBGAs/s200/DKM-6.jpg)
![](https://2.bp.blogspot.com/-rG20a4Zb6K4/WldwQneK6KI/AAAAAAAAAq0/cgZ_RnbVIcAMDV1l1z7ctNcPM9wxMJlEACLcBGAs/s200/DKM-10.jpg)
![](https://2.bp.blogspot.com/-mqp_IHbsLLk/WldwQoQyZOI/AAAAAAAAAq4/DZ0p5GZve6wXS17PakbAeNh4lpOFr6g5QCLcBGAs/s200/DKM-11.jpg)