response to allegations dent from the YHT tunnel TCDD: Republic of Turkey State Railways (TCDD), Ankara-Istanbul High Speed Train (YHT) line project second stage covered in Bilecik "T26 tunnel that dent" allegations of fact reflect that and it YHT reported that it did not prevent the opening of the line.
In the statement made by TCDD, as suggested in some media outlets, the tunnel named “TBM” of the contractor firm in the second phase of the Ankara-İstanbul YHT line project in the second phase of the Ankara-İstanbul YHT line project, as it is suggested in some media outlets. It is stated that the work started with the machine in June 26.
The progress of the tunnel boring machine was stopped in a safe environment due to loose ground, the statement said:
“The progress of the 'TBM' machine started to delay the project due to the loose ground self-compacting around the tunnel after a 20-meter advance in the tunnel. The progression of the TBM machine was stopped at a safe point to re-examine the tunnel zone causing the delay. In order to continue the project and overcome the problem, construction of a new bypass tunnel with a length of 2 thousand 530 meters has been started and completed. Allegations of a dent in the T26 tunnel in some news sources do not reflect the truth. The T26 tunnel does not prevent the opening of the Ankara-Istanbul YHT line. In this context, due to the difficulties encountered in opening the tunnel and regional problems, TCDD examined the works on site with a delegation of ITU advisor faculty members, firm consultants and TCDD experts. While the YHT line route is being changed due to the loose ground, work is ongoing.