Recently, the Podgorica (Pajkov Vir) tunnel of the North-South Expressway in the Republic of Montenegro was successfully completed, and Montenegro National Television made a special report on the tunnel construction of XCMG XTR260 cantilever roadheader.

       It is reported that the North-South Expressway in Montenegro is an important cooperation project between China and Central and Eastern European countries. The highway connects the southern city of Bar in the Republic of Montenegro and the northern city of Boljare. It is the first expressway in the country. It is of great significance to drive the overall economic development of the Republic of Montenegro to enter the international road transportation network and connect many countries in central Europe.

       On the evening of July 7 local time, Premier Li Keqiang met with Prime Minister Markovic of Montenegro at the hotel where he stayed in Sofia. Photo by Xinhua News Agency reporter Ding Haitao

       During the construction of the project, the governments of the two countries were very concerned about the progress of the project. On the evening of July 7, 2018, Premier Li Keqiang met with Prime Minister Markovic of Montenegro in Sofia, the capital of Bulgaria. He pointed out that the North-South Expressway of Montenegro is a flagship project of practical cooperation between the two countries It is hoped that the two sides will meet each other halfway, speed up the construction progress, and set an example for the cooperation of large projects between the two countries.

Prime Minister Djukanovic of Montenegro inspects the construction site of the North-South Expressway Tunnel

        The President of the Republic of Montenegro Djukanovic, the Minister of Communications of the Republic of Montenegro, Cui Zhiwei, the Chinese ambassador to the Republic of Montenegro, and the National Technical Committee of Montenegro have all visited the construction site and spoke highly of the construction of the roadheader. A special report was made.

Chinese Ambassador to Montenegro Cui Zhiwei inspected the construction site of the Jabuka Tunnel on the North-South Expressway and learned about the use of XCMG XTR260 cantilever tunnel boring machines

        Tunnels in the European market generally adopt mechanized construction, and manual drilling and blasting excavation and support techniques have long been eliminated. Traditional construction techniques cannot meet the occupational health, safety, and environmental protection requirements of European tunnel construction. After many discussions and repeated studies, the project department of Heishan North-South Expressway finally selected XCMG XTR260 cantilever tunnel boring machine for tunnel excavation. The fourth section of XTR260 cantilever roadheader construction is undertaken by China Communications Tunnel Bureau. It is located in Kolasin (Kolasin) in the northern part of Montenegro. The total length of the line is 9.066 kilometers.It is a two-lane 4-lane road with a bridge-tunnel ratio of 72% and a tunnel ratio of 50%.

Montenegro National Television conducted an exclusive interview and report on the construction of XTR260 cantilever tunnel boring machine

        A few days ago, the right and left tunnels of the Podgorica (Pajkov Vir) tunnel on the North-South Expressway in Montenegro were successively penetrated. The tunnel is a flysch surrounding rock formation with well-developed bedding and shallow buried bias. XCMG XTR260 cantilever type was used in the construction The mechanized operation of the roadheader is the sixth and the fourth tunnel that XTR260 participated in the construction of the Heishan North-South Expressway project.

XCMG roadheader participates in the construction of Heishan North-South Expressway

        Most of the fourth section of the Heishan North-South Expressway Project is flysch, and the maximum compressive strength of the rock is about 50Mpa. At present, the progress index achieved by XCMG XTR260 is an average of 0.8 to 1.5m/h for the upper steps. Preliminary estimates can save the construction period by 9 months.

On August 26, 2017, the Jabuka Tunnel of the North-South Expressway in the Republic of Montenegro was successfully completed

       Due to the complicated blasting procedure in Heishan, which must be operated by local gunners, the progress of other tenders has been seriously hindered. The XCMG cantilever roadheader does not need to use explosives, which reduces safety risks and schedule risks; the equipment can be completed by only 2 people For all operations, 13 workers can be reduced per shift for single-hole excavation; the cantilever roadheader also greatly reduces the surrounding rock disturbance, and the average linear overbreak can be reduced from the traditional 20cm to about 5cm. According to statistics, this alone is enough Savings in sprayed concrete costs of about 350 Euro per linear meter.

XCMG XTR260 became the "North-South Expressway Star Machinery" in the Republic of Montenegro

        It was declared by the Heishan North-South Expressway Project Department of China Communications Tunnel Engineering Bureau, and the general contractor China Road and Bridge Heishan North-South Expressway Project General Manager Department organized inspection and evaluation. XCMG XTR260 cantilever tunnel boring machine was evaluated for its "leading technology, reliable quality, and gold medal service" It is "North-South Expressway Star Machinery".