Tunnel footage efficiency increased by 80%! STR260-6 helps Linda "high-speed" construction!

Linda Expressway Hunan Road and Bridge Project DepartmentPurchased from Sany Heavy Equipment on July 10, 2020STR260-6 TBMOne for the mechanized construction of the project tunnel.

Considering the construction efficiency and operation safety of the project, the project team chose the excavation method of the roadheader that had not been used before after an in-depth understanding of the Sany heavy roadheader products.

Sany Heavy Equipment's marketing and service personnel provide services throughout the process from equipment entry to the beginning of hole construction.useIt took 3 and a half days to complete the installation of the equipment in 5 days, saving crane rental costs for customers, and bringing benefits to customers earlier.

In addition, it is also equipped with service personnel to provide services on site, train and guide operators and mechanics, solve problems in the construction process in a timely manner, and provide customers with reasonable solutions.

The tunnel of this project is:The mudstone of about 20Mpa is constructed on the upper and lower steps, the upper step is 6.4m high, the lower step is 2.7m high, the cross-section is semicircular, and the cross-sectional area is 60 square meters. The STR260-6 equipment runs two shifts a day, and the construction time is about 14h.Average daily footage6m, with a monthly footage of 160 to 180m.

The project team said that it was in useAfter the STR260-6 roadheader, compared with the previous excavator with breaker construction method,Tunnel footage efficiency improved80%, saving more than 40% of concrete, which has brought considerable economic benefits to customers.

The quality of the Sany engineering roadheader is excellent, the operation is stable, the service personnel are serious and responsible, and the construction performance has never been affected by equipment failure, and the construction performance has far exceeded expectations, and has won the high recognition of the tunnel construction party, the project department and the owner.