Recently, the slurry balance pipe jacking machine, built by China Railway Construction Heavy Industry Group, was successfully completed and accepted in Changsha, Hunan. This milestone signifies the first entry of domestically produced pipe jacking machines into the Colombian market, further enhancing the global influence of Chinese equipment.
This slurry balance pipe jacking machine will be used for the municipal sewage treatment project in Bogotá, Colombia. The project spans approximately 2.1 kilometers, passing under the Bogotá River. It primarily traverses layers of sandy clay, clayey sand, and clay, with a tunnel roof depth ranging from 7 to 11 meters. The project faces engineering challenges such as poor stability in the geological layers, inefficient slurry removal in clay layers, limited space in small working shafts, and long single-drive distances.
To address these specific project characteristics, the research and development team at China Railway Construction Heavy Industry Group equipped the pipe jacking machine with several core proprietary technologies. For instance, the cutterhead features a small opening rate panel design, and the machine is powered by a high-speed, high-torque hydraulic drive system with a large flow circulation system, ensuring safe and efficient tunneling in complex geological conditions.
Currently, the machine is being disassembled and will be shipped to the construction site. After completing system assembly and commissioning, it will officially begin tunneling work. China Railway Construction Heavy Industry Group will continue to leverage its professional technical expertise, providing robust support for high-quality and safe tunneling in this project.
Adhering to the concept of “Space-Time for Technological Innovation”, China Railway Construction Heavy Industry Group has independently developed other pipeline construction equipment, including retractable pipe jacking machines, shield tunnel boring machines, rapid roof laying machines, and small-diameter tunnel boring machines, offering comprehensive intelligent technology and equipment for major global projects
Reference:https://www.cehome.com/news/20240204/307055.shtml
