Tunnel construction
 

Since its establishment, the company has been committed to providing high-quality shield machines/TBMs for various tunnel construction projects such as urban rail transit, urban comprehensive pipeline corridors, hydraulic tunnels, mountain tunnels and so on, and the equipments produced by the company have achieved excellent results in various tunnel construction projects in Changsha, Shenzhen, Guangzhou, Dongguan, Kunming and other regions.

In order to continue to plough into the field of tunnel construction and provide customers with more comprehensive services by taking advantage of its position as a professional manufacturer of tunnel boring machines, Hunan CRSH, a wholly-owned subsidiary of the company, has entered into the field of tunnel boring construction and obtained the qualification of general contracting for municipal construction, which is mainly engaged in the professional contracting, equipment leasing, technical services, expansion of subcontracting, and contracting for the construction of various types of tunnels, such as urban rail transit, urban comprehensive pipe corridors, hydraulic tunnels, mountain tunnels, pipe jacking, and so on. Leasing, technical services, expansion of subcontracting, labor subcontracting and other businesses. The company has carried out professional construction contracting in Changsha Wanjiali Electricity Corridor, Dongguan Metro, Shenzhen Metro and other projects.

The company has its own mud and water, soil pressure, double-mode, TBM and other types of tunnel boring machine nearly 20 sets, 25T, 45T, 60T each tonnage of new energy battery car grouping 16 columns, 25T, 45T, 50T, 60T each tonnage of gantry cranes 14 sets of four sets of continuous belt conveyor, as well as the slurry mixing station, forklift, generator, tunnel fans, tracks, sleepers, high-voltage cables, aisle boards, water pipes and other types of construction equipment and a full set of equipment and services. The company has 5 first-class construction engineers.

The company has 5 first-class constructors, 10 second-class constructors, 4 senior engineers, 12 engineers, more than 30 assistant engineers, 10 people with more than 10 years of experience in shield construction, more than 5 years of experience in shield construction, more than 30 people, the company's construction team of professionals totaling more than 150 people, of which there are 5 people with a master's degree, 67 people with bachelor's degree, 32 people with a specialist degree.