All 9 products from China Railway Construction Heavy Industry Corporation Limited (CRCHI).

Direct pipe laying machines utilize a trenchless construction method for installing pipelines. This method allows for simultaneous excavation and pipeline laying.

The pipe roofing machine employs trenchless construction technology to pre-support soil around a tunnel face. By building pipe roofs, it ensures safe excavation, particularly when tunneling under existing infrastructure.

Rectangular pipe jacking machines are increasingly used in municipal applications because of their adaptability to soft soils and shallow overburdens. These machines also provide higher space utilization compared to conventional circular pipe jacking machines.

Slurry balance pipe jacking machines are designed for microtunneling in various ground conditions, including silt, sand, and rock. They are used for constructing urban cable tunnels, water supply and drainage tunnels, and gas pipelines.

Double shield TBMs ensure efficient and safe tunneling in various rock conditions. These machines combine the functions of open-type gripper TBMs and single shield TBMs, enabling simultaneous segment installation and excavation in stable rock.

This single shield TBM is designed for tunneling in complex rock conditions, including uneven stratum and fracture zones. It utilizes segmental lining for rock support and is propelled forward by thrust cylinders.

Open-type gripper TBMs are optimal for tunneling in tough hard rock. They are used in the construction of water conservancy tunnels, hydro-power tunnels, rail tunnels, and urban rail transit systems.

Slurry TBMs ensure tunneling in heterogeneous ground with high water permeability and groundwater pressure. They are used for constructing metro systems, highway tunnels, and water diversion tunnels.

Tunnel boring machines bore through soft soils, gravel, and rock. They are used for constructing utility, rail, highway, and metro system tunnels.