Tunnel construction adopts ordinary underground excavation method.

Mining method: the construction method of tunnel and underground engineering is originally the method of mining roadway, so it is called mining method, and this method has a wide range of applications.

Shield method: commonly used in soft stratum.

Pipe jacking method: the main process of this method is carried out on the ground. When laying pipelines or setting tunnels, in order not to affect buildings and other engineering facilities on the ground, prefabricated pipe sections or box culverts are pushed forward with the help of excavators. This is the pipe jacking method This way is very effective in crossing obstacles such as streets and dams.

Mine tunnel method is a traditional construction method. Its basic principle is that after tunnel excavation, the rock mass is broken by blasting, forming a relaxed state and may collapse at any time. Based on the theory of relaxation load, the construction method is to excavate in blocks according to the division order, and it is required to support while excavating to ensure safety.

At present, the common construction techniques of underground excavation section of subway are full-face method, step method, CD method and CRD method. In the construction, the eight-character policy of "leading pipe, strict irrigation, short excavation, strong support, quick sealing and diligent survey" is followed.