Date: May 2021

Location: Luohu District, Shenzhen

Equipment: 3500mm micro tunnel boring machine

Features: curved pipe jacking, complex geology

many surrounding buildings,  underpass municipal road

Significance：The curved pipe jacking section of the 220kV double circuit line project in Luohu District, Shenzhen is 389.9 meters in length, which is difficult to construct. The successful completion of the project has made significant contributions to the development of Luohu District.