Abstract：
The elevation of exterior heating pipeline no.1-2 segment tunnel on Nongzhan South Road of Beijing conflicts with the design structure of the planned Chaoyang Park Subway Station, so bearing platform crossing reserved subway station technique was adopted. A bearing platform under the heating pipeline trench and those simultaneously built under the platform included lattice column, pile foundation, enclosure pile for the main structure of station, vertical support and water-stop rotary spray pile. Smooth construction under the platform was guaranteed, satisfying the requirements for structural safety and normal operation and maintenance of the heating pipeline trench.
