China's First Underground Parking Lot Pilot Project Utilizing Pipe Jacking Method

The project features the use of a rectangular pipe jacking machine to construct an underground parking lot in a densely built‑up area. The construction utilized a combined rectangular pipe jacking machine independently developed by CREG. Each unit has an excavation size of 2.87m ×5.02m, while the combined configuration expands it to 5.74m ×5.02m. This versatility allows for both single‑unit and combined advancement methods. Ultimately, the project successfully excavated a total underground parking area of 3,267 square meters.

Project Background

This is a new‑type construction concept for underground parking lots. It addresses the problems of the open‑cut method, such as significant environmental damage, adverse impacts on traffic and disruptions to residents' lives, and provides a more environmentally friendly, safer, and more efficient construction method. It is conducive to solving the construction challenges of underground projects such as parking lots in older urban areas.

Schematic diagram of underground parking lot project in CREG headquarters, Zhengzhou.

Commissioning preparation for the machine before launching.

Underground parking lot after completion.