The rectangular pipe jacking machine adopts the combination form of parallel shaft and multi cutter head, which has the characteristics of simple, reliable and economical structure, large cutting rate, good slag mixing rate and easy settlement control. It is suitable for construction in various complex strata such as clay, silt, silty sandy soil and sandy pebbles. It has the advantages of high space utilization, low requirements for covering soil thickness, small stratum disturbance, one-time tunnel forming, etc. It is mainly used for the construction of underground passages, subway entrances and exits, underground comprehensive pipe corridors and other underground engineering projects.
