The largest cross-section rectangular pipe jacking machine developed by Komatsu and Shanghai Machinery Construction Co., Ltd. has successfully passed through the entrance and exit of No. 3 Pudian Station of Metro Line 6 Line.
The newly developed rectangular pipe jacking machine has the characteristics of large cross-section design, variability and asynchronous propulsion. At present, two technologies have obtained national patents. The cross-sectional size of the pipe jacking machine is .27m wide, 4.39m high, and the mainframe length is 5.2m.
The performance characteristics of the equipment are earth pressure balance type; it has good waterproof performance; it can be constructed in underground ground layer of ≤15 meters. Moreover, it is possible to realize the barrier-free construction of the subway pedestrian tunnel without digging the road surface, not relocating the pipeline, reducing noise and dust, etc., in line with the new requirements for environmentally friendly construction, and the success of the first sign indicates that Komatsu’s pipe jacking equipment is underground in Shanghai. There will also be a wider range of applications in space development.
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