Bit exchange technology "Sunrise Bit Method"

Bit exchange technology for shield machines in long-distance and composite ground.

The "Sunrise Bit Method" is a technology used in shield construction that allows for the safe and efficient remote exchange of cutter bits during ultra-long-distance excavation, in complex ground conditions where bedrock appears, in ground with continuous large boulders, or in ground where ground improvement is difficult. It is equipped with a rotating body that has multiple cutter bits within the spokes of the shield machine. The exchange is performed by rotating it with hydraulic jacks. 【Advantages】 ■ Cutter bits can be exchanged safely without negatively impacting the construction schedule. ■ Exchanges can be performed in environments where human entry is not possible, such as when ground improvement is not feasible or under high water pressure. ■ It is also possible to differentiate between dedicated bits for direct cutting of temporary walls at the start of shield machine operation and for cutting obstacles. *For more details, please download the PDF or contact us.

Ground foundation construction method