Faced with the strategic needs of marine power, the company’s independently developed large-  scale bridge construction cutter suction robot and auxiliary operation common centralized lifting platform successfully overcome the difficulty of air suction dredgers being unable to suck mud in silty clay soil.  The blind area soil extraction technology fills the domestic gap, achieving efficient and accurate soil  extraction in the borehole, with a soil extraction efficiency of 4-6 times higher than traditional operations,  ensuring visible, measurable, and controllable subsidence during the safe construction of open caisson.