2results about How to "Shallow draft" patented technology

The utility model discloses a kind of dredging and transporting tugboats for water conservancy project, including bucket structure, the bucket structure is provided with two, traction rope is installed between two the bucket structure, the head of the traction rope meets the tail;Support device, the support device is installed between two the bucket structure, hull, the hull is elastically installed by the support device;The most core advantage of the utility model is in that the cooperation design of closed loop traction rope and hollow shaft tube with head meeting tail is adopted.This makes the tugboat in operation without needing to carry out any steering operation, i.e. can receive traction from any end.In narrow, serpentine river, this design completely solves the pain point of traditional tugboat steering difficult, time-consuming, realizes "with tow with go", and the round trip operation efficiency is improved several times.

The application relates to a floatation assisting structure for reducing the draught of a immersed tube segment and a mounting method thereof. The floatation assisting structure for reducing the draught of the immersed tube segment comprises float boxes arranged symmetrically on two sides and connected by a bottom support. Under the action of the buoyancy of the float boxes on the two sides, the bottom support can lift the immersed tube segment upwards, so that the immersed tube segment can have a shallower draught during floatation, the immersed tube segment has a shallower draught, the excavation depth of a long-distance shallow and narrow waterway can be reduced, the engineering quantity is smaller, the construction period is shorter, and the cost is lower; the influence of the excavation of the waterway on existing buildings and structures is reduced, and the influence on the ecological environment in the waterway range is smaller. The risk of grounding during the tide passing in the window period is smaller, and in some places where the water depth meets the demand, the tide passing in the window period is not needed, so that the conditions for floatation of the immersed tube segment are easier to meet.