2results about How to "Guaranteed normal navigation" patented technology

The application discloses a self-anchoring structure for integral lifting of a steel box girder, comprising a bridge tower and a constructed steel box girder, wherein the bridge tower is provided with a ring-shaped self-anchoring support body, the bottom of the bridge tower is provided with a support bottom embedded steel plate, the ring-shaped self-anchoring support body is connected with the support bottom embedded steel plate and the constructed steel box girder, the top of the constructed steel box girder is provided with a self-anchoring truss, and the end of the self-anchoring truss towards a mounting surface is provided with lifting equipment. The application further discloses a self-anchoring method for integral lifting of a steel box girder, and the steps are as follows: 1, fixing the support bottom embedded steel plate at the bottom of the bridge tower; 2, installing the ring-shaped self-anchoring support body; 3, hoisting the prefabricated steel box girder in situ, and welding adjacent prefabricated steel box girders to make them into the constructed steel box girder; 4, installing the steel box girder inner support circular pipe and the self-anchoring truss on the constructed steel box girder; and 5, installing the steel box girder to be hoisted. The application can economically and rationally lift the steel box girder to a specified position, and can be widely applied in the field of building construction steel structure installation.

This utility model relates to the field of water conservancy engineering technology, specifically to a water conservancy hub structure, including an upstream reservoir and a downstream river channel. The upstream reservoir and the downstream river channel are connected by an intermediate channel, which includes a first tributary channel and a second tributary channel. The upstream of the first tributary channel and the upstream of the second tributary channel are connected to form a diversion point. The downstream of the first tributary channel flows into the downstream river channel. A ship lift is located at the confluence between the first tributary channel and the downstream river channel. A water-retaining overflow dam is located downstream of the second tributary channel. This utility model designs the intermediate channel as two tributary channels to divert water flow, with the upstream of the two tributary channels connected to form a diversion point. Water can flow into the two tributary channels separately. When passing through the diversion point, the flow velocity and impact force are reduced by the second tributary channel and the water-retaining overflow dam, greatly reducing the impact of the water flow on the ship lift and ensuring the normal operation of the ship lift and the normal navigation of the waterway.