| In recent years,there have been many malignant accidents of ship collision,and the ship collision bridge has attracted more and more attention from the traffic industry.It is clear that new navigation bridges must be improved,and the bridge anti-collision facilities should be set up according to the regulations.As a new field,bridge collision prevention is a new field.At present,the technical level of bridge collision prevention field can not meet the urgent needs of the traffic industry.Solving the contradiction between bridge construction and navigation of ships is of great significance for protecting people’s life and property safety,maintaining social stability and realizing safe transportation.The water level of mountainous rivers under the condition of large span bridge luffing anti-collision device development there are still many technical bottlenecks: the arch bridge as the main bridge in the mountainous areas of the river,the demand of large span arch bridge anti-collision device is extremely huge.1.In the process of construction and later operation and maintenance of Wanzhou Yangtze River Highway Bridge,there are many aspects to be optimized.In this paper,the layout of the anti-collision device,the structure of the anti-collision belt,the structure of the buoy and the structure of the guide well are optimized.2.The arch anti-collision self floating water lifting device layout optimization in large water level conditions,the optimized arch collision self floating water lifting device applied to arch bridge,when in the low water level can increase the width of navigable,applied to regional protection,can rise or fall along the river slope.The collision self floating water lifting device with double arch anti-collision optimization,far to three steel structure surface is flat,the external side is an arc shape,the form of collision with the river can withstand the impact of increasing the resistance,to prevent the collision with the lifting under the impact of the water was too large.The guide well is optimized to guide ramp,and the guide ramp can be used on the same slope with the river bank.Aiming at the optimization of the buoy of the arch self floating anti collision device,the buoy can be adapted to the guide ramp and can move freely in the guide ramp.3.Meanwhile,the ancillary structure of the arch self floating water lifting and collision protection device is optimized,and the automatic sprinkling system is added to make the arch self floating water lifting and collision avoidance device able to run better. |