A Study On The Efficacy Of Aids In The Preferred Channel Of Qinhuangdao Port

Aids of Qinhuangdao port is an important way for navigation, with the development of the city with some earlier construction, there are some new buildings near the aids, and also have the impact of beacon navigation performance.As Qinhuangdao Port's economic development its main channel beacon growing number of nearby buildings, particularly the recent plan to build a tall building. In order to study its main channel guide Qinhuangdao navigation performance of the subject, this article on the performance of building structures beacon summary of the various factors were analyzed through visual beacon width factors, background factors beacon, beacon shielding factors specific indicators and calculation methods, with examples for a comprehensive operational analysis, concluded that the Qinhuangdao Port Main Channel beacon performance of nearby buildings on the specific impact and construction suitability, and proposed the corresponding remedies. The main conclusions are as follows:1. The main channel beacon in Qinhuangdao Port is important to safety of the ship through the main channel, the length of the existing navigation, the pass as the zone width of about 306m; navigation 500m length of extension under the conditions, visible zone width of about 314m; Navigation extend the length of 1000m conditions, visible zone width of about 320m; extend the length of 2000m under the conditions of navigation, communication, as the zone width of about 356m;The result of view width can be used in further analysis of the aids in Qinhuangdao port. 2. Instance, the building construction program near the Qinhuangdao Port Main Channel will lead a serious impact on performance standard, not suitable for construction. The program takes up a large number of beacon pass as the width of the formation of a complex beacon background, directly affect the safety of the main channel and out of the ship; the program marked the formation of the West behind the big blind range, and close to the western route and the intersection of the main channel, direct Turn into the main impact of Western Fairway navigation safety of the ship channel.3. Instance, the second building construction program near Qinhuangdao Port Main Channel will have minimal impact, effective measures in the construction phase, the ship guided navigation facilities integrated use of the premise, can protect the safety of navigation, suitable for building. This program is only to extend the 2000m distance in case of navigation, taking up 3.3 m, as the beacon through the width of negligible influence in the area; the program guide the formation of relatively simple standard background, no background caused confusion in the daytime, but at night should be strictly controlled buildings outside the application of high-intensity spotlights; the program marked the formation of the West behind the small blind area, and from the Western Channel and the intersection of the main channel will not affect the West, turned into the main channel of navigation safety of the ship channel.