What are the reasons for the frequent accidents of ships colliding with bridges?

What are the reasons for the frequent accidents of ships colliding with bridges?

Author: Q Ship Shipping Application Platform

Date: 20 17-08-08

There are many bridges in navigable waters, low construction standards of old bridges, weak drivers' safety awareness, large-scale inland ships, complicated navigation environment for seagoing ships entering the river, which are the main reasons for frequent ship collision accidents in Guangdong. To this end, Guangdong Maritime Safety Administration actively sums up experience, sorts out ideas and looks for solutions. Starting from June this year 1, Guangdong Maritime Safety Administration and Guangdong Provincial Department of Transportation will jointly carry out a one-year special rectification campaign to prevent ships from colliding with bridges and seek safety supervision for navigable bridges in key waters under their jurisdiction.

At present, there are frequent ship collisions in Guangdong, especially in flood season and typhoon season, which brings difficulties to the supervision of the bridge area. Since 20 15, there have been many accidents involving ships colliding with bridges within the jurisdiction of Guangdong Maritime Safety Administration, especially since this year, there have been frequent accidents involving small ships colliding with bridges, including some accidents with great influence. In order to effectively curb ship collision accidents and improve the level of water traffic safety supervision, Guangdong Maritime Safety Administration actively strengthens water traffic safety supervision on the one hand, and actively seeks countermeasures on the other. On April 14, Guangdong Maritime Safety Administration organized a special seminar on preventing ships from colliding with bridges in its jurisdiction, analyzed the causes and characteristics of preventing ships from colliding with bridges in recent three years, summarized the existing problems in preventing ships from colliding with bridges, and put forward targeted regulatory measures. From June this year 1, Guangdong Maritime Safety Administration and Guangdong Provincial Department of Transportation launched a one-year special rectification campaign to prevent ships from colliding with bridges. At present, this campaign is in the stage of warning education and hidden danger investigation.

In recent years, there have been many accidents in which ships collided with bridges. At 5 o'clock in June, 65438+May, 2007, the ship "Nanguiji 035" loaded with river sand deviated from the channel and collided with Jiujiang Bridge in Guangdong, killing 8 people and causing the bridge to collapse 200 meters, which attracted national attention. The collision between ships and bridges has caused serious economic losses, endangered people's lives and brought great negative social impact. Especially this year, the situation of ships colliding with bridges in Guangdong's jurisdiction is grim. At about 9: 00 this year1October 8/KLOC-0, Huifengnian 298, which was full of sand and gravel, collided with Li Hongqi Bridge in Zhongshan City, Guangdong Province, causing the pier to break and the deck to sink by 80cm. At 9: 55 on April/KLOC-0 this year, the Wuhu-registered bulk carrier "Xinchenguang 20" from Foshan to Hainan strayed into the fourth-class channel from the first-class channel at the bend, and the navigation clearance limit of the bridge was not found, and no effective measures were taken. The top of the wheel collided with the midspan of Lianxi Bridge, with the beam end offset of about 1.6 m, and the lower part was 1 1. Bridges in the Pearl River Delta have many risks and hidden dangers. "When we find the problem, we must actively look for the reason, so as to suit the remedy to the case. Guangdong Maritime Safety Administration summed up the experience and lessons of ship collision accidents in recent years, and also found some problems and laws. " Wu Jiansheng, director of navigation management department of Guangdong Maritime Safety Administration, told reporters that at present, there are many bridges in navigable waters under the jurisdiction of Guangdong Maritime Safety Administration, and the low construction standard of old bridges is one of the most critical reasons for the collision between ships and bridges. At present, most of the bridges under the jurisdiction of Guangdong are concentrated in the Pearl River Delta water network area, including Guangzhou 152, Foshan 148, Dongguan 126 and Zhongshan 98. A considerable number of bridges have been built for a long time, with low navigation grade and lack of anti-collision facilities. At present, the navigation grade of some waterways has been improved, but the navigation grade of the old bridge has not been improved accordingly. For example, he said, 1997, the Chuancha Bridge of Guangzhou-Shenzhen Expressway, which was completed and opened to traffic, is located in the middle section of the inverted seawater passage, with an average daily cross-section traffic volume of more than 654.38+10,000 vehicles, which is the economic artery of the Pearl River Delta. However, due to the navigation clearance height of 6.49m, it is the shortest bridge in the waterway. In addition, there are frequent ships coming and going in the waterway, and the average daily ship flow exceeds 600 times. Under special hydrometeorological conditions, ships are very easy to collide with bridges. On April 24th, 2065438, around 1 1: 25, "Yu Shun 7" collided with the navigation hole (upper beam) between the F3-F4 piers of Chuancha Bridge. At about 9: 30 on April 6, 2065438, "Sui Dongfang 326" sailed from Zhonglang, Dongguan to Lianhua Mountain, Guangzhou. When passing through Chuancha Bridge, the gantry of the bow conveyor belt touched the junction of the cross beam (5#) horseshoe and the T-shaped end beam outside the F3-F4 navigation hole upstream of Chuancha Bridge. A series of accidents also made the local maritime administrative department-Mayong Maritime Department of Dongguan Maritime Bureau feel very embarrassed. To this end, they visited and interviewed the owner of the bridge, Guangshenzhu Expressway Co., Ltd. On the basis of publicizing relevant laws, regulations and industry standards and explaining case studies, they proposed to increase safety investment and speed up the construction of the limited viaduct of Chuancha Bridge, and finally successfully promoted the transformation of Guangzhou-Shenzhen-Zhuhai Expressway Co., Ltd. from passive "I want to build" to active "I want to build" .2065438+September 2006, Successfully promoted the owners of Chuancha Bridge to build "three lines of defense" of electronic detection line (laser anti-collision early warning system), electronic alarm line (electronic monitoring alarm system) and anti-collision physical line (overhead above water), in which Chuancha Bridge started construction in 2065 438+ 10, with a total cost of more than 30 million. Estimate the "three lines of defense" of Chuancha Bridge. Similar to the reverse seaway, some bridges in Shunde Waterway in Foshan have different construction years and specifications, some are high and some are short. The most special thing is that the bridges at the front and rear entrances of the waterway are very short, while the other bridges in the middle of the waterway are very high. The short bridge blocks the boat out, causing a bottleneck, so no matter how high the bridge is built, there is no place for heroes. The driver's lack of safety awareness is one of the key reasons for the high-risk situation in bridge waters. It is understood that after the ship collision accident of Jiujiang Bridge in Foshan, Guangdong Province in 2007, the shipping enterprises under the jurisdiction of Guangdong Province were greatly touched and the awareness of industry prevention was improved. However, with the passage of time, the industry's awareness of prevention has gradually weakened. A considerable number of shipping companies do not pay attention to the risk of ship collision with bridges, and there is no corresponding management link. The crew's awareness of prevention is weak and their handling skills are lacking. The outstanding performance is that when the ship is sailing, the driver does not have a good grasp of the scale of the bridge to be crossed and the scale of the ship. He drives the ship through the bridge waters with experience and even a try mentality, and fails to strengthen the lookout, drive carefully and use a safe speed before crossing the bridge waters. Wu Jiansheng introduced that recently, Guangdong Maritime Safety Administration is strengthening the ship reporting system. /kloc-ships over 0/000 tons and ships from other provinces visiting the Pearl River Delta region for the first time shall submit sailing plans to the Guangdong Maritime Department every time. The navigation plan must include information such as the specific location of the port of departure and the dock at the port of arrival, which bridges, waterways and routes passed on the way. On the one hand, a ship can evaluate whether it can pass before crossing the bridge by chart. On the other hand, the maritime department can also grasp the relevant information of ships crossing the bridge to facilitate supervision and service. "In recent years, with the development of economy, the new situation of large inland river ships and sea-going ships entering the river has also increased the risk of ships hitting the bridge." Because the crew of seagoing ships are not familiar with the navigation environment of inland rivers, the probability of foreign seagoing ships entering the river (inland river) is greater than that of inland river ships hitting the bridge. "Wu Jiansheng said that the tonnage of ships entering Jianghai is generally large, and the tonnage of ships entering Jianghai under the jurisdiction of Foshan is up to more than 8,000 tons. With the increase of ship tonnage, the scale and clearance height of ships exceed the navigation capacity of existing waterways and bridges, and the maneuverability of ships is also limited. Therefore, the probability of a ship hitting a bridge increases, and the consequences of a ship hitting a bridge are also aggravated. Navigation environment is complex and influential.