Chongqing bus crashed into the river for 96 hours: from the sharp turn to the fall of the whole process of only 3 seconds.

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 Chongqing bus crashed into the river for 96 hours: from the sharp turn to the fall of the whole process of only 3 seconds.


After the head of the bus came out of the water, the staff standing on the salvage boat took off their hats and bowed in silence, and all the boats parked in the salvage waters sounded their whistles. The bus body was obviously deformed and all the windows were broken. 23: 41, all the bodies of the Jiangjiang bus are off the water.

The rescue lasted nearly 4 days. Evaluation of the difficulty of the rescue emergency rescue department, the rescue for the Three Gorges Reservoir area has been the most difficult: one is the relative target ships, the bus is too small, it is difficult to accurately positioning; second is the water too deep to work is complicated and time-consuming, dangerous; third is the bottom topography, multiple; fourth is more assemble Resources and multisectoral response require multiple types of rescue teams to cooperate with each other.

On the evening of October 30, the black box (traffic data recorder) in the accident bus has been found. At present, the local public security department is organizing data card protection, repair and data interpretation. Local police visited and investigated the situation of alarm, and checked the video of passengers on and off the route. Fifteen people (including one bus driver) were initially verified.

In this accident, the bus suddenly turned to the river, which took only 3 seconds. The reporters investigation shows that the main design criterion of the bridge is 1997 standard, and there are many other design criteria around 1985.

From October 29 to January 2019, Chongqing Municipal Administration Law Enforcement Team will carry out special actions to supervise and enforce laws and regulations for highlighting illegal and illegal activities in the management and operation of urban bridges and culverts facilities in the main urban areas.

Drivers singing

Life is an out-of-print movie that cant be replayed. No matter how hard you try, you cant go back. Even if you really go back, you will find that everything is totally different. The only thing you can go back is the memory in your heart. On October 28, 2018, Ran Chung, a bus driver who drove a 12-meter-long bus from the Second Yangtze River Bridge in Wanzhou, Chongqing, entered the Yangtze River in handwritten characters in a personal portrait of his K-song APP.

This time, ran Chung was not just unable to go back. He could not go back with him, and there were 14 passengers.

On October 28, 2018, at 5:24 a.m., Ran Chung uploaded a self-sung song Looking Back in the K song APP. This is his second time to sing this song. After uploading the song, Ran Chung dynamically called it Not Singing Well. After this sentence, a close expression of an eye may be followed by a mischievous expression or a cute expression.

His first time to sing this song was 21:44 on October 27. He uploaded his first song Looking Back Again, which was followed by The First Singing.

Ran Yong has uploaded 29 songs since he first sang Applause Rising on April 13, 2018 at 8:17. Most of them were uploaded from 19:00 to 21:00 p.m., only a few were uploaded around 17:00 and 23:00 p.m., and two were uploaded around 13:00 p.m.

Of the 29 songs, only Looking Back uploaded at 5:24 a.m. on October 28, 2018 is online K songs or uploaded at midnight or early morning.

According to the sign of Wanzhou No. 22 bus at the starting point of Wanda Square, the starting time of No. 22 bus is 6:00 in summer and 6:30 in winter.

Three Key Videos on October 29 showed that on October 28, at 10:02:09 a.m., YuF27085, a northbound bus, suddenly turned left at a large angle on the Second Yangtze River Bridge in Wanzhou. After crashing into a red car traveling southward, it broke through two bridge barriers and crashed into the river at 10:02:12.

From the abrupt turn to the falling from the bridge, the whole process is only 3 seconds.

The three key videos about the bus crash show no signs of deceleration, braking, etc. and no previous speculation about the left-right sway of the vehicle caused by a tire burst or a possible driver grabbing the steering wheel.

The first video was taken by the traffic recorder of the bus moving northward. The picture is relatively blurred and the time stamp is not obvious. But it basically reflects the sudden large angle of the bus on Route 22 of Wanzhou Bus Branch of Chongqing Wanzhou Automobile Transportation (Group) Co., Ltd. when it arrives at the bridge deck near the incident point. Turn left, cross the double yellow line in the middle of the bridge, hit the red car heading south, cross the low protective steel fence on the shoulder, and then rush into the upper reaches of Wanzhou Second Yangtze River Bridge at an angle close to 90 degrees.

The second video is clearer. It was taken by the vehicle recorder traveling southward (opposite to the accident bus). The video shows that at 10:02:09, the bus suddenly turned left at a large angle on the Second Yangtze River Bridge in Wanzhou. After hitting the red car traveling southward, it broke through two bridge fences and broke through two bridge fences at 10:02:09. 02: 12 fall into the river. The red car was almost completely destroyed, and the front of the car was swirled nearly 180 degrees to the north.

The two barrier was broken by the bus instantly, and the accident vehicle fell into the Yangtze River 67 meters away from the bridge deck.

New energy bus with the same appearance on the same line of the accident bus, with power battery stack, electric control system and air conditioning as its roof protrusions. Photography course dimension

The accident vehicle in the second video basically coincides with the length and appearance of the same type of bus found by the reporter at the starting station of No. 22 bus on the evening of October 28.

On October 29, a multi-beam sonar was used by the professional salvage boats of the National Aquatic Emergency Rescue Chongqing Long-distance Fleet and other units, and an object about 11 meters long and 3 meters wide was found. After underwater detection and positioning, it is determined that the bus falls into the Yangtze River, which is located in the upper reaches of the Second Bridge of the Yangtze River at about 28 meters, and the water depth is about 71 meters.

In the third video, the rescue teams underwater camera showed that the accident vehicle was 71 meters underwater at that time, and the advertisement posters on the vehicle body were dimly visible in the video.

Missing columns

Reporters found in the survey, Chongqing because of the topography of two mountains and two rivers, decided the citys main urban area and along the Yangtze River, Jialing River districts and counties, in the traffic solution, mostly use the river-crossing bridge. As of August 2017, 17 river-crossing bridges have been built in Chongqing section of the Yangtze River, 4 bridges are under construction and 14 are to be built. 25 river crossing bridges have been built in the main section of the Jialing River in Chongqing. 7 bridges are being built and 11 are to be built.

Of the 42 bridges across the Yangtze River and Jialing River that have been built in the main urban area, they are built year by year, of which the oldest is the Jialing River Bridge in Chongqing, which was built in 1958. The city has just repaired a new Chongqing Jialing River Bridge, with two steel pipe fences arranged up and down on the shoulders. The 1.5-meter-high pedestrian guardrail on both sides of Jialingjiang Bridge in Chongqing is still reinforced concrete column with steel guardrail.

Video and photographs of the accident site of Wanzhou Second Yangtze River Bridge show that the shoulder of the bridge is equipped with steel tube guardrail with a diameter of about 10 cm. The base of the dense low column is square, and four expansion bolts are fastened to the shoulder.

In 2014, Beijing upgraded the anti-collision grade of the citys bridges. According to the road design speed of 80 kilometers per hour, the speed impact generally does not crash into the railings and fall into the bridge. In 2014, the city planned to consolidate 239 bridges throughout the year.

On October 24, 2018, the Hong Kong-Zhuhai-Macao Bridge, which was officially opened to traffic, has been upgraded to a historic height in terms of its anti-collision barrier: the tourist bus crashes into the barrier at a speed of 100 kilometers per hour, which still ensures that the vehicle does not break through the barrier and fall.

On October 23, 2018, the Hong Kong-Zhuhai-Macao Bridge was officially opened. The guardrail of the bridge can withstand the impact of buses at a speed of 100 kilometers per hour. The test video shows that the impact angle should be 20 degrees. Picture source CCTV video screenshots

At the end of 2017, the Ministry of Transportation revised the Code for Design of Highway Traffic Safety Facilities. In the new code, the anti-collision grade of waveform guardrail was adjusted to protection grade, and the anti-collision grades of HB and HA were added on the basis of the original anti-collision grades of C, B, A, SB and SA.

From October 29 to January 2019, Chongqing Municipal Administration Law Enforcement Team will carry out special actions to supervise and enforce laws and regulations for highlighting illegal and illegal activities in the management and operation of urban bridges and culverts facilities in the main urban areas.

The implementation of the system specification includes 11 items. Including whether to draw up the medium-term and long-term plan and annual plan for maintenance and repair of urban bridges in accordance with the regulations, or to implement it without approval; whether to entrust the relevant qualified bridge inspection and evaluation agencies to carry out the inspection and evaluation of bridges in accordance with the relevant provisions of the state; whether to draw up the plan for safety and emergency repair of urban bridges in accordance with the regulations Whether to formulate the safety emergency plan for urban bridges according to the relevant provisions; whether to complete the acceptance of the project in accordance with the relevant provisions of the State and establish a complete file; whether to maintain and repair the urban bridges in accordance with the provisions; whether to carry out at least one safety inspection every five years for super-large river-crossing bridges in accordance with the provisions, and every other bridge At least one safety test in three years.

The special action in Chongqing will focus on seven aspects: unauthorized occupation of urban bridge and culvert facilities; unauthorized construction of buildings on urban bridge and culvert facilities; unauthorized installation of various pipelines and advertising AIDS on urban bridges; unauthorized movement and damage of urban bridge and culvert facilities and surveying standards. Whether there are acts of willingness to engage in river dredging, excavation, piling, underground pipeline jacking, blasting and other operations within the control scope of urban bridge construction; whether there are acts of willingness to engage in business activities within the urban bridge and its safety protection zone; whether there are acts of willingness to engage in business activities within the urban bridge and its safety protection zone; and whether there are acts of willingness to engage in urban bridge and its safety protection zone Dumping of refuse, waste residue and stacking materials.

Life is a out of print movie that cant be played back. The words of bus driver Ran Chung of No. 22 bus crash in Wanzhou Yangtze River Second Bridge have not been replayed, but replayed.

Extended reading

The latest regulations of the Ministry of transport on the grade of highway wave guardrail

The protection energy corresponding to each anti-collision level of waveform guardrail is explained in the new specification. The protection energy of C-level waveform guardrail is 40 kJ, that of B-level waveform guardrail is 70 kJ, that of A-level waveform guardrail is 160kJ, that of SB-level waveform guardrail is 280 kJ, and that of SA-level waveform guardrail is 70 kJ. The protection energy of SS and SSm waveform fence is 520 kJ, HB waveform fence is 640 kJ and HA waveform fence is 760 kJ. According to experience, SS-class waveform guardrail has been able to meet the design requirements of the guardrail in most national highways, but in some highways where the mainstream vehicles are super-large buses (25t), large trucks (40t, 55t) with high centre of gravity, and the overturning or breaking guardrail of those vehicles will lead to serious consequences, HB Grade HA guardrail can play a better protective role. Finally, it should be pointed out that in the new specification, the choice of waveform guardrail is refined for grade 3 and grade 4 highways with speeds less than or equal to 40Km/h. Class C waveform guardrail can be used for normal sections, but in the case of serious consequences, class B and class A waveform guardrail should be considered. This regulation sets up guardrails according to local conditions, greatly reduces the state investment in traffic safety facilities, reduces the burden of state finance, and has a long-term implementation. The source of this article: China business newspaper editor: Li Cong _B11284

The protection energy corresponding to each anti-collision level of waveform guardrail is explained in the new specification. The protection energy of C-level waveform guardrail is 40 kJ, that of B-level waveform guardrail is 70 kJ, that of A-level waveform guardrail is 160kJ, that of SB-level waveform guardrail is 280 kJ, and that of SA-level waveform guardrail is 70 kJ. The protection energy of SS and SSm waveform fence is 520 kJ, HB waveform fence is 640 kJ and HA waveform fence is 760 kJ. According to experience, SS-class waveform guardrail has been able to meet the design requirements of the guardrail in most national highways, but in some highways where the mainstream vehicles are super-large buses (25t), large trucks (40t, 55t) with high centre of gravity, and the overturning or breaking guardrail of those vehicles will lead to serious consequences, HB Grade HA guardrail can play a better protective role.

Finally, it should be pointed out that in the new specification, the choice of waveform guardrail is refined for grade 3 and grade 4 highways with speeds less than or equal to 40Km/h. Class C waveform guardrail can be used for normal sections, but in the case of serious consequences, class B and class A waveform guardrail should be considered. This regulation sets up guardrails according to local conditions, greatly reduces the state investment in traffic safety facilities, reduces the burden of state finance, and has a long-term implementation.