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(Updated review report released before 5/11)
The route between the new Taiwan Railways city and Yongkang was abnormal this morning (10/28). There were delays for both northbound and southbound trains. Taiwan Railways has not yet explained the cause of the abnormality. However, after an investigation by Apple News, the driver found an abnormal report when the train passed. The Taiwan Railways blocked the route and used one-way double-track traffic. After the public works unit went to check, the rail was found to be 19 cm broken. He is currently undergoing emergency treatment. . Transport Minister Lin Jialong previously stated in the Legislative Yuan that the runway was initially set at 10:01 and normal traffic can be resumed. According to statistics, there have been 13 track breaks on Taiwan’s railways in the past five years, plus 14 incidents today. This is the fifth of this year from today.
Taiwan Railways stated that due to the abnormality of the route between Xinshi and Yongkang, from 7:31 am, the south and north trains from Xinshi Station to Yongkang Station have been delayed. The affected stations include Xinshi and Yongkang stations.
● Originally it was thought that the crack in the track was being investigated and the track was 19 cm away
The “Apple” investigation found that there were cracks in the route. After a train passed, the conductor noticed an abnormal sound. Therefore, he was alert and notified the station immediately. Station personnel immediately notified the dispatcher. The dispatcher blocked the Xinshi = Yongkang Dongzheng line. Single-lane round-trip traffic, public works personnel have gone for emergency treatment, after confirmation, the railroad crack is really broken.
It is understood that the emergency reinforcement of the track between Yongkang and Xinshi of Taiwan Railway has been completed, and normal traffic will resume at 10:01. Taiwan Railway will first adopt short rail junctions supplemented with a fishtail plate reinforcement. Emergency measures will be taken first. The long rails will be replaced during the closing period tonight. welding.
Taiwan Railways also made an explanation later. This morning, the driver of shuttle bus 3709 reported at 7:31 am that the Xinshi = Yongkang Dongzheng Line visually detected suspicions of track breaks. To ensure traffic safety, Taiwan Railways immediately blocked Xinshi = Yongkang. Between Dongzheng Line and West Main Line, two-way single lane traffic.
The Public Works Unit dispatched personnel to the site to confirm that the site was termite welded and the broken end of the 19 cm rail was measured. In accordance with standard operating procedure, the short rail joint fishtail plate lock emergency treatment was completed at 10:01. Normal two-way traffic will resume on the entire line and, once the night operating time is over, the route will be blocked for rail replacement operations. The Taiwan Railway Administration has conducted a special investigation and review of this case, and will explain it to the public as soon as possible after confirming the details and clarifying the reasons.
● The performance of legislators approving Taiwan’s railways is worrying
Legislator Lin Junxian criticized the Legislative Yuan Transportation Committee today. I was hoping the Taiwan Railways would explain to the public today and deal with it urgently. The reality of the Taiwan Railways was worrying. All the directors and ministers approached to say that the reform was necessary. The problem is the same.
Lin Jialong said the problem is serious, but the driver discovered it and blocked the scene immediately, and followed emergency procedures to fix it. With regard to runway safety patrols, full runway inspections will also begin in the near future. At 7:32 this morning, I received a notification from the Taiwan Railways to initiate an emergency response. It was initially set at 10:01 am and can resume normal traffic. It is estimated that the short track will be replaced tonight.
Recently, Taiwan railways revealed that the broken track report on May 19 was false, resulting in about half an hour not immediately blocking the route, causing 2 trains to pass at high speed and cracks were found in March. , but after 2 months of track breakage. Just replacing the new rails made Lin Jialong angry. Now that the rails of the Taiwan Railways are again broken, the Ministry of Transportation said that this time it was the driver who discovered that the Taiwan Railways should quickly investigate the inspection records of the track maintenance units and clarify the responsibilities. .
In addition, the Ministry of Transportation also pointed out that after the incident of the 519 road break, a nationwide inventory was conducted. The Taiwan Railways should find out if inspections were implemented in this section at that time and expedite reinforcements for other sections.
It is reported that because there have been multiple track breaks this year, and most of them were notified by the conductor after the train had left, Lin Jialong believed that the Taiwan Railways had already patrolled the track after the rail break on May 19. Has been implemented? And what is the patrol mechanism? Taiwan Railways has been asked to investigate and investigate the case clearly. The case will be incorporated into the new investigation of the May 19 road break incident and will be reviewed together. Taiwan Railways is expected to submit a review report before next Thursday (11/5).
■ Lin Jialong exposes track breaking and welding problems. The Taiwan Railways will immediately reinforce track inspections.
As Lin Jialong mentioned in preparing today’s Legislative Yuan, “Taiwan Railway Yongkang = Xinshi Line Rail Breaking Incident, cracks are estimated to be related to rail welding problems”; the track break is reported to be a thermite welding place, Taiwan Railway 2017 Thermite welding process was performed at this place in 1984, mainly because the welded long rail was 25 meters short rail section and a section rail 50 meters long. Ultrasonic flaw detection was performed at the welding site according to regulations. There were air bubbles in the rails, and at that time fishtail plates were used as reinforcement.
Taiwan Railways also indicated that the rail break was located between Xinshi and Yongkang (350 kilometers and 150 meters). The rail joint was thermite welded on January 11, 2017 and processed on February 8 of the same year. Ultrasonic pathway fault detection found there are 3-6mm bubbles in the steel rail, which is classified as Class B (defects less than 6mm, greater than or equal to 3mm, re-inspected once per year), and the fishtail plates are used as reinforcement. strength.
Taiwan Railways stated that the department reexamined once a year in accordance with regulations. The results of the ultrasonic flaw detection re-examination performed by the location on September 18, 2018, September 30, 2019 and September 11, 2020 have been confirmed as Class B, no deterioration in the welds and the road is in good condition. It’s dense, with no floating pillows or mud spray. According to routine inspection records from the public works section, there are no abnormalities during the weekly inspections by highway crews. The case has been carried out by the Transportation and Security Division of the Taiwan Railway Bureau. Investigate, review and clarify the exact cause, and follow-up will implement thorough improvements to effectively reduce the risk of lane fracture.
Taiwan Railways stressed that the Taiwan Railway Bureau successfully completed the inspection of routes with a radius of curvature of less than 800 meters on August 8 after the successful break of the west main line on the south side of the station el May 19, according to the notice of the National Transportation Safety Committee. The result was no anomaly. The railroad break was in a straight line section. The Taiwan Railway Bureau issued a telegram on the morning of this (10/28) requesting that each work section strengthen route inspections and welding inspections, and strengthen the repair of shattered roads at welding sites. thermal. Work to ensure safe driving.
■ 14 rail breaks in the past 5 years are not higher than foreign countries. “It is impossible to completely avoid rail breaks.”
According to statistics, there have been 13 track breaks on Taiwan’s railways in the past five years. In addition, there are 14 track breaks on the Tainan New City = Yongkang route. This new road break in the city is the fifth this year. Taiwan Railway officials frankly said that it is impossible to completely prevent the long-welded steel rails from breaking. It is available all over the world. Long weld steel rail spot welds are relatively brittle. Therefore, we can only use continuous inspection and inspection, and it will be detected in advance. If there is a strong crash, you will know and notify it immediately, and you will be taken care of immediately. Today, the incident will be addressed first using short rails, and the train will first be restored to normal operation, but this is only an emergency measure, and the long rails will be replaced overnight welding.
Taiwan Railways noted that the rail metal was damaged and cracked. At first, cracks occurred. However, when the train was hit by high-speed trains, the cracks would instantly break. They did not expand slowly. Instead, the rail welds instantly disconnected under impact. The noise is loud and the route will be blocked immediately to ensure the safety of the route.
Furthermore, Taiwan Railways explained that the rails will be inspected for faults, and it is impossible to prevent uninterrupted rails. However, it is necessary to reduce the frequency by inspection and prevention of roads. Early detection is the same as the physical exam. It may not be possible to detect 100% of diseases. Check immediate processing.
Taiwan Railways noted that currently there are walking and construction vehicle inspections every Monday, and from Tuesday to Sunday, the jurisdiction staff will check the train. When the train senses the vibration, it will notify colleagues to go to the front line for inspection. Perform ultrasonic flaw detection to check the welding place, because the welding is not the original steel rail structure, it will be relatively fragile, so every year, ultrasonic flaw detection is used to confirm and track whether there is deterioration.
Regarding 13 track breaks in five years, Taiwan Railway said it has tried to reduce the number of incidents, and it is not particularly high compared to foreign countries. Such inspection frequency should be sufficient, but Taiwan Railways hopes it has the capacity to increase it. Including the purchase of more advanced inspection equipment such as ultrasound, the Taiwan Railways will review how to improve and strengthen. (Li Zihui, Gan Zhiqi / Taipei Report)
