At 9:36 am on July 5th, an upward escalator at the A station of the Beijing Metro Line 4 Zoo Station suddenly failed. The escalator stopped abruptly and reversed quickly in the upward direction, resulting in the death of one passenger and injury to 30 passengers.
At 4:18 pm on July 7th, the escalator of Line 5 of Guangzhou Metro Station on the transfer line 5 suddenly stopped. Fortunately, no casualties were caused.
At about 17:20 on July 7th, the lift of the Hanzhongmen station on the Nanjing Metro Line 2 failed. Four passengers were trapped in the elevator for half an hour.
At about 21:00 on July 10th, an escalator retrograde accident occurred at the Qinghu station of Shenzhen Metro Line 4, causing injuries to many passengers.
In fact, the safety of subway elevators has not started from people today. Similar public lift accidents occurred earlier this year, last year and the previous year. However, unlike in the past, during the elevator accident on the Beijing Metro Line 4, a 13-year-old teenager was killed. As a supporting facility for subway stations, subway elevators have encountered so many problems in a short period of time that it is worth our deep investigation.
The elevator manufacturer can hardly be resigned. After the escalator accident happened on the Metro Line 4, the reporter immediately called the relevant unit to inquire. However, the unanswered phone calls and silenced attitudes of the relevant units caused the affair of the incident to be tightly wrapped up at the initial stage.
Afterwards, it was Beijing Beijing-Hong Kong MTR Co., Ltd., the operator of the Beijing Metro Line 4. In the afternoon of July 5th, at a press conference held overseas, the Beijing Jinggang Metro Company will publicly review the relevant lift equipment.
At 22 o'clock on the same day, Otis Elevator (China) Investment Co., Ltd., the maker of the elevator, also made a statement on its official website. In this statement, the company stated that it will work with the government's investigation team and the Beijing Jinggang Metro Company to conduct accident investigations and try to find out the cause of the accident as soon as possible.
In the next 3 days, the investigation team will hold a press conference every day to announce the latest survey results to the public. However, due to the time lag between the press conferences and the one-day time, various rumors about the escalator incident have occupied an important place in the media layout. Among them, an article that alluded to the existence of design flaws in Otis Elevator has attracted the attention of all parties.
In response to the Otis Elevator’s allegation that the hardness of the bolt was not enough to cause an elevator accident, Li Mingjie, Manager of the Public Affairs Department of Otis Elevator (China) Co., Ltd., said in an interview: “Otis Elevator spare parts, At the same time, there are two cases of manufacturer's self-production and outsourcing. Because it is temporarily impossible to contact the factory, it is not yet possible to determine whether the damaged fixed parts that caused the accident were produced by the manufacturer."
However, this ambiguous response did not scrub the Otis Elevator Company. On the contrary, at the subsequent press conference, Beijing Jinggang Metro officially represented the government's investigation team. The main cause of the accident was identified as the design flaw of Otis brand 513MPE elevator. In addition, in the maintenance and repair of elevators, Otis also has a situation where the work is not in place.
After confirming that Otis Elevator Company has an unshirkable responsibility, the accident of the subway elevator seems to have been overshadowed. However, another sound came from this time. A well-known domestic media "Reference News" quoted foreign reports saying: "The public transportation hub should use heavy-duty elevators, but China's subway companies have to save money to buy light-duty elevators used in shopping malls, and their prices are only 1/3 of the heavy load." Immediately after the news was posted, it sparked public debate.
On the evening of July 7, Han Zhiwei, director of the equipment headquarters of the Beijing Rail Transit Construction Management Company, denied this accusation from the outside world at a press conference. He made it clear that all the escalators purchased and installed by the Beijing Subway are in line with the design rules for the subway and related national standards and belong to the public transportation heavy lift.
Continually questioning the constant response, the result of the incident finally surfaced. It is understood that after Otis Elevator was found to have design flaws, all of the 257 elevators in the Beijing Urban Rail Transit Network were shut down, while the remaining 1331 escalators and ladders of other brands were also under official arrangements. Conducted a security investigation.
The incentive to reduce maintenance and repair costs was confirmed by the investigation team and confirmed that Otis Elevator Company had full responsibility for the accident. However, in such a public safety incident, it is really only the elevator manufacturer's side who is responsible. According to industry insiders, Beijing Jinggang Metro Co., Ltd., which has always claimed that "we are also victims," ​​also bears great responsibility in this accident.
According to the source, more than 80% of domestic subway elevator accidents are related to maintenance and maintenance issues, or because the company's repairs and maintenance are not timely, not on time, or because of improper repairs and maintenance of the company. In fact, according to Beijing's regulations, elevator repair and maintenance work has a fixed cycle. Every 15 days (two weeks), every month, every quarter, every six months and every year must be repaired and maintained on time. It should be said that if such a repair and maintenance system can be strictly implemented, elevator safety should not be a problem. Why then will this tragedy happen again?
The source pointed out that the problem lies in the fact that the Beijing Jinggang Metro Company has excessively lowered the maintenance and maintenance contract fees paid to Otis. He said that under normal circumstances, the maintenance cost of each metro heavy escalator is approximately 8,000 yuan to 10,000 yuan per year, and Beijing Metro Line 4 has more than 100 such large escalators. The annual maintenance and repair costs need 100 yuan. More than ten thousand yuan. However, the annual maintenance cost for each heavy escalator given by the Beijing Jinggang Metro Company is only about RMB 5,000 or 6,000. Because the prices were too low, some companies that contracted for the Beijing Jinggang subway elevator maintenance had chosen to withdraw after several years of cooperation.
After the incident, whether or not he chose to withdraw from the Beijing Metro Line 4 this year because of low repair and maintenance prices was once the person in charge of Beijing Tianju Great Wall Elevator Engineering Co., Ltd., who was the elevator repair and maintenance operator for the Beijing Metro Line 4. The answer seemed very cautious: “Our contract with the MTRC for repairs and maintenance is usually signed on a one-year basis. The contract signed in May last year has expired, and we just did not renew this year.â€
Then, why is Otis Elevator Company willing to accept such an ultra-low repair and maintenance price that other companies are willing to accept? The person analyzed that there are two reasons: one is as the world's largest elevator company. Otis Elevator's production and sales scale is large, so its maintenance costs can be diluted accordingly; the other is that Beijing Beijing-Hong Kong MRT Corporation is an important customer of Otis Elevator Company, so Otis is very much willing to pass Beijing Beijing-Hong Kong MTR Corporation. Continue to expand your business.
In fact, Beijing Jinggang Metro Company's elevator maintenance costs are low and it is an open secret in the industry. Nowadays, the state-run Beijing Metro Lines 5 and 2 are much higher than the Beijing-Hong Kong MRT Corporation in terms of elevator maintenance costs.
In addition to the above-mentioned problems of depressing maintenance and repair costs, the person said that at present, there are still three major problems in the elevator maintenance and repair market: First, some repair and maintenance companies have not obtained qualifications for repairs and maintenance. Next, affiliated with other repair and maintenance companies, elevator repair and maintenance quality is difficult to pass. Second, some repair and maintenance companies do not have a large number of outlets, and it is difficult to quickly respond to elevator problems. Third, some repair and maintenance companies hire undocumented personnel to repair and maintain elevators in order to reduce costs.
It is understood that at present, there are 306 elevator maintenance and repair companies in Beijing, and each unit needs to repair and maintain 400 elevators. In fact, many smaller companies maintain and maintain less than 100 elevators, or even less. Taking into account the issue of safe operation of elevators, from the beginning of this year, the Beijing Bureau of Quality Supervision has been insisting on spot checks of elevator maintenance and maintenance units. At present, spot checks are still in progress. However, unfortunately, elevator safety accidents have already occurred.
Life is more important than Mount Tai. Only by increasing the relevant departments' accountability for the responsibility for production safety accidents, implement a system of responsibility investigation and step-by-step tracing, and ensure that the reasons are not ascertained and left unchecked. Those who are responsible for the accident are not dealt with, and the lessons learned are not absorbed. Let's pass, the tragedy similar to the elevator accident on the Beijing Metro Line 4 can no longer be staged.
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