On the important role of construction machinery maintenance in earthquake relief from Wenchuan earthquake
Cao Zhong, general manager of Luoyang Juke Special Construction Machinery Co., Ltd.
12 in may, an earthquake of magnitude 8.0 occurred in Wenchuan county, Sichuan province, with a severely affected area of 654.38+10,000 square kilometers, resulting in 69 197 people killed and 19209 people missing. The disaster is serious and urgent! Rescue teams with PLA, armed police soldiers and fire officers and soldiers as the backbone went to the front line of earthquake relief, followed by volunteer teams spontaneously organized by the construction machinery industry all over the country, with large-scale construction machinery urgently needed in the disaster area.
As a construction machinery maintenance enterprise, Luoyang Juke Special Construction Machinery Co., Ltd. quickly organized a team of construction machinery maintenance volunteers to rush to the disaster area. In the process of voluntary maintenance in the disaster area, the team members carried forward the spirit of not being afraid of hardship and fighting continuously, and traveled all over Dujiangyan, Shifang, Pengzhou, Mianzhu, Anxian, Beichuan, Chongzhou and other severely affected counties and cities and post-disaster reconstruction sites, with a journey of more than 4,000 kilometers; * * * Repaired excavators, cranes, loaders and other construction machinery for 46 times, with imported construction machinery accounting for 60% and domestic construction machinery accounting for 40%, which effectively guaranteed the normal work of rescue teams and was warmly welcomed and sincerely praised by rescue officers and soldiers and local people. This kind of voluntary maintenance action has both the joy of success and the regret of failure, and it also leaves us with some enlightenment and thinking.
1. Experience in earthquake relief
In the face of disaster, our only thought at that time was, "At this moment, we can't be absent!" "We should give full play to our expertise and make contributions to earthquake relief."
On May 16, with the encouragement and support of the Construction Machinery Maintenance Branch of China Construction Machinery Industry Association, an application was submitted to the Henan Provincial Disaster Relief Leading Group. On June 6th, the application was approved. We immediately organized seven technicians and two construction machinery maintenance vehicles to rush to the Sichuan earthquake-stricken area overnight with prepared fuel, maintenance tools, accessories and enough water and food for three days.
On the morning of June 7, the maintenance volunteer team arrived in Dujiangyan, and the earthquake relief headquarters issued a notice to all rescue teams involved in earthquake relief. On the same day, we successfully repaired a modern 60 excavator of Hebei Xingtai Rescue Team in Qingchengshan.
In the evening, we received a notice from the earthquake relief headquarters of Yingxiu Town, the hardest hit area. On the Panshan Highway leading to Longmen Mountain in Pengzhou City, a Volvo excavator, which is dealing with landslides and repairing sidewalks, was smashed by stones falling from the mountain and lay across the sidewalk to be repaired. For several hours, dozens of vehicles carrying relief materials and the transfer roads of more than 10,000 affected people have been blocked. Aftershocks continue, landslides are accompanied by light rain, and excavators and dozens of vehicles are in danger of being buried or pushed down 100 meters deep at any time. The situation is very critical!
Knowing this, we took the mountain road regardless of the danger, and it took us three hours to reach our destination. Due to the tight time, the excavator has been repaired and the broken hydraulic pump has been restored, but the excavator has never been able to operate normally. No abnormality was found in the inspection of the volunteer team members. An hour passed, the players' clothes were soaked, and the two flashlights also gave off yellow light. At this time, the earth trembled again, and stones kept falling on the mountain, making the excavator "jingle". We quickly hid under the counterweight of the excavator and continued to nervously check the circuit and hydraulic diagram. In the dark, the trapped people were so anxious that they rushed to watch and kept asking, "Is it fixed?" "What's the matter?" After many times of careful inspection and investigation, it was finally found that the pilot oil pipeline was blocked. After disassembling the pilot oil pipe, it was found that the oil supply was insufficient. It is normal after replacing the pilot oil pipe again. With the roar of the engine, everyone cheered! At this time, the exhausted and hungry players were relieved and collapsed in the car. After a short rest, we continued to rush to another hardest hit area in the dark.
On June 9th, we arrived at Mianzhu Dongfang Steam Turbine Factory. This enterprise directly under the central government, known as one of the "three giants of equipment industry" in China, was devastated in the earthquake, and 99% of the buildings collapsed in ruins. The factory is built on the hill. After the earthquake, the mountain has moved several meters to the whole factory area, and a large area of landslide may occur at any time. The competent department decided to move all the factories to Deyang city. Entering the factory, we saw a 1 10 ton large Yangtze River crane standing in the middle of the main road. Several people stood in front of the crane at the scene and were busy anxiously. It turns out that the crane has been shut down for a whole day due to failure, and all the work of hoisting large precision machine tools has stopped. The landslide that may happen again at any time makes everyone very anxious! After listening to the description of the fault phenomenon, Jiang, a member of the volunteer team, volunteered to drill under the car disc from the 30 cm wide gap between the wheels for repair. It was noon, the surface temperature was very high, and the operating space was very narrow. The foreman Jiang was covered in lubricating oil and his clothes were soaked with sweat, but with skillful technology, the damaged parts were repaired and reassembled. 1 hour later, the crane finally resumed use! Emergency transportation of large precision machine tools has been resumed.
On June 1 1, the Henan Earthquake Relief Headquarters informed us that a ZL30 loader at the resettlement transition house site in Sangzao Town, Anxian County, which was aided by Luoyang City, was shut down for two days due to engine failure and needed urgent repair! When we arrived at the construction site, the rescuers were very excited to see us and said, reinforcements have arrived! According to them, due to the hot and rainy weather, more than 3,000 victims gathered around urgently need to move into prefabricated houses, and the newly purchased loaders broke down at this juncture. The manufacturer has been informed, but the manufacturer said it would take three days to arrive. After inspection and analysis, two volunteer team members judged that there was something wrong with the ignition time. So the ignition time was readjusted, the nut was tightened, and the engine roared happily after installation and debugging. At this time, it was already ten o'clock in the evening, eating the hot noodles brought by the rescue team master, and the team members smiled with relief. During this maintenance, Luoyang TV Station filmed the whole maintenance process and made a news report. Commanders of the earthquake relief headquarters in Henan Province and Luoyang City met with members of the volunteer team respectively and gave us high recognition and appreciation.
From the moment we entered the disaster area, we kept repairing and robbing every day, and the rescue phone kept ringing, which has become the normal work of our maintenance volunteer team. Members of the volunteer team rush around the rugged mountain road every day, often working until the evening 12, and sometimes working until three or four in the morning. Only in the dead of night can they make do with taking a rest in the maintenance service car, then pack their bags at dawn the next day and continue to go to the next hardest hit area.
During the emergency repair of construction machinery in the disaster area, I went to the site several times to provide maintenance services for the construction machinery of an armored regiment and the Second Artillery Engineering and Technology Corps in jinan military area command. After hearing the news, political commissar Wang personally visited the volunteers at Mianzhu Second Bridge and took a group photo. The reporters embedded in the army gave us a special interview, and we also forged a profound friendship with the troops.
2. Enlightenment of mechanical emergency repair for earthquake relief.
2. 1 Most tasks of earthquake relief are accomplished by mechanized operations. Without the input and use of construction machinery, it is difficult to carry out earthquake relief.
Construction machinery is the life pioneer of earthquake relief. Because the epicentre is a mountain canyon, the terrain and roads are mostly winding mountain roads, and aftershocks are frequent, which leads to landslides and mudslides, and roads and bridges are constantly buried and destroyed. In order to get through these roads called "life passages", rescue teams and army officers and men stationed troops on the beach and launched a cruel tug-of-war with aftershocks: they were buried after being opened, and then they were opened again, and so on. It can be said that without a large number of construction machinery, there would be no such "life channel".
Construction machinery is a lifeline for earthquake relief. According to the information provided by Sichuan Earthquake Relief Headquarters, about 6,000 sets of construction machinery were provided by rescue enterprises entering the disaster area, and about 10000 sets were brought by troops, armed police and fire officers and soldiers, totaling more than * * *16,000 sets. Can be said to be all kinds of construction machinery, such as excavators, cranes, loaders, bulldozers, dump trucks and so on. , all over the disaster area. It is precisely because of these construction machinery that the rescue speed has been greatly improved, which has ignited the fire of hope for more trapped people and rescued groups of survivors. It can be said that in this earthquake relief, construction machinery has really become a lifeline.
Construction machinery is the guardian of people's lives and property in earthquake relief. During the danger removal of Tangjiashan dammed lake, 84 construction machines were built around the clock, which opened the flood discharge channel in time and ensured the life and property safety of hundreds of thousands of people downstream. Without these construction machinery, it is inconceivable to ensure the safety of Tangjiashan dammed lake only by armed police soldiers and rescue teams.
2.2 Professional maintenance is a powerful guarantee for efficient operation of construction machinery and saving lives.
Li Shunqing, a farmer from Yanshi, Luoyang, who was once reported by CCTV and praised as "the best rescue team for migrant workers in history" on the Internet, set out from Guizhou with several excavators, loaders and 24 people, with a journey of 1000 kilometers, and went to the disaster area to support earthquake relief. From Dujiangyan to Shifang, he rescued countless survivors and made great contributions to the rescue work in the disaster area. However, due to the lack of professional maintenance, mechanical failure and lack of accessories, I was forced to leave the earthquake relief site after a few days of work stoppage.
During the rescue of Tangjiashan dammed lake, MIG -26 helicopter hoisted 84 construction machinery for flood fighting and disaster relief. Among them, 5 bulldozers and 6 dump trucks failed to be repaired in time and could not be moved to a safe place, which was washed away by the flood.
In addition, from our own experience, we deeply feel that if we hadn't repaired it in time, a large number of precision and expensive machine tools in Dongfang Steam Turbine Factory would have been safely transferred, and the "life passage" from Pengzhou to Longmenshan would have been unimpeded, which was impossible at that time.
2.3 On-site repair is the main form of construction machinery maintenance.
If the construction machinery that broke down at the earthquake relief site is repaired one hour earlier and the "life passage" is unblocked one hour earlier, a lot of lives and property can be saved, which is the victory of earthquake relief. In this case, it is unthinkable to send the faulty construction machinery to a base or factory for repair, and the only way is to repair it on the spot. Therefore, it is not difficult for us to think that even for general construction projects, there are problems of time limit for a project and continuity of processes before and after, and once it is stopped due to failure, it will bring huge losses; At the same time, the construction sites of large-scale projects are mostly far away from the central cities, and the transportation is inconvenient; It is obviously uneconomical and unrealistic to send the faulty machinery to the factory for maintenance, and it will bring greater losses; On-site maintenance is the main way, if not the only way. Therefore, strengthening and improving the ability of rapid response and on-site emergency repair will surely become the core competitiveness of construction machinery repair shops.
2.4 The standardization and improvement of the construction machinery maintenance market need our joint efforts.
In this earthquake relief, we have encountered and seen many irregularities in the construction machinery maintenance market:
There are too few qualified maintenance personnel. After the mechanical failure, we invite "backpackers" in the society, and often several batches come, and the failure remains. It's a waste of time to repeat these.
There are too few qualified operators. Lack of inspection and maintenance of construction machinery leads to abnormal wear and tear of machinery; Unfamiliar with machinery and illegal operation cause unnecessary failures. After the piston rod of the oil cylinder is damaged or bent, it will continue to be used without stopping, handling or repairing, resulting in greater damage.
There are too few qualified assemblers. The parts were not assembled, and the new machine broke down after dozens of hours.
After-sales service personnel are too slow. After mechanical failure, service personnel can't be in place in time.
Poor maintenance information. Lack of information about spare parts suppliers, repair shops and agents, unable to get in touch in time.
All the above shortcomings need to be standardized and improved. It is understood that China Construction Machinery Industry Association is organizing the qualification certification of construction machinery maintenance enterprises and the examination and training of construction machinery maintenance workers, which is very necessary and timely.
We are working hard.
In order to adapt to the characteristics of the construction environment of construction machinery and the needs of construction machinery maintenance enterprises, taking into account the special needs in the disaster period, our company has formulated a plan to improve the coping ability of enterprises according to the personal experience and four inspirations obtained from the practice of earthquake relief, and has begun to implement it.
3. 1 Set up a site emergency repair team for construction machinery.
Organize technical backbones to form a repair team, which is specialized in dealing with the emergency repair at the scene, and can also undertake the repair task at the construction site at ordinary times.
3.2 Upgrade and improve the original construction machinery maintenance service vehicle.
After coming back from the earthquake relief site, we re-evaluated the importance and necessity of the maintenance service vehicle, reformed the maintenance service vehicle, and added the technology and equipment for on-site emergency repair, so that we can arrive at the site in a shorter time after accepting the on-site emergency maintenance or repair task, and complete the maintenance task more conveniently, quickly and better.
3.3 Strive to improve the ability of on-site rapid diagnosis
In order to improve the ability of on-site rapid diagnosis, the company is developing a virtual diagnosis instrument for construction machinery in cooperation with the Institute of Machinery of Shijiazhuang Railway Institute.
3.4 Strive to improve the ability of on-site quick repair.
In order to improve the technical ability of maintenance personnel, we actively contacted the troops stationed in Romania to carry out technical exchanges and various forms of training. Send people to the Academy of Armored Forces Engineering to learn on-site repair skills and purchase corresponding professional equipment.
In short, the great role of construction machinery in earthquake relief is unquestionable, and the role of construction machinery maintenance in ensuring the efficient operation and use of machinery is irreplaceable. I hope my feelings and experiences can play a role in attracting jade, and play a greater role in the construction machinery maintenance industry in the process of economic construction and national rejuvenation!
For details, please see the website: