83 hours of clashes
Poyang asked Guigui Daowei Embankment to break 127 meters, 24 hours of uninterrupted blocking work, "People stop the machine without stopping"
On July 12, China Anneng staff was driving an excavator to fill the dyke breach with stones. Beijing News reporter Zhang Shengpo photo
At 23:08 on July 13th, as the last stone was dumped to the break, the bulldozer driven by Zhang Jianwen and the bulldozer that had been waiting on the other side successfully met, and the sound of the car whistle sounded for a long time. Successfully achieved Helong. At this time, 124 hours had passed from the Weidi break, and 83 hours had passed since the first car was poured into the break.
On the evening of July 8, a rupture occurred in the Weigui Daowei Embankment in Poyang Town, Poyang County, Shangrao City, Jiangxi Province, and the rupture reached 127 meters, resulting in the flooding of 6 nearby villages.
After receiving the rescue mission, China Anneng Group quickly mobilized more than 400 rescue personnel and 52 sets of equipment from Nanchang, Jiangxi, Changzhou, Jiangsu, and Xiamen, Fujian to the Poyang County.
Dyke break
"Water flows down like thunder"
The main body of Wengui Daowei Embankment is composed of sand and soil. It is 9.7 kilometers long and the top of the embankment is five meters wide. It has daily flood control and traffic functions. It is not only a barrier separating the Poyang Lake tributary Changjiang from the villages and fields along the line, but also a number of nearby ones. The channel connecting the village to the outside world. Over the years, Wengui Daowei dike has protected the nearby 15,000 acres of good fields and more than 5,500 villagers from the threat of flooding. The 1998 flood did not destroy it.
Until the evening of July 8, it was torn open by Changjiang.
"Unlike the structure of the hexahedral concrete dam built by the Yangtze River embankment according to the once-in-one-year standard, the earth dams of Wengui Daoxu dike were built according to the once-in-a-year standard. The dam itself has poor soil quality and impermeability. Weak, coupled with prolonged immersion, the foundation is soft and easy to break." On July 14, a person in charge of emergency rescue of China Anneng Second Engineering Bureau (hereinafter referred to as "Anneng Second Engineering Bureau") told reporters.
Many villagers in Guihu Village and Dengjia Village said that the collapse of the Weidi Embankment was too sudden. Everyone did not expect that the Guidi Daowei Embankment would have collapsed for decades. Therefore, before the flood came, most of the villagers did not prepare for flood control.
Wang Hui (a pseudonym), a villager in Guihu Village, recalled that a few days before the collapse of the dyke, Poyang Town had been under heavy rain for nearly ten days. The water on the Changjiang River opposite the dyke could rise up to fifty or sixty centimeters a day, but he did not I thought that the dike would break.
Another villager, Huang Zhijian (pseudonym), told reporters that on July 7, Guihu Village had a heavy rain day and night. On the evening of the 8th, before the dike collapsed, he went to the dike to check and found that there was a large pipe When they appeared, they reported the situation to the village cadres.
Huang Guohua (a pseudonym), who had been a village cadre in Guihu Village for more than ten years, also confirmed this to reporters. He remembered that the village cadres had told him that they had blocked the pipe on the polder with quilts and wooden boards.
About an hour after Huang Zhijian discovered the pipe, Wengui Daowei dike was finally torn open, and soon became a huge 127-meter-long wound.
The turbid Changjiang water squeezed across the break of Wengui Daowei dike and ran to the fields and villages.
When the flood struck, Guihu Village was the hardest hit.
Wang Hui recalled that just after seven o'clock in the evening, the flood had poured into the village. "The water came down like thunder, it was very loud and scary."
Seeing the flood approaching the house step by step, Wang Hui hurriedly asked his wife to bring his two sons to the dyke that had not collapsed to avoid danger, and he moved the furniture on the first floor upstairs. However, at this time, Wang Hui's head was already buzzing. For half an hour, he didn't know what he was doing. "I just moved things subconsciously, and I have never seen such a situation."
Three hours later, the water on the first floor had been submerged to Wang Hui's knees. He dared not move anymore and immediately hid to the second floor to avoid danger. Wang Hui said that night, his wife and son and many villagers stood on the embankment overnight.
In addition to Guihu Village, Panyang Town was also flooded with villages such as Dengjia Village, Daocha Village, Guizhong Village, Guiwan Village, and Cao Village. Deng Quanzhong (pseudonym), a villager in Dengjia Village, told reporters that when the dike broke down, there was a villager driving on the embankment. Suddenly, the villager was taken away by the torrent, and fortunately the villager jumped off the car and escaped, nearly two hours apart The villagers found that the villager was hiding in an antenna tower.
Deng Quanzhong recalled that that night, the water in the villagers' homes rose to nearly two meters, and many villagers had no chance to move the expensive home appliances on the first floor, and could only let the flood soak.
On July 12, the reporter saw at the scene that the local villagers' houses were mostly two-story buildings or three-story buildings. After the polder burst, the basement and first floor of most of the houses in the flooded villages have been flooded, and some houses Almost all were swallowed by the flood, leaving only half of the windows and roof above the water. Only a few villagers’ houses along the embankment are temporarily preserved intact due to topography or high ground.
At 23:08 on July 13th, with the last cart of earth and stone thrown into the river channel, Jiangxi Poyang Wengui Daowei dike crest successfully realized Helong. Beijing News reporter Li Yang Lu Zhongsheng photo
Emergency
The engineering vehicle keeps returning to and from the driver to "overtime"
On the evening of July 8, An Neng No. 2 Engineering Bureau received the task of emergency rescue and blocking of Gui Dao Wei dike. Quickly mobilized more than 400 emergency personnel and 52 sets of equipment from Nanchang, Jiangxi, Changzhou, Jiangsu, and Xiamen, Fujian, and rushed to Poyang County.
Anneng No. 2 Engineering Bureau is a central enterprise unit directly managed by the State-owned Assets Supervision and Administration Commission of the State Council. The company was formerly known as the Second Hydropower Corps of the Chinese People's Armed Police Force. It has participated in many major disaster rescues such as the Tangjiashan Barrier Lake, Yushu Earthquake, and Zhouqu Mudslides. task.
An on-the-spot commander of Anneng No. 2 Engineering Bureau said that in fact that night, there were two ruptures in Guidaoweiwei dike, not far from the 127-meter rupture mentioned above, and another one of more than 70-meter rupture.
After research and judgment, the Anneng No. 2 Engineering Bureau decided to first concentrate its efforts to block the 127-meter break at the Guigui Daowei dike. "One is because the dike is the first to settle here, and the other is that the construction conditions here are the most favorable."
It is slightly different from the original blockade plan that the upstream and downstream of the polder will go side by side. Because the upstream road of the flood junction is flooded, the blockade can only be carried out in one direction downstream. The plugging time has virtually doubled.
It is understood that the Anneng No. 2 Engineering Bureau formulated the plugging plan for “protecting the head of the dike head, occupying the embankment with stone ballast, layering and rolling on the water, and filling and sealing the air with clay”. After the head of the dike head from the water to the back of the water surface to fill the head of the embankment to protect the dike head to enhance the stability of the dike head, to prevent further deterioration of the danger, "Shiqiu embankment to occupy" becomes the entire polder The main work of the dike closure operation.
At 12:00 noon on July 10, the first car stone was thrown towards the break.
On July 12, the reporter saw at the Guidi Daowei dike closure site that the road leading to the Weidi has been subject to traffic control, and only engineering vehicles carrying blocked stones are allowed to enter. More than 170 engineering vehicles loaded with stones of different sizes go to and from the stone loading point and block the site.
Engineering vehicle driver Xu Guozheng said that there are seven or eight kilometers from the stone yard to the blockage site, and it takes more than one hour to go back and forth. "The biggest difficulty is that the road is too narrow to meet the car. The road is full of water, so be careful Will fall."
July 13 was the third day that Cao Jie joined the stone transportation team. Daochao Village, where Cao Jie is located, is also one of the flooded villages. He told reporters that when driving through Wengui Daowei dike every day, he could see his village. It was a short distance from Weidi to Daocha village, but because many roads in the village were washed away, he It takes more than 30 kilometers to get home every day.
The driver of the engineering vehicle is divided into a white shift and a late shift. Cao Jie is a late shift. His working hours are from 7 pm to 7 am. But Cao Jie set off from home at five o'clock, and began to transport stones into the venue at half past five. "Can transport one more car and count one car, if all vehicles can transport one more car, it is a terrible amount of traffic." Cao Jie said, he proactively extended the working hours by four hours, he hopes this Help the severance to close together as soon as possible, "Because this is related to my hometown and loved ones."
On the afternoon of July 12, the reporter saw at the plugging site that there were 5-6 vehicle dispatchers directing engineering vehicles to enter the entire plugging operation platform. Since the blockade began, the dispatcher Xiao Li continued to stand for five or six hours a day to command the vehicle. He held a red flag and a green flag in his hand. Waving the red flag stopped the front and rear vehicles, and waving the green flag allowed them to move. .
Xiao Li told reporters that because there are too many construction vehicles, each driver may have no place to take into account during the dumping of the stone and the departure due to fatigue or other objective reasons. The role of the dispatcher is to assist the driver in judging the distance between the vehicles. The most reasonable, how to leave the operating platform most smoothly.
"The fundamental purpose is still to save time. If the blocking time is delayed due to vehicle scheduling problems, it is not worthwhile." Xiao Li said.
After the engineering vehicle dumps the stone to the break, the construction staff will push the stone into the water with a bulldozer until the plugging site is parallel to the working surface before it can continue to move forward. For every meter forward, more than 200 cubic meters of stone need to be filled on average.
Relevant person in charge of Anneng No. 2 Industrial Bureau introduced that after the closure work began, Anneng No. 2 Industrial Bureau implemented a 24-hour uninterrupted operation mode, and rescue workers operated on a 12-hour/shift basis, from 8 a.m. to 8 p.m. One shift, rotation in turn, two shifts a day, to ensure that "people are not stopped."
Transfer
Firefighters use flashlights to search for trapped villagers
Simultaneously with the clashes, the trapped masses were transferred.
At 22:42 on July 8, the Ganzhou Fire Rescue Detachment received an order to reinforce Poyang County. The local quickly assembled 154 commanders, 20 rescue vehicles, 10 assault boats and 12 rubber boats to rush to Poyang overnight.
A person in charge of propaganda from the Ganzhou detachment recalled that at about 1 pm on July 9th, they arrived at the disaster site in Guizhong Village and found that five of the six villager groups in Guizhong Village had been flooded. "The village cadres pointed us to the location of the submerged group, and at a glance, the two- or three-storey buildings could not see the roof."
On the evening of July 9, the entire village of Guihu Village, Panyang Town, was besieged by the floodwaters, which flooded to the first floor of the house. The power supply in the village was cut off, and every household was dark. Firefighters can only hold flashlights, ride in rubber boats, and go from house to house under the leadership of village cadres to search for trapped villagers.
At 6:25 pm on the 7th, the search and rescue team found that a 65-year-old man and a 16-year-old boy were trapped in a residential building submerged by a flood. A firefighter then climbed down the corridor to the corridor He helped the old man and the boy to land on the dinghy slowly on the comrades’ shoulders, and escorted them safely to the shore.
Up to now, tens of thousands of villagers have been safely transferred and properly resettled.
Wuyi Central School in Poyang County is a village settlement. One teaching building and two dormitory buildings were filled with more than 700 villagers affected by the Qiaodao embankment. The government distributed simple wooden bed boards to the villagers. The villagers either laid the bed boards directly on the ground to rest, or placed the bed boards on several spliced desks.
A villager said that the government provides three meals a day for the villagers free of charge. Breakfast includes porridge, buns and eggs, and there will be 2, 3 meat dishes for lunch and dinner.
During the search and rescue process, how to persuade the villagers to leave the houses besieged by the flood is the "most difficult" faced by the rescue team.
"Some people think that the disaster is not serious and they are not willing to go to the resettlement site. We and the village cadres can only take turns to do ideological work for them."
Wang Hui was one of the villagers who did not want to leave home. After the village was flooded, Wang Hui sent his two children and mother to the relatives of the county to live, and he and his wife chose to stay in the village.
Many villagers said that the villagers who continue to live in the village are firstly afraid of not being used to the living conditions of the resettlement site, and secondly, they are afraid that some valuables in the family will be stolen after leaving the house.
However, after flooding the village, the tap water of all flooded villages has been cut off, and the power supply system has also been suspended.
The only power source of Wang Hui’s family is a battery, which can be recharged from the town. Now, in order to save electricity, when he is used to falling asleep at 11 or 12 in the evening, he will turn off the light and put down his phone.
The person in charge of the Panyang Town Power Supply Office told reporters that the power outage was purely for the safety of the villagers. In a flooded village, a ten thousand volt line is less than two meters away from the surface of the water. "There is a safety hazard at such a distance. No one knows what happens if the pole is in the water. If the water is live It’s dangerous at any time."
At present, there are about 5,500 villagers affected by the power outage.
Deng Quanzhong also chose to stay behind. On the afternoon of July 13th, when the reporter saw Deng Quanzhong, he had just fetched water from a neighbor's well. Since tap water has been popularized in rural areas, few farmers still have wells in their homes, but now, in order to survive, he has to survive from the wells.
Deng Quanzhong said that in recent days, the government will also send water trucks to deliver some domestic water to the villagers, but the amount of water is not enough to maintain life, and some villagers still rely mainly on wells for water.
Helong
The actual closing time is about 50 minutes earlier than expected
At 7 pm on July 13th, driver Zhang Jianwen ate a few bites of rice and sat into the cab. That night, he would drive a bulldozer to the 127-meter-long breach of Wengui Daowei dike to complete the dragon.
At about 22 o'clock on the 13th, the crevasse had been shortened to 6 meters. The water flow at the crevasse was significantly accelerated, and it was blocked to a critical juncture. The bulldozer threw a large stone into the crevasse.
A number of on-site commanders and construction personnel of Anneng No. 2 Engineering Bureau told reporters that the 127-meter-long break at Guidao Weiwei dike is expected to be completed at 12 pm on the 13th.
The actual closing time was about 50 minutes earlier than expected. At 23:08 on the 13th, the bulldozer driven by Zhang Jianwen and the bulldozer that had been waiting for the other side successfully met as the last vehicle was dumped to the break. The sound of the car flute sounded for a long time. Helong officially completed.
An on-site technical person in charge said that the completion of Helong does not mean that the blocking work of Wengui Daowei embankment has ended. Next, they will carry out "water layering and rolling, clay dumping and gas sealing" according to the original plan, that is, Continue to backfill the stone and earthwork at the crevasse and compact it with a bulldozer until the working surface is parallel to the height of the original polder. In addition, clay should be used to backfill the water diversion surface to prevent the water flow from continuing to erode the just-sealed crevasse ; Another 70-meter-long break will also be blocked in the next one or two days.
"In short, we should try to restore the dike to its original state, so that it can have the functions of flood control and transportation again." On July 13, Nie Zhongcheng, head of the party and mass work department of the Nanchang Branch of China Anneng Second Engineering Bureau, said After the blockage is completed, the water flow is completely blocked, and the water in the residential area and the farming area will be pumped back to Changjiang according to the water conditions of the Changjiang River.
A staff member told reporters that the next step will also organize anti-filtering clay and heightening and thickening work to ensure the stability of the dike structure and seepage control, and to ensure that the embankment is solid before the new round of rainfall.
Beijing News reporter Zhang Shengpo intern Zhuo Manman