On the third day of fighting the flood, Li Zhan saw Li Fengxiang in the tower early in the morning, and then he knew that the situation was getting worse. Li Fengxiang was the chief engineer of the Military Region Meteorological Center. When Super Mario was ravaging Nangang City, he moved to another scene.
Coming to Longcheng shows that the flood control situation here is becoming more and more serious.
The tower control center has almost become the "Air Force Branch" of the flood control headquarters. In addition to the control personnel, half of the space is used by meteorological personnel. The meteorological scope of concern covers four provinces and two regions.
The weather has been very bad in the past ten hours, and it was difficult to see the road clearly when walking, let alone flying, so Li Zhan had a lot of rest and slept particularly well.
The two main tower commanders Yu Chenglin and Zhang Wei and the meteorological personnel headed by Li Fengxiang gathered around the combat table and studied the weather cloud maps in low voices, analyzing the current water level conditions in the three river basins. In the past twenty hours, the three rivers have
Dam No. 1 has withstood five flood peaks. The original sixth and seventh flood peaks were expected to arrive between 17:00 and 19:00 pm, while new flood peaks are still forming upstream.
There is a landline phone and a satellite phone on the combat table, which are specially used to communicate with the flood control headquarters. At this time, they are like time bombs. Everyone is afraid of touching them and fearing they will sound.
Li Zhan stood silently behind and listened to their discussion.
Zhang Yuan, holding a colored pencil in his hand, put his hands on the topographic map, drew a circle at a certain location in the upper reaches of the Three Rivers, and said, "This is where the flood peak is formed. At an altitude of a thousand meters on the Yunnan-Guizhou Plateau, here all of a sudden
It became more than 100 meters, with a huge drop and a very abundant water supply. Immediately after the flood peak, it rushed eastward with almost no obstacles. The No. 1 Dam and the No. 2 Dam are small dams and old dams, and they can play a great role.
It’s very limited. So the No. 3 dam is the main obstacle to withstand the impact of the flood peak.”
Yu Chenglin said, "Now the water level of No. 3 Dam has alarmed, far exceeding the designed capacity, and two flood outlets have been opened. When the later flood peak arrives, more flood outlets will inevitably be opened, otherwise No. 3
The dam is in danger of breaking."
"That's the problem." Zhang Yuan nodded to Yu Chenglin and said to Li Fengxiang, "Mr. Li, many embankments in the downstream area have reached critical points, and the troops and local people are reinforcing and raising the two sides. No. 3 Dam is no longer
When the flood discharge port is opened, these temporarily reinforced and heightened embankments will not be able to withstand the huge pressure impact."
Only then did Li Zhan realize that Chief Engineer Li Fengxiang was not only a master of meteorology, but also one of the main figures qualified to make suggestions to the flood control headquarters in terms of flood control decisions.
The combat atmosphere is very strong. For the troops, flood fighting and rescue operations are operations.
"We need to find a way." Li Fengxiang said in a deep voice, "In the next forty-eight hours, the precipitation will not slow down significantly. Not only must we take into account the flood peak coming down from the upstream, but we must also take into account the water accumulation and conditions in various areas.
It's more serious than we previously thought."
Everyone looked at each other, helpless.
When nature shows its power, humans will be confused.
"We can only divert the floodwater upstream and kill the new flood peak before reaching the No. 3 Dam. The remaining difficulties must be overcome." Yu Chenglin said solemnly.
Li Fengxiang picked up a pen, drew a circle to enclose the upstream basin, and asked, "The specific plan, where to draw the water, where to discharge it, and what impact it will have."
As soon as he saw the provincial capital city in the circle, Yu Chenglin shut his mouth.
The reason why the discussion plan cannot be liberal is because there is an urban agglomeration centered on the provincial capital city in the upper reaches of the river basin, an urban agglomeration in the mountains, and there are many important industrial enterprises and technology research and development enterprises there. The location of the provincial capital city agglomeration
It was quite embarrassing. Three rivers split it into two and passed through it.
When discharging and diverting water upstream, where should it be discharged and diverted?
Wherever you go, the provincial capital city is bound to be flooded because it is in a valley.
Otherwise, the same method would have been used long ago, and the flood fighting and rescue headquarters would not have waited until now. What's more, the frontline flood fighting and rescue headquarters is in the provincial capital city, and they know the local situation best.
"The Flood Control Headquarters wants us to provide a plan, right? It means using fighter planes for bombing, right?" Li Zhan couldn't help but say.
Everyone followed the voice and looked at Li Zhan who was standing behind. Li Fengxiang waved to Li Zhan to come over.
Li Zhan walked over and said steadily, "I have an immature idea to bomb the location where the flood peak is formed. I have conducted aerial reconnaissance there and have seen aerial photos. The location with the largest drop is actually a river
In the long and narrow valley, where the three rivers flow, there are two mountains blocking the north and south sides, so that the three rivers can only flow eastward. Blasting a hole in one of the mountains can divert the flow at the source."
“The idea is bold!”
Li Fengxiang's eyes lit up and he gave a thumbs up.
"That's right! It is a primeval forest area with no human habitation. We can completely release the bombing and diversion. As long as the flood flows to the north and south sides, the crisis downstream will be relieved!" Zhang Yuan said excitedly.
Similar things have happened before. The Yellow River froze decades ago, causing the water level to rise sharply. In many places, the water level was much higher than that of buildings. Finally, the Air Force dispatched bombers to bomb the frozen locations that could not be broken through other methods to alleviate the problem.
crisis. It is said that the old guy who carried out the mission was the H-6, but he was still a young man back then.
Yu Chenglin continued, "We are unlikely to dispatch bombers. It is best to use precision bombing. In this way, it is necessary to conduct detailed reconnaissance and detection of the terrain of the target area. I am afraid that this cannot be done by aerial photography alone."
.”
Zhang Wei raised his hand and said, "We can coordinate the army troops. Their army aviation can carry scouts for on-site reconnaissance. If conditions permit, they can even carry out blasting."
"I'm afraid it won't work." Zhang Yuan called up the satellite terrain map, flipped it over and said, "Small-yield explosives have no effect at all. Using a large amount of explosives to transport is a problem, and the evacuation of personnel is also a problem. What's more, with the current
Judging from the weather conditions, it is impossible for a helicopter to enter."
Yu Chenglin said, "They can't get in, and our plane can't take off. Time is so tight, and it's definitely not feasible to get there by land maneuver."
The plan once again encountered difficulties.
Li Fengxiang stared at the satellite cloud image, and the atmosphere became very solemn. He raised his head and said to Zhang Yuan, "Has the latest cloud image been released?"
"Let me ask." Zhang Yuan immediately called the National Satellite Meteorological Center. When he got the answer, he said, "Send it over right away."
Li Fengxiang immediately came to the computer terminal and sat in front of the display screen without hesitation, waiting to receive the real-time satellite weather cloud images. The army has not yet established a real-time sharing platform with the National Satellite Meteorological Center, and the only way to communicate with each other is to transfer files through the network.
way to proceed.
The latest satellite cloud image arrived, and Li Fengxiang carefully looked at it frame by frame, sometimes zooming in on the microscopic part, sometimes zooming out to see the overall picture. He frequently compared it with the analysis and prediction reports sent along with it, supplementing it with his own thinking.
Slowly, everyone understood what Chief Engineer Li Fengxiang was doing. He was looking for a time window.