Chapter 743: Flood Prevention Begins

Style: Science Author: four barrel cannonWords: 2569Update Time: 24/01/12 09:40:21
When a large number of cooperative representatives from Loess Province visited Western Xinjiang, the time gradually came to the end of May, and the abnormal weather in the mainland attracted the attention of many people.

“It has basically been confirmed that blocking high pressure situations have occurred on the western side of the Ural Mountains, Lake Baikal, and the Sea of ​​Okhotsk in Asia’s middle and high latitudes many times.

Most areas in the north have more rain, and there are even heavy rains in some areas. Although the weather in the south seems to be normal, according to the weather cloud map, a large amount of cold air from Siberia is moving southward.

It is expected that persistent rainy cold air conditions will develop in the Yangtze River Basin after June 10th. "

Although the abnormal weather has attracted the attention of a group of big guys in the past six months and they were mentally prepared, but now that the stone hammer is really confirmed, everyone is still feeling depressed.

Fortunately, preparations were made in all aspects more than half a year in advance, and everyone has full confidence in this flood.

The Three Gorges flood diversion and storage area has been expedited within the past six months. New World Group and China Construction Group mobilized a large number of manpower, engineering equipment, and materials regardless of cost. Multiple sections began to be constructed simultaneously. Finally, the main body and flood discharge sections were completed a few days ago. .

At this time, everyone no longer thinks about power generation, but first completes the spillway dam.

Thanks to the fact that the construction level of large-scale projects in this world is much higher than that of the same period in Chen Yi's previous life, it is equivalent to the construction level of 10 years to build the Three Gorges Dam, and there is also the Zhijiu Kai, an artifact responsible for transporting large-scale machinery and equipment and materials. , plus the progress of the dam is much higher than the same period in the previous life.

Therefore, multiple sections of simultaneous construction were carried out within half a year regardless of the cost, and it was finally completed a dozen days before the flood season. In addition, the bamboo grass that had been growing along the Yangtze River for half a year temporarily fixed a large amount of soil that was about to be lost, as well as various levees. reinforcement and heightening.

Various cities and rural suburbs have laid flood control boards on the ground to form "reservoirs" one after another. There are also many artificial river beds and underground cavities opened in low-lying areas to divert water. After many preparations, everyone was relieved. tone.

Otherwise, the Three Gorges alone cannot solve all the problems. The Three Gorges is only responsible for intercepting the water level in the upper reaches of the Yangtze River for flood control and peak reduction. It can ensure that the floods in the upper reaches of the Yangtze River will not rapidly impact the downstream in a short period of time, reducing the water flow from an explosive state. into a smooth transition state.

However, due to the large number of lakes and rivers in the low-lying areas of the middle and lower reaches of the Yangtze River, floods will still occur when rainfall surges. However, they are local disasters caused by heavy rainfall in low-lying areas. This situation exists regardless of whether there is the Three Gorges.

After the Three Gorges blocked the bulk of the floods in the upper reaches of the Yangtze River, local flood control in the middle and lower reaches will be much easier, and there will no longer be exaggerated scenes of tens of thousands of square kilometers being inundated.

This year's rainfall is obviously very heavy, so some low-lying plain areas in the middle and lower reaches of the Yangtze River will definitely be affected.

As time goes by, all Blue Stars are paying attention to the situation along the Yangtze River in China. Even those big Vs who want to stir up the topic of "young people along the coast are not growing food" have realized that the situation is wrong and have They all stopped and quickly deleted a series of their own updates. No one dared to say a word at this time.

Now it is not a question of whether to grow food or not, but a big one is clearly coming to the middle and lower reaches of the Yangtze River after the abnormal weather for more than ten days this year. In such a tense atmosphere, who dares to talk nonsense without fear of being criticized by more than 300 million people in the middle and lower reaches? die?

Then all the melon-eating people in Blue Star saw a scene that made their brains shut down.

In early June, a large number of Pla officers and soldiers took sea turtles directly along the waterway and stationed themselves at various flood control embankments along the coast. Banners were raised one after another that read "People are on the embankments, people perish on embankments." This heralded their determination. After more than half a year, regardless of the situation, With the reinforcement and heightening of the construction cost, Chen Yi believes that all the dams will be impregnable this time.

At the same time, a large number of sea turtles from the nine western provinces carried a 68-cubic-meter container in their stomachs and went down the river. When they passed the Three Gorges, they came ashore, went directly around the dam and re-entered the water to the middle and lower reaches of the Yangtze River, and began their activities. Persistent scooping work.

The four thousand Z-9s directly changed the route of daily water delivery to Western Xinjiang. Three thousand of them hoisted a 300-cubic-meter container above the Three Gorges Spill Dam to "scoop water" and transport the box to the nearest After the mountain city continues to scoop up water, the containers will be delivered to the water-scarce provinces in the west as soon as possible, thus forming a new water delivery route.

The remaining one thousand are sent to the middle and lower reaches to transport supplies or to scoop water in low-lying plains.

Every household of more than 200 million residents along the river has a life jacket, life buoy, and passive exoskeleton, commonly known as a "swimming suit." In the internal warehouses of cities, counties, towns, townships, and villages, batches of lifeboats are already waiting.

While everyone was waiting with bated breath, the climate in the mainland suddenly began to change dramatically, and everyone realized: It's finally here.

There are large cloud systems in the north and south, and the rain is falling like the plum rain season in the south of the Yangtze River. There are even heavy rains in some areas of Ganning and Ningxia in the west. The Songhua River and the Nenjiang River in the northeast are beginning to become restless.

At this time, people in other areas who originally had some doubts no longer doubted whether the meteorological data was accurate.

Now everyone has seen this abnormal rainfall and realized that this year is not stable, and everyone no longer doubts whether the preventive measures taken for more than half a year regardless of the cost are of any use.

After mid-June, the continuous heavy rains in the middle and lower reaches of the Yangtze River directly hit everyone's hearts. Many people had never seen such heavy rains lasting for more than ten days, and the dark clouds in the sky did not care about the ground. According to residents, the heavy rains continued until early July.

Regarding the amount of rainfall this month, many residents actually know that if it had not been for the Three Gorges, and if there had not been large-scale construction and grass planting regardless of the cost in the past six months, their houses would have been overwhelmed by the water now, so in order to protect In their own homes, more people no longer take any chances and join the flood prevention action.

The first phase of flood control operations has begun.

Rumble——

The concrete gravity dam with a total axis length of 2,309 meters, a height of 185 meters, a top width of 15 meters, and a bottom width of 126 meters is like a copper wall and an iron wall that withstands the huge impact from the upstream.

Although the water level on the other side of the Three Gorges interception surface was suppressed by more than 3,000 straight lines and many water pipelines, it was still rising steadily. It finally reached the discharge level of 145 meters, and several deep openings on the flood discharge dam were opened. , the powerful water flow is discharged according to the upward jet trajectory designed for it.

After being buffered by the Three Gorges, the middle and lower reaches have also gained a lot of buffer time. They can temporarily not worry about the astronomical amount of water in the upper reaches suddenly being transferred to the lower reaches. Now they only need to deal with the rivers and lakes caused by local heavy rainfall. At this time, everyone has been fully prepared for the threat of rising water levels.

On the vast Jianghuai Plain, from a plane perspective, you will see plastic walls one after another surrounding the ground like fences. A large amount of plastic has been accumulated in the small squares surrounded by flood control boards. Rainwater, but it is really a drop in the bucket for the "reservoir" designed by Chen Yi and others with a crazy height of more than 100 meters. There are countless such reservoirs along the middle and lower reaches of the Yangtze River.

Moreover, groups of Zhijiu Gai were flying in the sky, hanging containers that looked equally crazy and submerging them into the pool to "scoop water".

At the same time, dry riverbeds in many local areas that were obviously dug manually are also undertaking water storage and diversion work.

For a time, it suppressed the rising speed of the river water level, but the heavy rain in the sky never stopped. The water level of the river was still rising slowly but firmly. In some areas, the water level has reached the warning line. Many artificial river beds have performed well. It was very strong, and the water level was not even one-third of its height.

This means that it is no longer enough to rely solely on water scooping by sea turtles and Zhijiugai, interception by the Three Gorges, and the reservoir formed by splicing flood control boards, so the flood control operation has entered the second stage.

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