Accidents always happen at any time, and Ye Kai didn't expect that it was almost autumn, and there was another heavy rainstorm.

On the afternoon of September 22, in Pearl City, heavy rain poured down with strong winds, and the day was like dark night.

At two o'clock in the afternoon, the whole city was already shrouded in darkness, and buildings and vehicles turned on their lights. A reporter took a picture of the scene and exclaimed, "It's like working the night shift."

Accompanied by a deafening thunder, torrential rain entered Pearl City from the northern region and moved towards the urban area. The Pearl City Meteorological Observatory issued a heavy rainstorm warning at half past two in the afternoon, and thunderstorm clouds will gradually move towards the urban area, with more than 50 mm of rainfall in some areas, accompanied by thunder and lightning.

In the process of precipitation, most areas of Mingzhu City are dominated by heavy rain, of which some areas in the central urban area and most of the east bank of the Pujiang River have rainstorm-level precipitation, and the maximum precipitation occurs in the central urban area, which is 188 mm, reaching the heavy rainstorm level.

In the TV news sent back by the reporter of "Pearl Daily", it can be seen that in some areas, the water on the ground has exceeded 20 centimeters. The Mingzhu traffic management department urgently reported to the municipal government that due to heavy rainfall, some areas of Mingzhu City were flooded, and some important road sections were basically interrupted due to water on the roads.

At more than 4 o'clock in the afternoon, due to the sudden rainstorm, the water at the entrance of part of the main line of operation of Metro Line 1 in Mingzhu City rose sharply, although the urban construction department urgently dispatched three high-power pumps to drain the water, but the water surface continued to rise and a small amount of rain entered the main line.

In order to prevent rainwater from flooding the contact rails, the subway company quickly took measures to cut off the contact rails in the upper and lower sections of the section, and the trains of Line 1 turned back to the original route, maintained the operation of a small part of the road sections, and informed passengers through announcements, etc.

At 5 o'clock in the afternoon, the roof of the mobile home outside Metro Line 2 in Mingzhu City was blown into the main line of operation by strong winds, causing the contact rail to trip and force a power outage, which could only maintain the operation of a small part of the line.

By 6 p.m., 64 flights were delayed and stranded for more than 1 hour, and a total of 70 flights were cancelled.

The municipal departments took urgent action, and various key state-owned enterprises and departments such as neighborhood offices also mobilized one after another, mobilizing everyone to work together to drain the water on the streets.

The municipal party committee and government also held an emergency meeting to make arrangements for flood drainage.

I tossed until the evening, and it didn't stop.

Ye Kai was also a little embarrassed, he just went to check a piece of land today, but it turned out that the terrain was low-lying there, and he caught up with a heavy rainstorm, so he was trapped over there, hiding in a three-story building that had not yet been built.

The rain was accumulating more and more, and the first floor was completely submerged.

Ye Kai had no choice but to stay in the lonely building, and when the rain was a little lighter, he called Li Er and asked if there was any way to get him out.

Li Er asked the location and said that there was no problem.

Half an hour later, Ye Kai heard the sound of the engine "Tututu".

He looked down, and saw that on the surface of the ocean on the opposite side, an assault boat was riding the wind and waves, driving towards his side, and there were two people sitting on it, both wearing army green raincoats and red life jackets, one of them was Li Er.

"Two less!" Li Er's voice came from the wind and rain.

"I'm here ......" Ye Kai stood on the windowsill and shouted twice, waving his hand to Li Er.

The assault boat drove over, spun around, and stopped sideways on the side of the small building.

Ye Kai got out of the window on the second floor, grabbed the windowsill with his hand, jumped slightly, and stood on the assault boat.

The assault boat shook a few times, and finally stabilized.

"Ershao's body is light, have you practiced before?" When Li Er saw it, he couldn't help but praise two sentences.

Ye Xingxing said, I really haven't practiced yet, but my body is light, young.

"I didn't expect it to rain so heavily and make you have a hard trip, this is ......" Ye Kai looked at the person who was operating the assault boat and asked Li Er.

"This is a comrade in the garrison area." Li Er introduced.

Ye Kai expressed his gratitude to that person, thinking that Li Er was born in the military intelligence system, of course he was familiar with the military, and if he had difficulties, he could solve the problem by directly finding the local garrison, and it was really not a big deal to get an assault boat or something.

In fact, Ye Kai can also solve the problem by making a phone call, but he is too troublesome, if he comes forward to alarm the garrison area, the nature will be different.

However, Ye Kai's journey back was not all smooth sailing.

When I walked halfway, I met someone calling for help, and when I looked over, I realized that there was a pregnant woman who was going to give birth, and she was in a hurry to go to the hospital, but she couldn't find a way to use transportation.

In this case, of course, Ye Kai didn't say a word, just pulled the person up, and then rushed to a nearby hospital.

The hospital was also half soaked in water, fortunately the obstetrics and gynecology department is on the second floor, there is no problem, but the circuit or something has been affected to a certain extent, at this time to test is the hospital's emergency capacity, so to find this area of the hospital is doing well.

After leaving the hospital, I met a child who fell into the water, and after tossing for a while and saving people, the time was not early, and after sending people back, night was almost falling.

Ye Kai thanked the comrades in the garrison area very much, and then went home.

Ye Ziping also just came back, he went to several places to inspect the drainage work in the afternoon, and he was also drenched, but it was much better than Ye Kai.

After talking about the situation encountered today, Ye Kai said, "A heavy rainstorm has exposed all the deficiencies in urban construction. ”

"It's very touching!" Ye Ziping also nodded and sighed.

Pearl City, such a large city, has a huge drainage system, the length of the underground drainage network exceeds thousands of kilometers, at present, the Pearl City urban road drainage is generally 1 to 2 years of occurrence, key areas according to 3 to 5 years of encounter, overpass rainwater pumping station according to 2 to 3 years of design.

Compared with the more commonly heard "once in a decade" or even "once in a hundred years" river flood control standard, this urban road drainage standard may be puzzling.

However, industry insiders said that urban road drainage standards and river flood control standards are not an algorithm.

The "once in 1 to 2 years" theory of urban road drainage refers to the amount of rainfall, while the "once in a few decades" in river flood control refers to the hydrological flow, which are two different criteria.

"According to the information provided by the Municipal Water Bureau, the standards of the urban drainage system in Pearl City are not very high. If the "once in a few years" standard is converted into rainfall, urban drainage facilities will not have particularly serious water accumulation in response to heavy rainfall of 30 mm or 50 mm per hour. However, if the rain falls to the level of 50-70 mm per hour, there may be some short-term water accumulation and stagnant water on the road. Ye Ziping turned around for an afternoon, and also listened to the report of the Water Bureau, and had a deeper understanding of these situations.

In the past, when he was in the capital, he worked in the propaganda system, although he occasionally encountered these situations, but the focus was on public opinion propaganda, really getting in touch with these figures, after coming to Mingzhu City, this is the first time.

"The drainage system of foreign cities is based on the standard of "once in 10 to 15 years" in New York, and "once in 5 to 10 years" standard in Tokyo. In China, such as Beijing and Mingzhu City, generally according to the "once in one to two years" standard, some large cities are still built in accordance with the "once in a year" standard, the drainage system of these cities, the same small horse-drawn cart, drainage standards are seriously lagging behind. Ye Kai remembered some things, so he said to Ye Ziping, "In some developed countries, the prevention of urban waterlogging has long risen to the height of the law. For example, the legal system of the United States to prevent urban waterlogging has detailed provisions on measures to prevent and control urban waterlogging. Germany has the "Urban Waterlogging Insurance Act", which not only reduces the burden and pressure of the government on flood control, but also cultivates citizens' awareness of flood prevention. Japan also has the Sewerage Law, which has strict regulations on the drainage capacity of sewers and various technical indicators. In China, there is almost a blank in the prevention of urban waterlogging. ”

"We are already lagging behind in these areas." Ye Ziping agreed, "But to completely rectify these problems, the investment is definitely not a small amount." Take the current situation of Mingzhu City, if you can't invest 500 million yuan, the transformation of the urban pipe network can only be a surface project. ”

Speaking of which, the construction and renovation of the urban sewer pipe network is too big, even if there is sufficient funds, it will take a long time to complete the transformation, and now the Pearl City, that is, a food finance, there is no extra money at all, how can there be any spare power to transform the urban sewer pipe network?

Although Ye Ziping is also very clear about what kind of excellent environment a modern large city needs, when it comes to the implementation link, it will be very difficult, without sufficient funds to support, all ideas can only be on paper.

What's more, the city government is also shouting every day that there is no money and no money, and Mayor Wu Yuanshan is at a loss when he mentions this, where can he take care of the problem of urban waterlogging now?

And there are also many people who say that urban waterlogging may not occur for a few days a year, rather than investing so much money to dig trenches, it is better to use it in a visible place, at least it is convenient for everyone to use.

"I think Dad, you still have to seize this opportunity and make a big fuss!" Ye Kai said to his father Ye Ziping, "The news needs to report on the scene of this heavy rainstorm, so that everyone realizes that the time to control urban waterlogging has reached the time of urgency. ”

Ye Ziping listened to his son's words, and also nodded, feeling that this matter should indeed be put to good use.

(To be continued)