Yongjin Building 丨 The project of leaders of the Zhejiang Provincial Party Committee started today!

Zhejiang News Client reporter Zhu Cheng Li Rui

Today, a major project of Zhejiang people has been working and unparalleled for many years.

Dongyingxi flood prevention and subsequent western insurance Datang re -reinforcement project is located in the northwest of Hangzhou City and the right bank of Dongyuxi. It is a major project in Zhejiang Province in 2022. This is the largest new construction major water conservancy project in this year. It is estimated that the total investment will reach 5.8 billion yuan, which is a month in advance than the original plan.

Western Insurance Datang has always been the concern of the Zhejiang Provincial Party Committee and Provincial Government. In the rainy season of 2020, Yuan Jiajun, then deputy secretary of the Zhejiang Provincial Party Committee and governor, went to the Western Insurance Datang in Yuhang District, Hangzhou to inspect the flood prevention work. On February 22 this year, Wang Hao, deputy secretary of the Zhejiang Provincial Party Committee and the governor, also inspected the Western Insurance Datang embankment on the spot, and also specially held the on -site office meeting to coordinate and solve the problem of difficult points in the project promotion.

Why does this project let the leaders of the Zhejiang Provincial Party Committee think about it? For Zhejiang, what is the special significance?

1

Water conservancy projects are divided into different types and functions, including irrigation, flood control, power generation, water supply, shipping, etc. The core function of Western Insurance Datang is flood prevention and drainage.

For Zhejiang, especially the Hangzhou Lake Plain, its importance is self -evident.

Open a map of Hangzhou and find Dongying Creek. You will find that in the west of Dongyu Creek, you are mostly hills in the mountains. Walking east will form a vast Hangjia Lake Plain.

This special geographical location has also paid attention to the ancients. This is also the origin of the name of Western Insurance Datang -historical records: "The Western Insurance Datang was old in danger. Pyongyang. "This is also one of the most tense rolling areas among the eight major water systems in Zhejiang.

Dongying Creek originated in the center of Zhejiang -Tianmu Mountains. At the flood season, the heavy rain in the mountains of more than 1,500 square kilometers in the mountains and the rest of the pulse will be remitted into Dongying Creek, which is easy to collapse the dike and become a disaster. What is even more embarrassing is that because the downstream river slope is small and the top of the Taihu flood, once the flood is not smooth, it is easy to form floods.

Therefore, the Western Insurance Datang was built on the right bank of East Creek, began in the flood gate of the South Lake of Yuhang, and finally the gate of Deqing's gate was 44.6 kilometers in length. "When you set it here, you can refuse the floods in the mountains outside the plain and diversion into the lake. It is the only barrier to block the flood of Lixi into Hangzhou City." Ma Xiaoping, director of the Dongyingxi Water Conservancy Engineering Transportation Management Center, told reporters.

It can be imagined that if there is no western insurance pond and the flood is leaked, the entire Hangzhou and Hangzhou Lake areas will suffer huge losses.

Of course, Western Insurance Great Pond is not the invention of modern people. According to the "Water Sutra Note", "Zhejiang East Trail Yuhang's old county south, the north of Xinxian ... Chen Hun moved to Nancheng in the late Han Dynasty, and the county Houxi South Datang stands to prevent water prevention."

This Western Insurance Pond, which was built in the Eastern Han Dynasty, has gone through thousands of years. Since then, it has undergone construction and gradually forms a scale. After the founding of the People's Republic of China, it has repeatedly carried out a large -scale reinforcement. The Western Insurance Great Pond we see now is a class Ⅱ embankment that encounters a flood prevention standard for a hundred years.

2

So why does Western Insurance Great Pond now cost huge investment to continue to strengthen? there are many reasons.

First, the current flood control standards are really not enough.

According to the "National Standard Embankment Engineering Design Specifications of the People's Republic of China, GB50286-98", the number of non-agricultural population in Hangzhou's main urban area has reached 200 years of flood prevention standards.

Hangzhou has always been frequent in water, mostly from the western floods, as well as tide and floods in the south.

In order to resist the tide and floods in the south, the embankment of the gold soup on both sides of the Qiantang River has been built. The embankment standard in the Hangzhou urban section can withstand the floods that have been encountered in 500 years. Flood prevention has been guaranteed. Therefore, more flood control pressure is now from the Daxi Basin in the northwest of Hangzhou.

The Western Insurance Great Pond is an important part of the flood control system of the East Langxi Basin. It is also an important barrier to directly protect the people's safety in the eastern plains of Hangjia Lake and the city of Hangzhou.

△ On October 9, 1997, the Western Insurance Datang Wulongyu section was mixed with stone slopes.

Second, there are still many leakage hazards in the Western Insurance Datang itself.

It was built in the Eastern Han Dynasty and was built in the Song Dynasty. With the change of the dynasty, the Western Insurance Great Pond has been destroyed and repeatedly built after thousands of years. Essence It is conceivable that based on the actual conditions at that time, the embankment materials of the Western Insurance Datang were also diverse, with complex structures and many hidden dangers.

△ Shooting in December 1998, Yuhang Cadres and the masses participated in Western Insurance Datang Water Conservancy Labor

"Since the implementation of the last round of risk removal, the Western Insurance Datang has been operating for nearly 20 years. Now the embankment structure is still thin. The hidden dangers such as leakage and landslides have not been eradicated. Settlement and slope protection and damage, once it is lost, is huge. "The relevant person in charge of the Hangzhou Forestry Water Resources Bureau admitted frankly.

According to the preliminary results of safety appraisal, the current status of Western Insurance Datang mainly has the problem of stability and infiltration, of which about 15 kilometers of embankment section is stable and stable.

Third, the status of the northwestern Hangzhou is the same as before, and the urban safety factor needs to be improved urgently.

With the implementation of important strategic layouts such as Hangzhou Urban Development and City West Science and Technology Corridor, Future Science and Technology City, and Zhijiang Labs, the Shangnan Lake block planning of Dongxuxi Basin as an important science and technology gathering area in the province has been built. The important protection objects such as the river laboratory and the lakeside laboratory are highly gathering. However, the Shangnan Lake block was threatened by the floods of Lixi and Tongshan Creek outside the Shangnanhu block, and the internal waterlogging was not excreted. At this stage, the flood prevention standard of the Shangnan Lake block is in 20 years. The drainage capacity is less than 5 years. Essence

Under various reasons, the importance and urgency of accelerating the reinforcement of the bidding and reinforcement of Western insurance.

According to the water conservancy department, the bidding reinforcement will take measures such as the width of the embankment, the entire line of anti -seepage, and the solid base increase, and the standards of the Western Insurance Datang Hangzhou Section and Zhongqiao Pond have a total of 52.9 kilometers, of which 5.3 kilometers are 5.3 kilometers Zhongqiao Pond will directly protect the river laboratory. In addition, a new Nanhu hub will be built with a pump discharge of 75 cubic meters per second. 5 -seater brakes and other gates will be converted.

3

Water conservancy projects often benefit the current and long -term.

In addition to playing the role of flood control heavy weapons, Dongyingxi flood prevention and subsequent Western insurance Datang re -reinforcement project also shouldered another important mission -pulling effective investment.

In March of this year, the State Council proposed a major decision to "moderate in advance in infrastructure investment", and the construction of major water conservancy projects coincided with the time.

Western Insurance Datang has re -standard reinforcement project, with an investment volume of 5.8 billion yuan, and a single kilometer -kilometer embankment construction investment has reached 100 million yuan. Effective social investment such as special bonds and bank loans of local governments will help enhance regional development stamina, stimulate economic growth, increase employment positions, and increase people's livelihood.

For people from Hangzhou, especially the 6 town streets along the line, the future Western Insurance Datang is not only a reassuring flood prevention barrier, but also a diversified function of landscape, leisure, sports, culture, tourism and other diversified functions. Good place to go.

"Building a water conservancy project and leaving a water conservancy landscape." Zhang Yongjin, the relevant person in charge of the project design unit, introduced that the Western Insurance Datang reinforcement project will make full use of the current status resources of the coast and on the basis of satisfying the basic functions of stagnation floods, in -depth excavation of history The humanistic style of Shangdong Xixi has opened up ecological channels, enhances landscape experience, continues the regional veins, and realizes the comprehensive value of water conservancy projects.

"For example, we will combine the current status of the venue and the surrounding environment to choose a large available space and more concentrated people to set up theme parks or casual green spaces. And the cultural landscape, focus on creating the "Eighteen Scenery of Western Insurance Great Pond". "Zhang Yongjin said.

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