The harnessing of the most popular Huaihe River wa

2022-07-28
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Huaihe River waterway regulation is about to start, with a total investment of 3.034 billion

Huaihe River waterway regulation is about to start, with a total investment of 3.034 billion

China engineering machinery information

Guide: the flood control standard for the West embankment of the canal to the north of Shaobo lock, the East embankment of Yunyan River from Shaobo lock to Shaoxian lock, and the East embankment of gaoshui River to the south of Shaoxian lock is once in 100 years; The flood control standard of liaojiagou West dike, Mangdao river east dike, Jiajiang dike, Beijing Hangzhou Grand Canal East dike and West dike, Gehu River West dike in Guijiang river is once in 50 years. Project

the flood control standard for the West embankment of the canal to the north of Shaobo lock, the East embankment of Yunyan River in the section from Shaobo lock to Shaoxian lock, and the East embankment of gaoshui River to the south of Shaoxian lock is 100 year return period; The flood standard of liaojiagou West dike, Mangdao river east dike, Jiajiang dike, Beijing Hangzhou Grand Canal East dike and West dike, Gehu River West dike in Guijiang river will be once in 50 years with the trend of optimizing energy structure and promoting energy conservation and emission reduction. The project area can resist the M7 earthquake, and the Huaihe River flood for hundreds of years will soon become history. After the national development and Reform Commission approved the project of harnessing the Huaihe River Waterway in November last year, the Ministry of Water Resources launched the preliminary design review of harnessing the Huaihe River waterway last month and is currently in the process of further revision. "According to the progress, the Huaihe River waterway regulation project, which has attracted the attention of the people in Lixia River area, will start at the beginning of this year, with a total investment of 3.034 billion yuan, of which the total investment in Yangzhou section is about 1.8 billion yuan."

"the harnessing of the Huaihe River channel into the river is a water conservancy project that will benefit thousands of people." The relevant person in charge of the municipal water conservancy department said that in a short time, a strong security line will be erected on both sides of the 115km long Huaihe River Waterway in our city, providing a strong guarantee for the safety of 17.26 million mu of cultivated land in Lixia River and the lives and property of millions of people in the polder areas along the lakes and rivers in our city

The flood of the Huaihe River has harmed thousands of people for hundreds of years, which has brought great disasters to the people in the middle and lower reaches of the Huaihe River for hundreds of years. According to historical records, after 1128 A.D., the Yellow River occupied the lower reaches of the Huaihe River into the sea, which hindered the flood of the Huaihe River. Harnessing the Huaihe River became an arduous task for centuries. In 1931, the East dykes of Gaoyou and Jiangdu canals burst one after another, and the floods poured down the Lixia River. The highest water level in Xinghua reached 4.6 meters. The Lixia River was a vast ocean, and the death toll was as high as 77000

after the founding of new China, the state and governments at all levels attached great importance to the governance of the Huaihe River. As the main channel for the Huaihe River to flow into the river, Yangzhou has invested nearly 100 billion yuan over the past 60 years to renovate the watercourses and canals of the Huaihe River under the call of "we must harness the Huaihe River well". It has reinforced and renovated the East and West levees of the canal, opened up new entrances to the river, built large-scale double track ship locks and canal bridges, reconstructed and reinforced dangerous ship locks, demolished the sea return dam, reconstructed the highway on the top of the levee, etc., laying the foundation for the Huai River to enter the river

although great achievements have been made in harnessing the Huaihe River, the Huaihe River flood still exists. The moderate flood occurred in the Huaihe River Basin in 1991, and the largest flood since 1954 occurred in 2003. In 2007, the Huaihe River Basin flood occurred again, and the flood discharge water level of the waterway into the river generally rose. It is understood that the Huaihe River floods in recent years have exposed the hidden dangers of floods: the flood discharge capacity can not meet the design requirements, and the levee standard is insufficient; The buildings along the line are aging and in disrepair, with serious diseases; The waterlogging removal standard of the depression along the line is low, and the problem of waterlogging caused by flood is further exposed. Therefore, it is urgent to further harness the Huaihe River

more than 70% of the Huaihe River's waterway into the river is called "flood corridor" in Yangzhou history, and the pressure of flood control has always been very great. Nearly 2million square kilometers of water from the Yangtze River and Huaihe River Basins flows into the sea in our city. More than 70% of the 6638 square kilometers of the city are under the threat of floods. In addition, the city is still in the transition zone of North-South climate, with uneven temporal and spatial distribution of rainfall. The peak acceleration of drought prone and flood prone areas should be between 125g and 175g. The special geographical location and climatic conditions determine the high probability of floods, floods, droughts, winds, storms, tides and other disasters in our city. Floods, floods and droughts of different degrees occur almost every year

Yangzhou is the main channel of the Huaihe River, accounting for 70% of the total length. The 157km Huaihe River channel into the Yangtze River is 115km long in Yangzhou section, carrying about 80% of the flood in the upper and middle reaches

it is understood that the Three River Sluice of Hongze Lake starts on the channel of the Huaihe River into the Yangtze River, passes through Huai'an and enters Yangzhou at Gaoyou Lake, goes along xinmintan and Shaobo lake, crosses Guijiang rivers below the six sluice gates, divides first and then joins, and joins the Yangtze River at SANJIANGYING. Although it is only a 157 km waterway, it is the last flood control safety barrier for 30million mu of arable land and 20million people's lives and property in the downstream area of Hongze Lake, including 17.26 million mu of arable land in the whole Lixia River area and flood control safety in the polder areas along the lake and river in our city

"the task of harnessing the Huaihe River is arduous and significant." The relevant person in charge of the municipal water conservancy department said that from the perspective of our city, a large number of water conservancy projects need to be transformed. Xinmin shoal and Shaobo Lake shoal groups, which are blocked by the river channel in our city, need to be cut off in a large area; The levees above grade III along the line need to be constructed in an all-round way to eliminate risks and meet the standards; The protective banks of Lake embankments shall be completely changed into mortar block stones to improve the wave prevention capacity; Pakachetan, new construction, reconstruction and reinforcement of dike crossing buildings, etc. "Therefore, of the total investment of 3.034 billion yuan in the whole line, 1.8 billion yuan needs to be invested in Yangzhou section."

EMS grivory said that the flood control standard of Yangzhou will be comprehensively upgraded. The flood control standard of our city will be greatly improved after the completion of the Huaihe River waterway regulation project. Among them, the flood control standards for the Canal West embankment to the north of Shaobo lock, the Yunyan river east embankment from Shaobo lock to Shaoxian lock, and the gaoshui river east embankment to the south of Shaoxian lock are 100 year return period; The flood control standard of Huxi levee, liaojiagou East levee and mangdaohe West levee of Guijiang river is once in 30 years; The flood control standard of liaojiagou West embankment, Mangdao river east embankment, Jiajiang embankment, Beijing Hangzhou Grand Canal East embankment and West embankment, Gehu River West embankment in Guijiang river is once in 50 years, and the flood control standard of tributaries into the river is once in 10-20 years. The project area can resist earthquakes of magnitude 7

after the implementation of the Huaihe River waterway regulation project, the urban flood control standard of our city will be improved, which will play an important role in the flood control of our city and Baoying, Gaoyou and Jiangdu cities. After the completion of the wutagou spillway project, one of the key projects of the Huaihe River waterway into the river, it will form the urban flood control circle in the West and north of Yangzhou City, so that the flood in the hilly area of 14.6 square kilometers north of the mountain and river will return to the channel and be diverted to the west to wutagou into the river, and the flood threat to the urban area caused by the flood overflowing in the hilly and mountainous areas in the northwest will be eliminated. After the implementation of Gaoyou Yangzhuang river pumping channel, Shaobo Lake cutting beach, Wanfu gate reinforcement, small and medium dikes and buildings reinforcement, Guijiang river revetment reinforcement and other projects in the Huaihe River channel, the flood discharge channel will be more unblocked. Baoying, Gaoyou and Jiangdu are widely used in aerospace, petrochemical industry, machinery manufacturing, wires, cables, textiles, fibers, plastics, rubber, ceramics The pressure of metal materials and manufacturing industry on urban flood control and discharge will be greatly relieved

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