Yuncheng Salt Insurance Center launched the Salt Lake Water System Research Day 263

Overlooking from a high place, the North Gate Beach and Nitigo Beach East and West of Tongli Beach are east and west.

The picture comes from the full picture of He Dongyanchi in 1915. It is now hidden in the National Library of China

The beach was born by weir. There is a nitric pool weir on the west of Yanchi and a Qilang weir. The nitric pond weir is surrounded by the nitric pond beach, and the Qilangyan is surrounded by Beimen Beach.

It is said that there was an Zhuodaoyan in the past in the east side of the Qilangyan near Yanchi. Now it is basically abandoned, and some of the disabled can be seen in faintly.

Standing in Qilangyan to look at Zhongzhishan (the right is the north gate beach, the left is the salt pond)

Standing on Qilangyan to the south, there is the north gate on the west, and not far from the east side is salt pond. The two are two or three kilometers apart. There are channels in the middle. After the North Gate Beach is full, the water can always be east through this channel, and then turn to the south to the north of Xiezhou Social East Village, and then enter the salt pond.

According to historical records, during the Northern Song Dynasty Yuanfu and Chongning period (AD 1098 to 1106), observing Wang Zhongxian built 11 dyke weir including Qilang Weir on the east, south and west sides of Yanchi. To this day, some of these dykes have played an important role.

During the 11th year of the Eleven of the Ming Dynasty (1413) to the fifteenth year (1835) from the Qing Daoguang (1835), the floods directly invaded the salt ponds for a total of 11 disasters, with an average of about 32 years.

During the 11 floods, in the underworld incident of our distressed Heihe, the water inlet was near Beimen Beach.

According to the Qingyan Book, in July and August of the 22nd year of Qianlong (1757 AD), there were too many autumn rain, Qilang, Zhuo Dao and other weir rushed, and the western forbidden walls were more than 50 feet, Naozana salt pond, Heihe was being quilt Flooded.

The picture comes from the 30th year of the Qing Daoguang (1850) Shanxi Shandong Salian Pond picture is now hidden in the National Library

The literature comes from the 54th year of the Qing Dynasty (1789) "Hedong Salt Law Preparation"

The Heihe is the basic raw material of "inexhaustible and inexhaustible" of the salt of the tanning pool. It is known as the "mother of salt". The influx of the pour of the guest water caused a sudden drop in salt output.

At this moment, there are birds flying over the North Gate beach. Qilangyan was twisted, and the surrounding water surface showed a little beauty. There are different sizes of ponds outside the weir, fish and shrimp in the pond, and the flocks are leisurely for food nearby.

It was thought that the "yellow dragon" that rolled in that year had been raging here, and could not help feeling the importance of flood prevention.

The North Gate Beach is located west of Yanchi and north of Xiezhou. It is separated from the Qilangyan and Zhuodaoyan in the east to the Yanchi. Its basin area is 73 square kilometers, 331.961 meters above sea level, and the surface area is about 2 square kilometers.

From far and near (Dongtan, Namong Pu Railway, Midan Beach, Lin Mo Road, West Beach)

The north gate of the Nantong Pudu Railway and the Lin Mo Line divided the Beimen Beach into Dongtan, Middle Beach, and West Beach. The east of the railway was Dongtan, the middle beach in the middle of the railway and the highway, and the west of the highway is the west beach. These three beaches are connected from east to west, and they are connected to each other through railway and highway culverts (in order to ensure that Dongtan does not enter the water, the railway culvert has been blocked), and the area is decreasing in order. Among them, Dongtan is 1.7158 million square meters, the middle beach is 30,400 square meters, and the Xidan is 288,900 square meters, with a total area of ​​2.3051 million square meters.

From the perspective of the library capacity, the Xidan reservoir capacity is 454,000 cubic meters, the middle beach library capacity is 325,000 cubic meters, the Dongtan library capacity is 3.05 million cubic meters, and the total degradation capacity is 3.829 million cubic meters.

Around 2000, the north gate beach was dry and water, and the bottom of the beach was flat. In the memory of a local physical education teacher in Xiezhou, the fine sand washed through the beach all year round, in his hands, felt soft and fine, stepped on barefoot, comfortable and comfortable. Sometimes in physical education, he will lead the students to run over, go to the bottom of the beach, and do various bare hands and physical activities on fine sand.

"Later, the rain was abundant, and the water on the north gate beach accumulated again, and it rose up. The beach water swayed and sparkled; the fish in the water swimming, sometimes jumping out of the water, and sometimes diving into the water. , Stretching into the distance; the breeze blows, with the moist water and gas ... "The beautiful scenery described by the sports teacher made people feel like. No wonder the water conservancy experts of peers believe that creating wetland parks here has unique natural conditions.

Historically, the main role of the Beimen Beach is to gather the area south of Yao Saushan and the northern foot of the Nakajo Mountain to protect the salt pond. After the founding of the People's Republic of China, due to the needs of urban drainage, it also undertakes rainwater sewage in the old town (Nancheng District) that is excreted in the direction of normally nitrate canals.

Visit the Beimen Beach Pump Station on the spot

After the flood season, after the rain and sewage in the central city of Yuncheng City entered, the North Gate Beach became a transit station between the two. It co -forms the flood prevention system west of the salt pond with the nitrate beach, the normal nitric canal, and the third -level drainage pumping station. The nitric pond beach was drained to Yao Saho through the nitrite beach through the West Third -level drainage pumping station, and then leaked to the lake of Wu. The water of the surname of Wu passed the Yongji City through the river of the Laushui River and finally entered the Yellow River.

The rain and floods of the surrounding farmland on the south side of the North Gate Beach and the surrounding farmland are extremely limited. To enable the drainage pumping station to draw to the nitrate beach next to it. However, due to the poor water quality and limited external arrangement, the North Gate Beach and the Pond Beach have been in a high water level for a long time. The flood control library was severely occupied, and there was nowhere to be stored after heavy rain. In order to ensure the safety of the life and property of the people's lives and property of the people of the people of the North Gate Beach and the Nitchi beach dam and the surrounding villages, the North Gate Beach will have to open the water to Yanchi to put water in Yanchi. Essence In the process of heavy rainfall in the fall of 2021, in just a few days, the water level of the two beaches rose rapidly, which led to the highest water level of the highest water level in Beimen Beach 0.16 meters, and the highest water storage level of the nitric pond beach. When it comes to 0.44 meters, it has a great threat to the safety of the Tongpu Line Railway, which will directly lead to the reduction of passenger and freight trains through the suspension.

In order to ensure the safety of the two beaches and surrounding villages, and the main traffic lanes, our city had to open the North Gate Beach to control the gate to put water to the salt pond. As of November 10, the amount of displacement reached tens of millions of cubic meters, resulting in a sharp rise in salt pond water levels.

It can be seen that once heavy rainfall occurs in the basin, the two beaches will soon rise, which will quickly rise, which will be greatly threatened on salt pond safety.

North Gate Beach drain into the nitrate beach through the pump station

During the investigation, we saw at the Beimen Beach Pump Station that several water pumps were running. In the loud sound, the water of the North Gate Beach was continuously drained to the nitrate beach next to it.

The person in charge of the pump station Lian Lianjun said that recently they have been draining water, the purpose is to leave the warehouse early to ensure that the water level of the Beimen Beach is at least 50 cm, which is 50 cm lower than the railway culvert to welcome Maybe floods.

As of late June, the west water level in the north gate beach was 334.09 meters, and the library capacity was 100,000 cubic meters; the water level in the north gate beach was 333.82 meters, and the library capacity was 90,000 cubic meters. Generally speaking, Beimen Beach is currently 400,000 cubic meters, the total library capacity is 3.829 million cubic meters, and the remaining library capacity is 3.429 million cubic meters.

According to reports, before the flood season this year, in order to ensure the safe operation of the nan Tongpu line train, the Municipal Water Affairs Bureau built a new cross -transport permanent road tube culvert with a diameter of 1.4 meters, increasing the flood discharge to Yanchi; Water allows it to maximize the urban rainwater and keep it at the lowest water level to ensure the safety of the lines between the south Tongpu Line shop to Xiezhou Station.

Lian Xingjun said that the Beimen Beach is one or two meters lower than that of the beach. The middle and west beach water in the middle can be discharged directly to the nitrate beach. And never let the outer water go in, the purpose is to protect the salt pond. At present, Dongtan's water surface height is 333.48 meters, which is lower than the flood limit of 333.8 meters. The reason why the water in the middle and the west beach is still lining to Nititan (about 10,000 cubic meters per day) is to make more library capacity response to the flood season, so as to be "preferred and useless. And unprepared. "

"When the sky falls heavy rain, sometimes the sewage treated by the west sewage treatment plant will be discharged directly. In addition, there is a breeding plant nearby, and the discharged water can also enter the West Beach through a dark culvert. Therefore, the water quality here is It is difficult to meet the standards. Last year, the waters of the Xidan was 335.8 meters. Since ancient times, the west waters have flowed east and the north water south. If there is heavy rain floods and surrounding farmland waterlogging, they can only be discharged to Yanchi. After all, people's life is the first. "Lian Lianjun said that the water in the Wulongyu Reservoir was brought together by Jiugou Eighteenth, the middle of the middle of the middle, and there was no water yet. Villagers around the car, Beijia and other surrounding villagers destroyed alkaline water (drainage grooves), and the weeds in the river have not been cleaned up. Although the flood pressure on Beimen Beach is reduced, for local villagers It is a problem.

Water conservancy experts suggested that in order to cope with the flood season, the north gate beach and the nitric pond beach should be discharged as soon as possible, and the water level should be reduced to the flood limit or below, and it is fully prepared for flood storage during the flood season.

In fact, the water that is discharged from the Beimen Beach and the Pond Beach is currently only expedient. For a long time, the most important and most important thing is that it should be fully implemented in the central urban area, especially the Nancheng District, especially the rain and sewage system, so that the water entering the North Gate Beach is the water to meet the standards, so as to achieve the sustainable virtuous cycle of water resources. road. This is the rule of cure!

Zhang Tong Zhao Xinnan Xue Jixin

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