The Xiaolangdi Reservoir of the Yellow River discharges sediment, and the Xiaolangdi Reservoir of th

The reason for the sediment discharge of the Xiaolangdi Reservoir of the Yellow River is: because the sediment content of the Yellow River is large, the siltation is very serious when it reaches the middle reaches, and the sediment discharge just washes the sediment to the downstream, so as not to cause the embankment to burst, and it is basically discharged every year, which is very spectacular.

The Xiaolangdi Reservoir of the Yellow River continues to open the sluice gates to discharge sand, and the waterfall carrying a large amount of sediment is like three yellow dragons erupting from the mouth of the sand discharge cave, and the scene is magnificent. The Yellow River is the river with the largest sediment content in the world, and every year the water and sand diversion of the Xiaolangdi Reservoir can attract a large number of tourists to come and enjoy the spectacular scene of "the water of the Yellow River coming from the sky".

Because the Yellow River has a large sediment content, the siltation in the middle reaches is very serious, and the discharge of water and sediment just washes the silted sediment downstream, so as not to cause the embankment to burst. Basically, it's lined up every year. It's spectacular, so let's go and see it when you have time!

It is generally from April to October every year.

The Yellow River flows through the Loess Plateau, and soil erosion is serious, so it has a large sediment content. While the reservoir intercepts the flowing water, it will cause the sediment in the river to accumulate in the reservoir, so the reservoir will discharge the sand regularly. The reservoir itself has the function of transferring water and sand.

Basically, it is all storage and drainage. Generally speaking, the reservoir drainage and sediment discharge should be before the flood season, and there will be every year.

This is this year's news about the sand discharge at the bottom of Xiaolangdi, you can go and see it.

On April 7, it was learned from the Yellow River Water Conservancy Commission that after more than 30 years of survey and design, 10 years of arduous construction and 8 years of initial operation, the Xiaolangdi Water Conservancy Project ushered in the comprehensive completion and acceptance of the state on April 7. The Xiaolangdi Water Conservancy Project occupies a pivotal strategic position in the development and management of the Yellow River, controlling the basin area, 90% of the water volume and nearly 100% of the sediment of the Yellow River. On June 23, 2008, the Xiaolangdi Water Conservancy Hub of the Yellow River in Jiyuan City, Henan Province, carried out water and sand diversion.

The Yellow River flows through the Loess Plateau, with a large sediment content, and if it is not discharged, it will silt up the river, so it is necessary to discharge sand. I'd love to see it.

According to domestic ** reports, the Xiaolangdi Reservoir of the Yellow River.

began to carry out sand discharge operations, and these Yellow River water mixed with sediment gushed out of the sand discharge hole at the outlet of Xiaolangdi Reservoir, and the whole scene was magnificent from the screen display. The purpose of the Yellow River's Xiaolangdi Reservoir is to reduce the pressure on the reservoir and provide a land place to ensure the safety of the inhabitants below, and the sand will eventually be discharged downstream of the Xiaolangdi Reservoir, and then manually treated to remove the sand for the construction industry. <>

The Xiaolangdi Reservoir of the Yellow River is a medium-sized reservoir, the maximum depth of which can reach 29 meters, and its storage capacity can reach more than 100,000 cubic meters, and the junior high school of the Xiaolangdi Reservoir was originally built for local agriculture, and at the same time to prevent floods.

The time cost of manual screening is very high, and manual sand discharge is also a very dangerous thing. <>

And the sand is not untreated after it is discharged downstream. If left untreated, many downstream rivers will be blocked, and in severe cases, the agricultural production of local residents will be affected. So when the mud.

After the sand is discharged to the downstream stage, it is manually screened, and the sediment is picked up by sand mining ships and then transported to the construction market across the country, because the yellow sand in the Yellow River is a very good building material, and it is a very good raw material for the prince. <>

In general, the Yellow River Xiaolangdi Reservoir began to discharge sand This matter has been in a uproar on the Internet, because the whole scene of sand discharge looks magnificent, and the reason why sand is not mined from the reservoir is that the pressure of the reservoir is too large, and artificial sand mining has a certain risk factor, and when the sand in the reservoir is discharged to the downstream stage, then artificial mining is the most appropriate.

The sand will be discharged to the Ganges, because the Yellow River is connected to a small river in the Ganges, and the water of the Yellow River flows out of the Ganges.

The time of drainage and sediment discharge at the Xiaolangdi of the Yellow River is mainly concentrated in the period from June 20 to July 10. During this period, the Xiaolangdi Reservoir of the Yellow River will divert water and wash away the turbidity currents containing a large amount of sediment from the sand discharge holes, leaving the reservoir capacity for flood control.

The sediment discharge at the bottom of Xiaolangdi in Jiyuan, Henan Province is mainly carried out by the method of "artificial disturbance", which disturbs the sediment deposited in the reservoir area, mixes it in the water flow during the flood season, and discharges it with the flood discharge. This approach not only avoids sediment deposition in the reservoir area and reduces the water storage capacity of the reservoir area, but also allows the downstream water flow to have enough power to flush the sediment directly into the ocean.

Xiaolangdi is an earlier water conservancy project in our country, known as the "first dam of the Yellow River in Jiuqu". Since the project was put into use, it has played an important role in flood control and sand control, which not only ensures the downstream flow, but also plays a role in protecting the safety of downstream cities.

Unlike other rivers such as the Yangtze River, the Yellow River is a mother river with severe soil erosion, so the water is mixed with a lot of sediment. The name "Yellow River" is also named because of the color of the river. As a water conservancy project on the Yellow River, Xiaolangdi has impounded floodwater, but it has also blocked sediment, and the water flow in the reservoir area has become gentle, which has also caused sediment to begin to be deposited.

In order to avoid the continuous sedimentation of sediment and let the reservoir capacity be swallowed up little by little, after the arrival of the Yellow River flood season every year, the sand will be discharged at the bottom of Xiaolangdi. Its working principle is not difficult to understand, using the flood power in the flood season to wash away the sediment in the reservoir area and smoothly discharge it into the downstream river.

Relying on natural flood flows, sediment discharge cannot achieve the desired effect, and will also be supplemented by "artificial disturbance". In this way, the sediment deposited in the reservoir area is stirred and suspended in the river water, and then released into the downstream channel along with the floodway.

Xiaolangdi sand discharge flood, the scene looks very spectacular, every year to the sand discharge period, there will be a lot of tourists, admiring this spectacular scene. It is also this design that allows Xiaolangdi to continue to play a role, protect the cities along the downstream coast, and also keep the flow of the Yellow River in a stable state.

The Yellow River is our mother river, and the ability to build a dam in such a river with a large sediment content not only reflects our exquisite construction technology, but also its ability to divert water and sediment, but also highlights the subtlety of architectural design.

It can be carried out by artificial disturbance, through which the sediment is stirred up, so that it can be better discharged.

Xiaolangdi is the second largest water conservancy project in China in the past century, which is to rely on the artificial regulation of large reservoirs with the help of natural forces, and to discharge the silt by regulating and controlling the discharge of water from the reservoirs.

The water discharge and sand discharge of Xiaolangdi Reservoir is generally from mid-June to early July, when the Xiaolangdi Water Conservancy Project officially opens the gate and releases water, and opens the flood dispatching and application mode"The water of the Yellow River came up from the sky, rushed to the sea and never returned"of the magnificent landscape.

Xiaolangdi sand diversion and water release requires a large amount of water (i.e., flood season) to wash away the sand accumulated in the reservoir, and only at that time it is possible to do such a large project, which is inseparable from the design function of Xiaolangdi.

The failure of the Sanmenxia project is mainly manifested in the failure to achieve the main purpose of its original design. The negative impact is mainly manifested in the fact that the dam lowers the flow rate after raising the water level, accelerates the upstream siltation, thereby aggravating the flood in the upstream Weihe area, and the Xiaolangdi dam project of the Yellow River is a remedy after the failure of the Sanmenxia project of the Yellow River, and has sufficient flood discharge and sediment discharge capacity when the water level is low during the flood season.

From the 26th to the 31st, the water level of the reservoir dropped by about 35 meters from 4500 to 5000 seconds on July 1, the largest release in 96 years.

When will the 2020 sand discharge from Xiaolangdi Reservoir end?

In the next few days, there will be water and sand discharge, who knows.

Xiaolang still can't discharge water and sand today?

6. What time will the sand be transferred tomorrow on the 27th?

The key key is about how many sand discharges???