Chapter 425 Yu Qingyang is also depressed (seeking a monthly ticket)
Pei Yanbing felt depressed and thought to himself, "Why don't you play your cards according to the routine?"
"Mr. Yu, what you said is very truthful and it is also a very realistic issue. I think Director Liu also has a very headache about this issue!
You spread some dirt and it's easy to clean up, but the smelly mud and black water spilled on the road may make our sanitation workers scold you!" Zhang Hua took the words and said with a smile.
"Mayor, what Mr. Yu raised is really not a trivial issue!
If the roads are covered with smelly mud and black water during construction, our Environmental Sanitation Bureau will really be unable to do anything!
Why don't ordinary people block our door?" Liu Qiyao from the Environmental Sanitation Bureau said with a bitter face.
"Mr. Yu, I think since you brought it up, there must be a solution! Don't hold back, just say it out loud!" Zhang Hua looked at Yu Qingyang and said with a smile.
“There is now a sludge dewatering and solidification equipment on the market!
Just change the current construction technology slightly and transport the sludge through pipelines to the dewatering and solidification point. After dewatering and solidification, use a muck truck to transport it to the designated storage point!" Yu Qingyang said very simply.
River dredging can generally be divided into two categories: dredging with water and dredging without water.
As for the specific construction technology, it is not complicated. Dredgers dig out the silt from the river bottom. Some of them transport the silt to the beach through pipelines for blowing and filling. Some of them are transported by the dredger and transported to a designated location for storage. There is also a
The first type is a flat boat with an excavator on it, which digs silt directly from the river, and then loads it onto a boat that transports the silt and transports it away.
The advantage of this construction technology is that there is no need to cut off the flow and there is no flood control pressure. The disadvantage is that because the silt is all at the bottom of the river or lake, the construction technology that has been popularized at this stage cannot achieve the purpose of complete desilting. Of course, incomplete desilting is also caused by human factors.
factors.
The other method is to cut off the flow and remove the silt. After the cofferdam is cut off, the water in the cofferdam is drained, and then an excavator is used to clean out the silt, which is then loaded into trucks and transported away. This is the construction technology used by the Municipal Water Conservancy Design Institute.
.
There is another process of flow interruption dredging, which also requires drainage, but does not need to drain all the water. It only needs to lower the water level, and then use high-pressure water guns, mud pumps and other equipment to suck away the silt. This process is older than the dredger.
The principle of high-pressure flushing and suction operation is the same. However, this process cannot be used in urban river dredging due to site restrictions.
The Municipal Water Conservancy Design Institute uses the segmented dredging process with flow-breaking excavators. There is a certain degree of selfishness, which Yu Qingyang did not point out.
Because whether it is a cutter suction dredger or an old-fashioned high-pressure suction dredger, the companies affiliated to the Municipal Water Conservancy Bureau do not have these equipment, which means that the old canal dredging construction has nothing to do with them.
I know that there is a dredging office directly under the Department of Water Resources in Jeju City. In fair competition, they will definitely not be able to compete with the Huanghuai Project Dredging Office, which has ships, people and skills. This is something they will never tolerate.
Yu Qingyang knew about their selfishness, but he didn't point it out. When working in front of other people's homes, they had to leave something to eat. At least they couldn't be excluded from the design, as that would make everyone's faces look bad.
The silt solidification and dewatering technology mentioned by Yu Qingyang is not complicated. It is to add a horizontal centrifugal dehydrator, use a high-pressure water gun or high-pressure water jet to mix the silt at the bottom of the river with the river water, and then use a mud pump to pump it up and centrifuge it.
The separation of the dehydrator separates the water from the mud and returns it to the river. The moisture content of the mud separated by the centrifugal dehydrator is much lower than that of the mud directly dug out by the excavator. At this time, the conveyor belt is used to directly
Just load it and transport it.
The cost is higher than directly using an excavator to dig and transport, but it can effectively avoid secondary pollution and damage to the urban environment.
"Mayor Zhang, leaders, you may feel that I am trying to find fault. In fact, I am more depressed than Mr. Liu and Mr. Bai just now! You must know that these conditions or requirements I have put forward will increase the construction cost!
You Jeju City leaders, are you considering giving us some financial compensation?" Yu Qingyang pretended to be depressed and complained to the Jeju City leaders on the rostrum.
"Don't even think about it, we have already negotiated the terms, and besides, these demands were not made by us!" Zhang Hua categorically objected.
"Mayor, yes, financial compensation is impossible. Our Jeju City is not a developed coastal city. We can't wait to spend every cent of our financial money as 5 cents!" Yang Yabin, deputy mayor of the Standing Committee, said with a smile.
"Yes! Mr. Yu, we can write a letter of praise to the Water Resources Department, and then send your company a banner of a conscientious enterprise, and a plaque of an enterprise that abides by contracts and maintains credibility." Liang Yongchao, deputy secretary-general of the Municipal Party Committee, also joked.
Only then did other leaders remember that although Yu Qingyang kept finding faults and faults, the final result was that Huayu invested in increasing construction costs, and it was Jeju City that ultimately benefited. Thinking of this, everyone suddenly became more balanced.
They all laughed too.
"Let me tell you, leaders, your expressions are very bad right now. Our Jeju is the hometown of Confucius and Mencius. Where are your leaders' humility and kindness? Is it really okay for you to behave like this when you are getting an advantage?" Yu Qingyang continued to smile bitterly.
complained.
"Haha! Mr. Yu, don't worry, we the people of Jeju City will never forget Huayu Investment's help to us in Jeju, and we will not let the companies that help us develop suffer! In the future, all investments made by Huayu Investment in Jeju City will enjoy the best
Preferential treatment!" Zhang Hua smiled and drew a piece of cake for Yu Qingyang.
Yu Qingyang rolled his eyes and said nothing.
I thought, without you, who would come to Jeju to invest? Or without you, who would come to Jeju to make such a large-scale investment?
Of course you can't say this.
"Director Pei, the solidification water removal equipment I just mentioned is widely used in southern cities. You can check it out! The centrifugal pump that separates mud and water saves a lot more than buying a dredger!" Yu Qingyang reminded Pei Yanbing.
What I mean is to tell Pei Yanbing, don’t think that I don’t know your little thoughts. Just because I haven’t pointed it out doesn’t mean that I don’t know.
Yu Qingyang did not continue to comment on the design ideas of the Water Conservancy Design Institute. Although he wanted to propose new materials and new slope protection techniques for river slope protection, Yu Qingyang still tolerated it considering the construction cost.
The water conservancy design institute proposed to repair the original sub-trough mortar masonry retaining wall, which is also acceptable. Most of the retaining walls are below the water level.
This section of the river in the old canal city area has two levels of retaining walls.
The sub-trough retaining wall is the retaining wall located on the river bed and submerged or semi-submerged by the river water.
There is also a secondary retaining wall, which is located on the second beach.
This Ertan is not talking about the Ertan Hydropower Station in Western Sichuan Province.
Rather, it refers to the beach land below the stable water level of the river and exposed above the water level.