Chapter 1351: Eliminate concerns (please give me a monthly vote)

In view of Zhu Daidong's high standards and strict requirements for the Chuchuan Highway and strict restrictions on the construction schedule, the construction of Chuchuan Highway will focus on the main focus, and multi-task points will be launched at the same time. On the premise of ensuring quality, the road must be repaired at the fastest speed. On the entire highway line, the construction section is between two structures or 200 meters. Each construction section organizes parallel flow operations in combination with the culvert construction, layered filling, layered rolling, and sectioned molding. During the rainy season, construction is arranged in combination with the roadbed filler situation, and one section starts and one section forms.

The quality of the highway depends on whether the roadbed can be repaired well and solidly. The roadbed plays a role in supporting the road surface. If the roadbed is not good, no matter how thick the road surface is, no matter how high the cement ratio is, it is in vain. Once the roadbed collapses, the road surface will inevitably break.

However, before the roadbed construction, the more important thing is drainage engineering. Water is one of the main factors that form roadbed diseases. The strength and stability of the roadbed are closely related to water. When the foundation is immersed in water, the soil filler is too wet, and the water content is higher than the water content, it is difficult to compact the roadbed. For groundwater that affects the stability of the roadbed, even if the design does not make a specific plan, engineering measures such as diversion, blocking, and isolation should be proposed to reduce the groundwater level or guide outside the roadbed range.

For ground water, before the roadbed construction, first do intercepting ditches, drainage ditches, blind ditches, ground water cut off and dilute within the road construction scope. During the embankment filling process, drainage road arches must be set up to remove ground rainwater in a timely manner. Higher fillings must be temporary drainage rapids to prevent rainwater from eroding the slope of the embankment. Temporary drainage during construction should be combined with permanent drainage during the operation stage and constructed simultaneously with the roadbed. During the construction process, a special person should be assigned to perform regular cleaning and maintenance.

Starting from the drainage system and foundation treatment, Zhu Daidong spent some time every day to inspect the construction site. Zhu Daidong is now half an expert in how to build roads. He is more familiar with some theories than some construction workers and engineers.

This time, Zhu Daidong did not mobilize the masses like he did in Yuhua County and Furong County. He only invited a hundred quasi-professional amateur supervisors from Furong County. With the cooperation of Muchuan and the provincial supervision departments, he made every effort to ensure the quality of Chuchuan Highway.

In fact, as long as the municipal government has funds in place, there is no big conflict with the construction companies under the urban investment company in terms of interests, no one wants to deliberately build a bad road. And friendly forces will come to the construction site every day. He is the commander-in-chief of the Chuchuan Highway Project, which is also the first high-standard road he presided over after he arrived in Muchuan. He attaches no less importance to this than Zhu Daidong.

"The mayor of a friendly army, the roadbed clearance is progressing a bit slow." Zhu Daidong said. Every time he came to the construction site, in addition to looking at it himself, he also had to communicate with the construction workers on the site. From them, Zhu Daidong could get first-hand information. He could tell whether the voices from front-line workers were true or false. What made him happy was that whether ordinary workers, supervisors, or business supervisors from Furong County who reported the situation to him, they were very serious about their work and communicated with him sincerely.

Especially the 100 amateur supervisors from Furong County, although they are amateurs and their theoretical level may not be as good as professional supervisors, they work hard and have certain practical experience. The most important thing is that the Muchuan Municipal Government has issued each of them a professionally customized construction technical specification. They can strictly supervise and implement whatever needs to be paid attention to at each stage according to the above requirements.

"Yes, the Chuchuan Highway does not have an old roadbed, so it takes more time to do this. But sharpening the knife does not delay the cutting of wood. Only when this work is done well will the work in the future be meaningful." Shi Youjun said, knowing that Zhu Daidong was in charge of the construction of roads when he was in Yuhua County and Furong County. Although the construction of county-level roads at that time was only county-level roads, the quality of the roads was no less than that of national-level roads.

At that time, friendly troops still remembered that he had visited these two places and Zhu Daidong accompanied him to report his work. But in a blink of an eye, it was his turn to report his work to Zhu Daidong. This is a very magical life experience.

The planting soil on the surface of the ground contains various grassroots and organic impurities, which are prone to rot for a long time, causing subsidence to subside, so the topsoil should be removed for the filling section and the original surface of the excavated section. All the tree roots within the subsidence of the expressway and the first-class highway must be dug out, and the pits should be filled and compacted. After cleaning the surface, it should be leveled and compacted.

In order to ensure the strength and stability of the embankment, soil and stones with good local stability and certain strength should be selected as roadbed fillers as possible. Silt, swamp soil, frozen soil, organic soil, turf soil, domestic waste, tree roots and soil containing humus that affect the roadbed strength. Salt soil, loess, expansive soil, and poor stability after rolling and forming should be restricted.

Chuchuan Highway is a newly opened line. When designing, the shortest distance is used. This road has to pass through farmland and forest land and some grassland, so the requirements for roadbeds are very strict.

"Yes, Chu has a good saying, "Things are three times faster." No matter what happens, if objective laws are violated, you will definitely be able to fake them. Pay special attention to the moisture content at the grassroots level. Now this season is the best time to build a road." Zhu Daidong said with a slight hint of his head. His requirements for the friendly forces of the times are to discuss progress on the premise of first ensuring quality. If there is no quality, what's the use of no matter how fast the progress is?

Compacting when the soil is compacted with the optimal water content can not only reduce the compaction power, but also have the highest density. During the construction process, the moisture must evaporate, so it is appropriate to perform when the moisture content is greater than the optimal water content of 1% to 2%.

The moisture content of natural soil is often close to the optimal moisture content. At this time, machinery should be arranged, and then spread and rolled out and rolled after filling to prevent moisture from evaporating. During construction in the rainy season, the moisture content of soil is greater than the optimal compaction water content. At this time, the soil should be spread and dried to allow the moisture to evaporate, and the moisture content should be detected at any time and compacted at the optimal moisture content.

Now is the clear and cool season of autumn, and the weather is neither cool nor hot. If you have to work overtime at night, there is no problem. Of course, if you need to add water when the natural moisture content is insufficient, you can sprinkle water with a water truck after the paving is initially leveled, mix it evenly with a mixing equipment, and then roll it. You can also water the surface of the soil pit in the soil extraction site one day in advance to make it even seep into the soil. The latter method is relatively low in cost, and the moisture content is even, and the effect is better.

"Yes, we will strictly follow technical specifications. All construction workers have a unified understanding of this." Shi Youjun said that this road is related to the economic development of Muchuan, and the municipal government will put all the funds in place at one time. There is no need for the urban investment company and will not make tricks on quality.

"I remember there was a rice field in front of me. I should pay special attention to the roadbed in the rice field." Zhu Daidong reminded that although the Chuchuan Highway is still only the stage of building the roadbed, he has basically understood all the situation of this road. He knows where there are bends, where there are rice fields, and where there are forest areas.

"Yes, I'm very familiar with the precautions in the rice field. Not to mention the construction workers below, even I am already very familiar with them." Shi Youjun said. Although he was once the leader of Zhu Daidong, he now has a very clear grasp of his current position. It doesn't matter if he jokes with Zhu Daidong in a more private place, but once he enters a public place, he will definitely put his work first. Zhu Daidong is the acting mayor, he is the executive vice mayor, and the executive vice mayor is the main assistant of the mayor. This view is always imprinted in his mind.

Zhu Daidong mentioned the issue of roadbed many times at the meeting, especially for construction in areas such as rice fields, roadbed compaction, loess land construction, and expansive soil areas. This highway is the first large-scale project proposed by Zhu Daidong after he arrived in Muchuan, and there was no external bidding, which put Zhu Daidong under great pressure. Correspondingly, the pressure that Shiyoujun had to bear is no less than that of Zhu Daidong. The current urban investment company will soon become a behemoth. In addition to this Chuchuan highway, the urban investment company will also have to undertake 150 hospitals. At the same time, the city's buses are free, and the management of the Municipal Bus Corporation will also attract people's attention at any time.

If the friendly army was a little negligent, he believed that rumors about him would be spread immediately. His energy and ability were slightly inferior to Zhu Daidong. Therefore, the efforts he needed to do was unimaginable to ordinary people. Although he was the executive vice mayor of Muchuan, his daily working hours have not been less than twelve hours since the construction of the Chuchuan Highway started. Even on weekends, the same is true. In fact, he has been well-versed in the construction technical specifications issued by the municipal government.

"Oh, friendly mayor, can I ask a question? What should I do if I have wet soil rice fields?" Zhu Daidong said with a smile. He knew that Shi's friendly army had worked hard during this period. Every night, friendly army would stay in the office until after 10 o'clock, and Shi's friendly army is now thinner and darker than when he first came to Muchuan.

"Rice fields often cannot be filled directly due to the excessive moisture content of the borrowed soil. In most areas, different doses of lime should be added to reduce the moisture content of the wet soil and improve the plasticity of the soil. The dosage of fresh lime can be determined through experiments. In order to achieve better sanding effect, there are also two methods of mixing ash during construction. In the filling construction, the principle of thin filling and fast pressing should be followed. Mayor of the East, you are an expert in this area. I am right?" Shi Youjun said with a smile.

"Mayor of friendly forces, it seems that I no longer need to worry about the Chuchuan Highway." Zhu Daidong said with a smile. He knew that friendly forces attached great importance to the Chuchuan Highway, but he did not expect that his attention would be so high.
Chapter completed!