The strongest desert highway in history, 40 earthen machines pushed 150 days of sand!

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Introduction: What do you think of in the face of the vast Taklama -Ganan desert? Is it an extremely rare precipitation, or the yellow sand flowing at all times or the strong light of the sun? Even the inaccessible Jedi, such as the Taklama Gang Desert, can't stop the powerful infrastructure madness. Recently, the Desert Highway Sky Tuan ushered in a new member "Wei and Highway".

The real scene of the Taklamagan Desert

At the end of June this year, Xinjiang Wuwei Highway Line S254 Wei Pingzhizhi and the last highway were officially opened to traffic. The total length of the road was about 334 kilometers, of which about 307 kilometers of the desert road section was also the third desert of the desert of Taklama Gan in my country. highway. How can the huge engineering challenge be overwhelmed by the construction environment with stacking of sand mountains, water -free, electric, and signal, no signal, no signal, no signal, no signal, no signal, no signal, no signal, no signal, no signal, no signal, no signal, no signal, no signal and no signal, how can the huge project challenge gradually overcome? What are the highlights of the project?

Wei and the road connect to Weili County and the Mochi County, located on the Tarim Basin between the south slope of Tianshan and the northern foot of the Alkina. It fully crosses the hinterland of the Taklama -Ganan desert, with a total length of about 334 kilometers, of which 307 kilometers of the desert section. It is the desert road with the longest mileage in the world, the widest distribution of flowing dunes, the worst construction conditions, and the most difficult construction. It has become the third road that crosses the Taklama Ganan Desert in my country that has been opened to traffic.

Taklamagan Desert Map

1. The first step through the sea of ​​death is "cutting the hill and pushing the mountains"

Beginning with a thousand miles began, then starting with the flattening base of Shashan.

At the construction site of Wei and Highway, you can see the wonders of fighting with nature. The huge and horsepower of the soil machine roared around the towering sandbags. The 40 earthen machines pushed the flowing sand for 150 days.

The average soil amount and accumulation of the Shathan Mountain in the Taklama -Ganan Desert are relatively high, and the transport distance is far away. In addition, the impact of high temperature weather has caused great difficulty in construction. If you want to build roads in such a boundless sandy sea, you must first push the dunes.

"Samsung Pushing the Fa" overcome the big dunes

Since starting the construction, the construction staff has become a realistic version of "Yugong". It has also encountered a very strong "block tiger". Shashan stretches forward for 1 kilometer, the amount of excavation exceeds 1.2 million cubic meters, and the excavation depth has reached more than 30 meters. To this end, the construction project department has added 5 high -horsepower bulldozers, and a total of 15 earthen machines have taken turns. When there are many mountains and sand, they use the "peeling onion" to lower the sand mountains.

"Peeling onion" style to cut down Sands Mountain

When the flatness of the sand mountain reaches the construction standard, we woven the fabric on the road pushing the Shathan, and at the same time, it is covered with gravel and crushed to build a basic road. The intermediate connection process is a very important part. Due to the high liquidity and strong wind of the desert, if the interval is too long, it will bring a very serious pressure on the background work. Large, affect the overall construction progress.

The scene of flattening Shashan Building Base was very shocking

Second, the grass grid is the key

The desert is a magical place, and any life here may be swallowed up by quicksand. If you do n’t control it, then the rolling yellow sand will give you a fatal blow in any neglect. The road must be fixed in the road in the desert, otherwise the wind and sand will be buried in the entire road. The maintenance of the road is a great Debuff.

The grass plaid around the road

my country has achieved very good achievements in the development of desert highways in desert highways.

Wei and Highway are the third desert road in my country, so they also summarized and borrowed the advanced successful experience of the first two desert roads. After a detailed scheme design and verification comparison, Wei and Highway began to build a grass squares protection project across the board. First, a sandproferent obstacle prevention is built on the periphery of the sand dunes on both sides of the road base, blocking some flowers, and then laying the grid to block the flow sand to block the flow sand in the stream sand to block the flow sand to block the seliocytic sand in the stream sand. Outside the road.

The front -line construction personnel of the grass production under the desert is

The so -called "grass square" is actually a square -like windshield with reed materials on the flowing sand dunes. By making the ground rough to reduce the wind, block the sand, and protect the soil and soil. Construction on such undulating sand, large machinery is basically not available for use, so this link basically relies on manual operations.

Under the cold and extremely hot conditions of the desert, the construction personnel must first carry the reeds weighing 70 kilograms into the desert, draw the construction square network on the dunes, and place the neatly trimmed reeds on the square line. The middle of the reed bush was embedded in the sand, and the grid of 1 meter in length and width was finally formed.

The Taklama Ganan desert has many desert winds, and the dunes are large. Only the grass squares on both sides of the road base have wider and more solid, and the protection ability can be stronger. At 100 meters on both sides of the peripheral road of the grass square, wooden stakes are used as columns, nylon nets are used as fabrics, and the two are tightly tied together with fine iron wires to build a solid sand -proof fence to form a number of numbers to form a number. The green barrier of 100 kilometers is also the first "line of defense" to block the wind sand.

After molding

Third, repeated experimental problems, the science and technology team made great contributions

The natural conditions along the desert highway are extremely bad, and many road building materials that can be taken on the spot are very scarce here. Effectively using the widely distributed windy sand in the desert as the main material filled in the roadbed is undoubtedly the most economical and reasonable choice. From the analysis of the nature of the physical and chemical properties, wind accumulation sand is generally a special nature of sand formed in the arid areas. It has characteristics such as fine granules, loose, non -sticky, low natural water content, poor water retention, etc.

With the development of large -scale transportation construction in Xinjiang, the mileage of building roads in the desert areas is getting longer and longer, and the research on windy storms needs to be further improved and refined. Life life.

During the construction process, the desert highway cooperated with a number of scientific research units during the construction process to analyze the compact mechanism of the windy sand circuit base. Combined with a series of indoor test comparison of windy strokes, we fully understood the windy stroke sand as the road base as a road base. The mechanical characteristics in the compacking process laid the foundation for the construction of the road, and also left valuable knowledge and wealth for the construction of the global desert highway.

The result curve map obtained by using windy strokes for practical test

Conclusion:

The establishment of the road is not only the feat of crossing the sea of ​​death, but also a economic belt in Xinjiang's hinterland. It effectively improves the situation of long travel distance, high living costs, and difficulty in sales of agricultural products. At the same time, this series of string Highways with multiple tourist attractions will also attract more tourists to Xinjiang.

At the same time, this route crossing the area is the rich and enrichment zone of the Tarim Basin's oil geology, which will provide strong support for the exploration, development, and transportation of petroleum and gas in the future. It will be of great significance to promote the development of advantageous resources along the route and economic and social development.

Laying a molding captain and a highway

references:

[1] Jingli Jun. Deeply open the "Miracle Road" in the depths of the sand and sea [n]. Bayin Guo Leng Daily (Han), 2022-06-30 (004).

[2] Jingli Jun. Gobi Tsukong Longlong, deserted to develop new power [n]. Bayin Guo Leng Daily (Han), 2021-12-31 (005) .doi: 10.28041/n.cNKI.NBYGL.2021.001451.

[3] He Guofeng. Wei Li to and the desert road wind accumulation sand filling road base pressure strength research [J]. Hunan Transportation Technology, 2018,44 (02): 81-84.

[4] Li Zhiqiang, Wang Guoqing, Yang Sen, Ju Guannan. Desert sand concrete performance and stress-Stress-Stress Test Relations [J].

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