After nearly two years of hard work, the Xinjiang S21 Altay Urumqi Expressway (hereinafter referred to as “a Wu expressway”) under Zhejiang communications group was opened to traffic nearly a year in advance.
Opening the map of Xinjiang, the a’wu expressway project starts from Beitun city in Altay region in the north of Xinjiang and ends in Urumqi in the south, with a total length of 342.538 kilometers, which can shorten the distance from Altay region to Urumqi by more than 200 kilometers, shorten the driving time by an average of 4 hours, and realize the round-trip between Altay region and Urumqi on the same day. At the same time, this expressway runs through the Gurbantunggut Desert, the second largest desert in China, and passes through Gobi, lakes and oases. Therefore, it is also the first desert exploration and tourism Expressway with deep integration of traffic and tourism in China.
One belt, one road, the first phase and the two phase, the two largest tenders, 6 contracts and two phase 3 contracts, were responsible for the first time and the two phase of the first phase of the Zhejiang high-speed railway. The total line was 64.3 kilometers long. The construction of a reply in the northwest of Zhejiang was completed in the northwest of China.
fine management, defining highway construction benchmark
“The desert is lonely and straight, and the long river falls into the yen” is the first impression of most people on the magnificent scenery of the desert. For the builders of phase II 3 contract located in the hinterland of Gurbantunggut Desert, they feel more the hardship of “flat sand into the sky” and “flying snow in August”.
“The biggest challenge of building roads here is the poor natural environment. The phase II project is located in the hinterland of Gurbantunggut Desert. The ecological environment is fragile, the sand is large, and the water and soil conservation is inconvenient. There are often sandstorms during the construction. The construction also faces challenges such as high environmental protection requirements, long route, lack of subgrade construction materials, low grade of highway network and difficult passage of transportation vehicles.” The person in charge of phase II 3 contract project said that the project has more than ten kilometers of routes deep into the desert no man’s land. The extreme high temperature in summer can reach 40 degrees above zero, and the extreme low temperature in winter can reach 40 degrees below zero. There is also a snowfall period of 6 to 7 months, and the effective construction period of the whole year is no more than 6 months; The low grade of highway network in the hinterland of the desert has brought great difficulties to the passage of material transportation vehicles and the transfer of large equipment.
In order to speed up the construction progress of the project, the party members and League members of the two projects took the lead in setting up the “Desert Eagle” commando team to comprehensively arrange the construction period and wall map operations. On the premise of ensuring safety and quality, they actively increased the investment in personnel, equipment and materials and made every effort to catch the progress. In March 2021, the camp of phase II 3 contract project suddenly encountered heavy snow. The snow on the project site and the construction site was continuous and frozen. The “Desert Eagle” commando immediately carried out snow removal and communication operation, effectively guaranteed the travel safety of employees, and flexibly adjusted the operation arrangement to ensure the smooth progress of construction. In addition, due to the difficulty of freezing daily water at the water intake, the commando took the initiative to ensure the daily water use of project employees and industrial workers.
In order to complete the construction task with high quality within two years, we also need the magic weapon of fine management. By continuously strengthening the fine management and the standardized construction of carving Prefabrication Yard, Zhejiang handover has taken the first step in the industrialized construction of the whole line of a Wu expressway. The prefabricated box culvert components assembled on site in the project replaced the construction method of on-site pouring under the traditional mode, greatly improved the pouring efficiency and quality, and completed the prefabrication and erection of all 228 box girders in phase II 3 contract in only three months
Moreover, Zhejiang Jiaogong also actively promoted the application of advanced technology and management concepts across the line. Relying on the characteristic traffic engineering comprehensive product series of “standardized introduction and low-cost construction”, it has successively undertaken various on-site observation meetings such as the first piece of off-line culvert project, Prefabrication Yard and housing construction project, which have been unanimously recognized by units across the line, A new benchmark for highway construction has been defined in Xinjiang.
turn waste into treasure and create a model of green development
In the fragile ecological environment, Zhejiang traffic workers need to play a promising role, build a green and environmental friendly ecological expressway, and add points and color to the country’s first desert adventure tourism Expressway with deep integration of traffic and tourism.
Therefore, the two projects not only do a good job in environmental protection throughout the construction process in accordance with the requirements of the territorial Government, so as not to damage the ecological environment, but also actively carry out two green innovation research topics of highway construction.
The phase I 6 contract, together with local scientific research institutes, carried out the research on the application technology of slag slag calcium carbide slag in highway special soil subgrade, and took the first step of integrating the three slag into the project research in Xinjiang and even the whole country.
Through the application of self-developed waste residue geopolymer cementitious materials, on the one hand, the project realizes the high value-added resource utilization of industrial wastes such as slag and slag produced by industrial enterprises along the line, effectively reduces the burden of waste residue disposal of industrial enterprises, solves the problems of land occupation and pollution caused by waste residue stacking, and realizes green and harmless treatment; On the other hand, it can utilize the silty clay excavated along the project as a resource, which not only facilitates the construction and simple operation, but also realizes the local materials for subgrade construction and effectively improves the construction efficiency.
The application of new materials not only effectively solves the shortage of subgrade construction materials and transportation problems, but also its average production cost is only 20% – 40% of cement, effectively replacing more than 50% of high energy consuming cement and carbon dioxide. At the same time, it can also solve the problem of waste residue treatment along the line, with remarkable economic and environmental benefits.
In addition, the phase I 6 contract also explores the “high-efficiency construction method of aeolian sand filling by temporarily widening the edge soil” in view of the phenomenon that it is easy for the hopper car to miss when carrying out the subgrade filling construction in the desert environment due to the physical characteristics of aeolian sand. The edge soil is used to build the construction access road, which effectively reduces the delay time of hopper car and speeds up the construction period of subgrade filling, It has improved the utilization rate of mechanical equipment, saved more than 8000 litres of diesel and reduced carbon dioxide emissions by more than 20 tons.
We have done a solid job in environmental protection and actively carried out research on green innovation topics. The two projects of a Wu expressway have harmoniously unified engineering construction and environmental protection, setting a model for local green construction.
jointly build enterprises and land and write a new chapter of common prosperity
Adhering to the fine tradition of expanding Xinjiang for ten years, Zhejiang traffic workers not only built a high-quality highway, but also wrote a new responsibility of common prosperity in the depths of the desert.
When nurejihanim hudabaerdi, a phase II 3 contract employee who returned to his hometown in southern Xinjiang during the winter break, mentioned the handover of work in Zhejiang, I was a little worried when I left Kashgar for the first time, but my colleagues in the project Department warmly welcomed me. They not only carefully prepared daily necessities for me and interpreted national policies, but also arranged party members and comrades to act as pairing masters and teach work skills. My heart immediately went to my stomach. “
Nurejihanim said that the income of working in the project department for one month is almost equal to the original half a year. For the transfer of employed labor force in southern Xinjiang such as nurejihanim, the two projects have undertaken a total of 20 and absorbed hundreds of local industrial workers for employment, which has effectively promoted the increase of local people’s income and helped common prosperity with practical actions.
The people of the third company of 102nd regiment of the sixth division of Xinjiang production and Construction Corps, where the phase I 6 contract project is located, always remember the windbreak forest fire that the project helped extinguish in April 2021. That night, the staff of the project department immediately reported the accident to the territorial management committee and the project department after discovering that there was a fire in the windbreak forest of the old fourth company around. The project department shall mobilize the sprinkler to the site at the first time, and organize personnel to assist the Corps staff who arrive at the site to evacuate the surrounding residents. The fire developed rapidly, and it was difficult to put out the fire only by sprinkler. The staff of the project department immediately cooperated with the staff of the local corps and the police of the police station to drag the fire hose to the windbreak forest for more than 100 meters, and finally put out the fire smoothly, avoiding the large-scale loss of the local windbreak forest and protecting the life and property safety of the surrounding residents.
Around the two projects of Zhejiang handover, such good stories continue to be staged: visiting poor villages for many times, trudging for 4 hours to comfort cadres stationed in villages, donating poverty relief materials of more than 10000 yuan, sending epidemic prevention volunteers to assist in nucleic acid detection… Zhejiang handover is duty bound to fulfill the responsibilities of state-owned enterprises in Xinjiang, solidly contribute to local common prosperity, and win the common recognition of the territorial Government and local people.
(source: Guangming Daily client)
