Exploration of Integrated Application of Highway Maintenance Technology in Desert Gobi in Xinjiang

Recently，Xinjiang Uygur Autonomous Region held“Innovation leads to promote high-quality development of highway maintenance in an all-round way”On-site exchange meeting，Starting the Gobi Desert Region in Complex Environment（Xinjiang）Pilot task of building a strong highway maintenance and transportation country，Strive to 2025，Maintenance application technology from the current“Scatter type、Extensive type、Uniqueness”Application direction“Integrated、Intensive、Low carbonization”Application transformation，The maintenance technology system with regional characteristics has been basically formed.，Set up“Status detection+Dynamic monitoring+Long-term performance observations”Multi-scale detection and monitoring system，Achieve multiple dimensions、Multi-level scientific and precise decision-making。

The Department of Transportation of Xinjiang Uygur Autonomous Region has formulated《Gobi desert region in complex environment（Xinjiang）Task Division Scheme for the Pilot Project of Highway Maintenance and Transportation Power Construction》，The pilot project of highway maintenance guarantee mechanism and technology research and application under complex environment is put forward.、Pilot Study and Application of Highway Maintenance Management System under Vertical Management and Diversified Operation、There are three main tasks in the pilot project of digital research and application of highway infrastructure in complex environment areas.，The responsibilities and division of labor of each unit are clarified.。

For freezing rain and snow in winter、Frequent disasters such as avalanches in special sections，The pilot units will focus on the application of economical and applicable snow-proof maintenance technology.，To form a snow-proof maintenance guarantee mechanism and a complete set of technologies, including highway snow disaster emergency warning technology.。Aiming at desert highway wind erosion、Wind and sand disasters such as burying，The pilot units will further optimize the design system and construction technology of highway sand prevention.，Formation includes“Solid、Resistance、Sparse、Guide”Guarantee mechanism and complete set of technologies for sand prevention and maintenance, including comprehensive control and maintenance technologies for highway sand hazards.。

High intensity of ultraviolet radiation in Xinjiang、Freeze-thaw cycles are frequent、Salt erosion is strong in some areas.，Pilot units will focus on research“Freeze and thaw+Ultraviolet+Salt erosion”Durability Guarantee Technology of Asphalt Pavement under Environmental Coupling，Improve the durability of asphalt pavement，Prolong the service life of pavement，Strive for pilot application in 3 to 5 typical sections by the end of 2027。

“Fourteen five”Since，Xinjiang's national and provincial trunk highways have invested a total of 90% in maintenance.300 million yuan，The efficiency of highway maintenance management has been gradually enhanced.。Next step，Xinjiang will make full use of trafficBIMTechnology，Deep mining of existing construction and maintenance operation data resources，We will strive to build a digital integrated application platform for highway maintenance by the end of 2024.，Achieve a comprehensive plan、Daily maintenance、Maintenance engineering and other highway maintenance management business、Digital application of the whole process。

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