Recently，The Ministry of Transport launched a pilot project of national highway modern maintenance in Xi'an, Shaanxi Province.，I watched it on the spotGSpecial Maintenance and Renovation Project of 3002 Xi'an Ring Expressway。

Xi'an Ring Expressway is an important traffic hub in Northwest China.，Connected to Bao Mao、Nine national expressways, including Beijing and Kunming, and several national and provincial trunk lines，It undertakes important regional transportation tasks.。Total length 80.35km，6 lanes in both directions，Design speed 120km/h。At present, the daily maximum traffic volume is 11..70,000，3% of estimated flow for design.25 times。For a long time, the continuous growth of traffic flow has led to a significant decline in the technical condition of the pavement.，Especially in the west section, there are cracks in the pavement.、Potholes and other diseases，Urgent need for comprehensive maintenance and upgrading。

The relevant construction party has adopted modern maintenance technology.，In view of the diseases of the west section of Xi'an Ring Expressway, the special maintenance and renovation of milling and resurfacing are carried out.，Open the high-speed around the city with modern technology“Beauty”New model。AtSpreading、RollingPhases，The high-speed around the city took the lead in the application of maintenance operations in the whole province.Digital Intelligent Construction Technology of XCMG，WillUnmanned control and intelligent supervisionClever combination，Really let the pavement maintenance project achieveDigitize、Standardization and intelligence。

Digital Intelligent Construction Technology of XCMGAccuracy of equipment control、Construction efficiency and construction safety, etc.，All of them show obvious advantages.。AdoptBeidou high precision positioning、Inertial navigation、Radar multi-sensor fusionAnd other technologies，Efficient collaboration through intelligent communication systems，Realize the precise control of the construction rolling track，Do itNo pressure leakage、But pressure、No speeding，Guarantee the uniformity of paving、Compaction by rolling and surface flatness，To a great extent, the quality of project construction has been improved.，Promote intelligent construction of roads，Step outDigitize、IntelligenceCuringNew pace。

Implementation of Xi'an Ring Expressway Modernization Maintenance Project，It not only improves the service life and safety of the road.，It has also made positive contributions to environmental protection, energy conservation and emission reduction.。This marks that Xi'an Ring Expressway has entered a new stage of modern maintenance.，It has injected new impetus into the development of transportation in Northwest China.。