“In the driverless mode, the equipment can realize the functions of automatic lane change, automatic driving into the construction area, automatic obstacle avoidance, etc.
Unmanned construction not only has amazing efficiency, but also fully meets the construction standard.” For the first time, the Daguang capacity expansion expressway project uses the unmanned paving and rolling technology for pavement construction, and its construction efficiency and construction flatness are praised by the on-site technicians.
The construction efficiency is amazing and the quality fully meets the standard.
In particular, there were no construction personnel during the construction of this road surface, but it was automatically completed by one large intelligent paver and six rollers.
How is the paving and rolling equipment constructed when there is no one in the cockpit? Yesterday, the reporter interviewed the person in charge of the construction of this section.
During construction, according to the parameters such as pavement paving width, roller body width, reserved safety distance, fuselage distance and rolling times, through the preset algorithm program and control strategy, Generate the optimal planning path, accurately monitor the driving track and running state of the vehicle, and output control instructions to the airborne control system to realize unmanned operation.
Accurate detection and control are realized through preset parameters.
The application of this technology has successfully realized the unmanned operation of equipment under complex working conditions, which not only improves the construction efficiency by 25%, but also greatly improves the construction quality, ensures the safety, and reduces the labor cost per kilometer by about 40000 yuan..
just input the correct parameters according to the on-site operation environment and requirements, and can realize accurate operation within a certain range.” Luo Xin, the person in charge of lot AP1 of Daguang capacity expansion expressway project, said.
On January 3, a flat and bright black road surface appeared at the construction site of Jiangxi Nankang Longnan section expansion project of Daguang Expressway.
The operating speed, rolling times and overlapping width of the seven equipment can be set in advance.
Originally, there is a control center not far from the unmanned paver and roller.
“The technical difficulty of asphalt pavement laying is whether it can meet the control requirements of expressway asphalt pavement flatness, compactness and other parameters.
In addition, Luo Xin told reporters: “based on Beidou’s high-precision positioning, inertial navigation and radar multi-sensor fusion technology, unmanned construction has realized the accurate control of construction rolling track to the range of 2 cm, which is much higher than the accuracy of 5 cm of manual operation.” It is reported that the driverless paving is a new attempt of pavement construction technology in our province, which is also the first time to realize the unmanned intelligent construction of Expressway in our province.
