Mountains and rivers intelligent power melting snow black technology

In early January, Beijing received its first heavy snow of 2020, with 4.2mm precipitation and 4cm of snow. Beijing daxing airport immediately activated the emergency mechanism, since the night of the 5th continued to carry out the apron, runway, taxiway snow removal operations.

On the other hand, the snow covered tarmac of daxing airport 11 is a different scene. There are no busy figures or snow removal machines, but the ground is clean without any snow. What kind of black technology is this? Why is the scenery so good?

Original daxing apron underground applies state-of-the-art airport 11 geothermal snow-melting technology: will L geothermal catheter inserted into the underground, the bent into a bar, intraductal heat-conducting medium, efficiently will see 15 degrees of ground temperature, thermal conductivity to the airport runway surface, when the snow without any external energy and equipment can quickly automatic melting of snow on the ground. At that time, the ground temperature melting snow foundation construction was completed by shanhe intelligence two special drilling equipment for ground temperature conduction technology SWDE120R subsurface hole cutting rig construction.

As a pilot project, the 11 helipad of daxing airport requires the completion of 4,800 holes in one month, and the drilling conditions and requirements are very strict. Hole position accuracy requirements: hole spacing accuracy error ± 5mm, the verticality error shall not be greater than 0.5 degree; Drilling efficiency requirements (rotary cutting method) : the pure drilling efficiency of pouring concrete and stone bedding is 0.4m/min; The pure drilling efficiency of clay silty soil and sandy silty soil is 3.5-4m/min.

At 3:00 PM on November 15, 2017, as soon as the shanhe smart drilling rig arrived at the site, it was immediately assembled and tested. The first hole was drilled at 5:00 PM, and the first hole was drilled at 5:11 PM. In the field with a temperature of -4 ℃, from debugging, testing and drilling until 11 o 'clock at night, people and machines are working all the time. The professionalism of the team and the work efficiency of the equipment were praised by the supervisor as soon as they entered the field.

In the following construction process, shanhe intelligence two SWDE120R drilling machines, one hole every 15 minutes on average, four holes an hour, after a month of intense construction, overcome the test section in the ancient river channel, water silt layer, easy to collapse hole difficulties, as scheduled to complete the task. The high performance of shanhe intelligent drilling machine in the field, as well as no dust emission during drilling operations have been highly recognized by CAAC chief engineer li and airport construction headquarters bai.

The first heavy snow in Beijing in 2020, we witnessed Beijing daxing airport. Ground temperature melting technology ” The efficiency of the pilot project, without any snow removal equipment or additional energy, the snow will melt automatically. In the future, ground temperature snowmelt technology will be widely used in airports, highways, football stadiums and other places in the north, and the advanced equipment and engineering methods of shanhe intelligence will continue to provide a guarantee for the promotion of this technology.

The phoenix spread its wings and pursue the dream of the blue sky. Behind the magnificent project of daxing airport, the wisdom and hard work of countless people have been condensed.

Previous: The "innovation alliance" led by lei wo was rated as the "benchmark" of national agricultural science and technology innovation.

Next: Perfect finish! XCMG road machinery sales hit a new high in 2019!