UAVs, ground-penetrating radar... Guangzhou uses "black technology" for Spring Festival road maintenance

UAVs that can inspect difficult terrain such as high slopes from the air; ground-penetrating radar that can detect whether there is hollowing out in the ground through reflected wavelengths; that can clean up to 50 to 60 meters long at one time A new type of dredging truck for sewage pipe silt... On January 15, we walked into the daily routine of the Changping Maintenance Station under the Dongcheng Maintenance Station of the Guangzhou Road Maintenance Center, and observed closely the comprehensive road maintenance carried out by the Municipal Road Maintenance Center during the 2020 Spring Festival. maintenance actions. ?

Staff at the Dongcheng Maintenance Station use ground-penetrating radar to detect roads. This instrument can find underground voids.

It was learned at the scene that in order to provide good services for the Spring Festival in 2020, the Guangzhou Road Maintenance Center, guided by party building, organized party organizations at all levels to give full play to their role as battle fortresses and carry out the "Spring Festival Party Flag Red" themed activities. Ensure the safe and smooth flow of managed roads and safe passage of tunnels and bridges during the Spring Festival travel period. With model workers, party members, and technical backbones as the main force, various party organizations have established emergency support teams such as the "Spring Festival Security Smooth Vanguard Team" and "Youth Commandos" to carry out activities such as Spring Festival maintenance and cleaning, road area improvement, volunteer services, and convenience services. At present, the emergency support team has sounded the rally call and is engaged in various tasks to serve the Spring Festival Transport. During the 40-day Spring Festival Transport work, the emergency support team will be at the forefront and fulfill the duties of highway workers to "maintain roads and ensure smooth traffic" Responsibilities and missions to fully serve the Guangzhou Spring Festival. ?

On the Guangzhou-Shantou Highway Chuangchuang Avenue Overpass, three road maintenance workers wearing reflective overalls are standing in front of a special spray truck, holding high-pressure water cannons and brooms to spray the bridge Wash and clean the soundproof screens on both sides of the section. "Due to the lack of rain in winter, the guardrails and soundproof screens on the bridge accumulate a lot of dust, so we usually clean them regularly." A maintenance worker at the Changping Maintenance Station learned that in order to ensure that the highway ancillary facilities are clean and tidy, the Municipal Road Maintenance Center Cleaning of soundproof screens will be organized regularly, and guardrails, soundproof screens and other facilities along highways that are contaminated by vehicle exhaust and dust will be cleaned. ?

On the section of Guangshan Highway from Huangma intersection to Changlong Village, a sewer dredging truck and a dredging truck are cooperating with each other to carry out the operation of dredging sewer sediment wells. A dredging truck equipped with a high-pressure water gun is parked at the first wellhead to wash away the silt in the sewer pipe. When the silt is washed to the next wellhead, the dredging truck lifts the silt and removes it.

“In the past, there was no such equipment as a sewer dredging truck. Once the sewer was clogged with silt accumulation, it was necessary to descend the manhole for manual dredging. The operating environment was very harsh and toxic gases may be produced, which is dangerous. "A maintenance worker is cleaning up a well water pipe behind a clearing truck. After using these two new special maintenance vehicles, the maintenance workers no longer have to risk their lives and can clean the 50- to 60-meter-long pipes. The dredging operation of sewer pipes can be completed in a short time, realizing the transformation of sewer dredging from manual operation to mechanized professional maintenance: "We will regularly clean the water inlets, sediment wells and other drainage facilities along the highway to ensure The drainage system is smooth and the road is safe for driving.” In addition to these large special maintenance vehicles, road maintenance staff on site demonstrated new smaller equipment such as drones and ground-penetrating radar, demonstrating the technological level of highway management and maintenance. . Standing next to a ground-penetrating radar similar in shape to a small trolley, the relevant person in charge of the Changping Maintenance Station said: “When the staff conducts geological hazard inspections on sections that have undergone pipeline operations and subway operations, they only need to push this The ground-penetrating radar moves forward slowly at a constant speed, and by observing the reflected radar waves on the display screen, it can determine whether there is a hollow under the road surface."?

A 24-hour duty system is implemented to ensure smooth roads

It is reported that during the Spring Festival travel period, the Municipal Road Maintenance Center carried out inspections and management of hidden dangers on highways and ancillary facilities, strengthened the maintenance of traffic safety facilities, carried out special rectification of highway safety, strengthened highway inspections, cleaning, and facility maintenance, and carried out inspections of bridges, tunnels, and culverts. , technical inspections of slopes, retaining walls, etc.

Improve the emergency response mechanism for emergencies, prepare sufficient emergency facilities, emergency equipment and emergency supplies, strictly implement a 24-hour duty system, and have the Spring Festival Security Smooth Pioneer team on call 24 hours a day to do a good job in ensuring smooth traffic during the Spring Festival to ensure that our highway conditions are at a consistent level and The service level will be further improved in all aspects to ensure smoother roads during the Spring Festival travel period.

Han Yongnian, 37, is from Tengchong, Yunnan. He is a car driver and maintenance worker in the professional maintenance team of Changping Maintenance Station. During the Spring Festival in 2020, he will continue to work hard at his job from the beginning of the year to the sixth day of the new year, staying on duty with his colleagues. Since special equipment such as maintenance trucks and road rollers require 2 to 3 people to operate at the same time, the unit needs to leave enough manpower on duty every year to deal with various emergencies on the road. I also plan to work at the unit on the night of New Year’s Eve Spending the New Year’s Eve dinner with colleagues: “The Spring Festival came early this year. The peak traffic period on the Guangzhou-Shantou Highway starts from the end of December to the beginning of January. Our daily inspections have also been intensified, extending to one day. We conduct regular inspections twice to ensure smooth roads during the Spring Festival travel season.”

This article is from the author of Autohome’s Chejiahao and does not represent the views and positions of Autohome.