A variety of construction robots show their talents on the construction site

The brick-laying and transporting robot is moving bricks.

Photographed by Li Can

Concrete wall polishing robot.

Photographed by Changjiang Daily reporter Zhang Zhi

Changjiang Daily News (Reporter Zhang Zhi, Correspondent Liu Tao and Cui Dongyue) A variety of construction robots entered the construction site to show off their skills: On June 2, at the construction site of the China Urban and Rural Headquarters Economic Industrial Park in Wuhan Economic Development Zone, the average brick-moving robot could To move 3.6 cubic meters of bricks, the work efficiency is comparable to that of 4-6 workers.

China Urban and Rural has built a headquarters base on the bank of Houguan Lake in Wuhan Economic Development Zone. This is an economic and industrial park project of China Urban and Rural state-owned enterprises in Han. Among them, the project plans to build a 188-meter-high headquarters building, which will be constructed by China Communications Construction Group Co., Ltd.

In April this year, CCCC Construction’s China Urban and Rural Headquarters Economic Industrial Park project spent more than 700,000 yuan to introduce three construction robots to replace labor. They were used to carry bricks, polish internal concrete walls, and seal screw holes. After nearly two months of "actual" testing, the three construction robots not only improved work efficiency, reduced workers' labor intensity, shortened the project construction period, but also effectively reduced dust, noise and other environmental pollution and safety hazards. The person in charge of the Wuhan Construction Engineering Safety Supervision Station said that construction robots are widely used in Wuhan's construction engineering field, and the engineering construction in this park is the first pilot project.

On the 2nd, a reporter from Yangtze River Daily saw at the construction site of the project that a pink brick-laying robot picked up 24 stacked bricks at one time and moved the bricks in parallel according to the set program. Go to the location set by the system and put it down gently, saving the manual process of loading and unloading bricks. According to on-site technicians, the brick-laying handling robot has functions such as visual recognition, automatic loading of bricks, automatic taking the elevator upstairs, and automatic loading of bricks, which greatly improves the work efficiency of heavy processes, saves manpower and shortens the construction period.

Guo Jingang, project manager of the China Urban and Rural Headquarters Economic Industrial Park of CCCC Construction, pointed out that the bricklaying work of the project was previously carried out by construction workers using bucket trucks. First transport the bricks to the bucket truck, then attach the cart to the elevator to go upstairs, and finally reach the target floor and place the bricks. The bucket truck can transport up to 7 bricks at a time. During the brick loading and unloading process, there is not only loss, but also environmental pollution problems such as dust and noise. After we introduced the robot, we arranged for the brick-moving robot to work at night and transport the bricks to the designated location in advance. After going to work the next day, workers can start construction directly, which greatly shortens the construction period. ”

Guo Jingang said that after using the "brick-moving robot" at the construction site, it can work 24 hours a day. In addition to the investment of one-time equipment, it only requires 7 kilowatt hours of electricity for 6 to 8 hours of full load operation. Equipped with 2 batteries, it can basically achieve all-day construction.

In the past, workers had to polish concrete walls, using ladders for high-altitude parts, and the smoothness of the polished wall completely relied on the skills of the workers. A concrete internal wall polishing robot is used, which can automatically lift and carry out construction at a height of up to 3.2 meters, while ensuring that the wall flatness error is within 2 mm. A screw hole sealing robot can block 100 screw holes per hour on average, which is equivalent to the workload of 8-10 workers for one hour. The sealing construction is accurate and there is basically no need for rework.

According to Guo Jingang, preliminary calculations show that the cost and benefit of using three construction robots are equivalent to those of manual labor, which made the project department aware of the advantages of intelligent construction. In the future, the project also plans to introduce a variety of robots such as wall plastering robots, screw bracket installation robots, indoor spraying robots, wall tile paving robots, and exterior wall spraying robots to free workers from heavy physical labor. Use green and low-carbon digital intelligence technology concepts to empower project safety and quality standardization construction.

Source: Changjiang Daily

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