Wuhan Nanni Bay Avenue renovation BIM technology runs through the whole process, and intelligent signal network managers enter and exit to create a benchmark for smart construction sites

Figures of Nanyi Bay Avenue Construction Correspondent Pictures

□ Chutian Metropolis Daily Ji Dao Journalist Ma Qingni Correspondent Xia Xiaoren

In the past few days, Wuhan Nanni Bay Avenue (Third Ring Road -Hanxi Third Road) renovation project site, the heat is hot. The total length of the project is about 5.98 kilometers, of which the second standard section is 3.1 kilometers. It is undertaken by Wuhan Bridge Engineering Co., Ltd.. Transformation, etc.

Since the start of the project in September 2020, the second target of the project's second standard team has sprinted with the three major goals of safety production, construction site construction, and epidemic prevention and preservation. The interview with Jimu Journalists learned that the project took BIM technology as the starting point and built the "smart network" to escort the high standards of the project.

■ BIM application allows construction

From the construction site of Nanni Bay Avenue from Hanxi Third Road, the reporter saw that the viaduct has been erected, and the drainage and road parts have basically taken shape.

The project manager Zhang Haibo said that the project across urban construction areas, the construction requirements are extremely high, and any actions cannot be lost. In order to ensure the quality of construction, the project team decided to penetrate the BIM technology throughout the construction process. The first time after entering the field, the project team invited a professional BIM training teacher to start the two -month BIM technology application skills training for the project personnel, and established a total of 125 clan storage for pile foundation, Chengtai, bridge pier, and box beam for the viaduct.

According to the explanation, this is equivalent to refining a Lego finished product into a piece of components to facilitate the construction in the later period. There are examples of evidence: Improving the content of the drawing through BIM modeling will be improved. The project department "predicts" 6 high programs on the top of the pier pillar and 3 steel structure interference issues, which avoids later rework.

This project is full of technology. For example, it is made of pile -based reinforced cage. The reinforced sample software is used for rapid samples with reinforced cage BIM samples, and the reinforcement formula is exported to make the steel cage produced in each section. "You" ensure the quality of the finished product.

In addition, the project also uses BIM technology for preliminary geological survey and optimizes the pile method; through three -dimensional modeling, the BIM traffic guide reform scheme is simulated to the Gutian Second Road and Gutian 4th Road intersection to facilitate transportation.

■ Smart enclosure and weaving security "protective network"

The project has passed through multiple intersections. The traffic flow is extremely large, and the safety construction pressure is heavy.

The construction of the viaduct section, overload and high pendant are two major risk points. To this end, the project team adopts a high -end model system -selected 8 -united box beams, each box beam is arranged at 1/4, 1/2, 3/4, respectively. Demonstration of templates, rod shaft force and rod tilt angle, and overall horizontal displacement of the brackets perform real -time monitoring, and use prefabricated ladder cages during the pier construction to ensure stable bridge structure and safety.

"In the construction area, there is an invisible 'signal network." Mei Kai, the person in charge of the project technology, said that in the closed area of ​​the project department and the living area, the gate channel and face recognition were used for real -name management; The construction area, combined with satellite map+GPS positioning, sets up the "electronic enclosure" covering the entire line. When the personnel entered the scene, the mobile phone GPS positioned automatic testing whether the workers entered the construction attendance area. After confirming that they entered, they used the WeChat mini -programs to "labor punch card" to face the attendance attendance. In the later period, the project will also be equipped with 300 smart helmets.

Mei Kai said that 13 ball machine cameras were installed on the spot. Through video surveillance and AI intelligent identification technology, they dynamically captured the scenes of unwavering helmets, unspeakable clothes, and unattended masks to eliminate hidden dangers.

■ Automatic dust reduction to create a green and beautiful construction site

The dust noise device monitors real -time monitoring. The full -hardening road surface is flat and refreshing, the fence spray is sprinkled with a silk water mist ... The reporter came to the construction fence on the side of Gutian Second Road.

According to reports, the project will link the monitoring equipment with the spray device. When the dust detection index exceeds the standard value, the spray device can be automatically started, or it can be manually turned on by the mobile app to reduce the dust in the field.

In order to allow workers to have a better living environment, in the project life area, the cafeteria, shower rooms, laundry rooms, etc. are available, and property companies have also been hired to conduct professional management of project living areas and office areas.

In summer construction, in order to do a good job of heatstroke and cooling, set up a pergola and tea room within the construction site, and the class shouted in front of the class every day to inform the construction operation content and the risk factors of the operation area. Under the premise of quality and progress, the operation time is reasonably arranged according to the weather.

Up to now, the project has progressed more than half. After the completion, citizens can achieve the entire process from the Third Ring Line Erwan Bay. After the landing on the third road of Hanxi Road, the Yellow Sea Tunnel directly reaches the Central Business District of Hankou. The current 30 minutes may be shortened to 10 minutes.

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