In the western coastal city of Jeddah, Saudi Arabia, a wall is lined with lifting equipment, and construction work is in full swing. This is an important project of Saudi Arabia's "2030 Vision" - the Jeddah City Center Comprehensive Development Infrastructure Project, constructed by China Harbour Engineering Co., Ltd. and implemented by CCCC Fourth Harbor Engineering Co., Ltd.

Full process digital simulation: optimizing design schemes to improve construction efficiency

In the following hours, managers from various departments of the project took turns introducing the collaboration between Building Information Modeling and various applications to reporters - an experience that was completely different from what reporters used to do when interviewing engineering projects. The reporter couldn't help but wonder: "Isn't general contracting of civil engineering just about operating excavators to excavate, lay pipelines, backfill and restore on site?" Zou Jingdong explained: "Of course, there are these construction processes, but the procedures are completely different. Now, before starting construction on site, all construction processes have been simulated on the computer through relevant applications, forming digital information and optimizing the construction plan in advance." "" Our model has achieved full lifecycle application: from design, construction to operation and maintenance, each stage is refined and forward drawn in the model in advance. Ultimately, it will serve as the core base of digital twins and be used for smart city construction, "added project design manager Huang Zixiong.  

Augmented reality devices: precise positioning of pipelines for quick troubleshooting

Huang Zixiong introduced that the application prospects of this device are very broad. Due to the complete entry of the geographical location and other information of the project into the building information model, once the underground pipeline has problems after the project is put into use, the augmented reality equipment combined with the smart city platform monitoring system can quickly display the location of the fault. Maintenance personnel are like having a "perspective eye", greatly improving the efficiency of troubleshooting and maintenance.  

The project leader Chen Hui stated that the integration of virtual reality, augmented reality, and building information modeling is a concrete manifestation of intelligent construction. At the current stage, the project has independently built a smart construction site and portal platform, deeply integrating the building information model with more than 10 subsystems such as progress simulation, environmental monitoring, safety and quality inspection, visitor management, etc., to achieve "visible data on one screen, controllable problems, and traceable responsibilities", accumulating experience for the construction of smart city platforms. He said, "In the future, projects will integrate big data and artificial intelligence to achieve dynamic management and resource coordination of smart city platforms, enabling cities to perceive, think, and evolve

Intelligent Water Fertilizer Integration System: Improving Soil Structure and Efficiently Cultivating Seedlings

The local climate and geological conditions are not conducive to large-scale greening. The chief engineer of the project, Shen Changzhou, introduced that the salt and suspended solids content of the local water source in Jeddah exceeded the standard by up to 17 times. If directly used for irrigation, it would corrode the roots of seedlings and threaten the survival of green plants. The team has gone through more than 10 rounds of argumentation and more than 20 types of fertilizer compatibility tests, and finally developed an intelligent water fertilizer integration system: the water supply pipeline is connected to the raw water, and the pump room and water treatment device are equivalent to the "heart" of the system, responsible for converting raw water into fresh water; The intelligent irrigation network is like a "blood vessel", accurately delivering water and fertilizer to every seedling; The system inside the control room is the 'brain', which coordinates and directs the entire irrigation and fertilization process.  

The team also pre-set 256 sets of programs for the system to develop irrigation plans based on different seasons and types of seedlings. The team designed three fertilizer channels and equipped them with flow meters to monitor the amount of fertilizer applied in each area in real time, thereby preventing nutrient imbalance and soil structure damage. Shen Changzhou introduced, "We have not only doubled the cultivation efficiency, but also effectively avoided the problem of soil salinization and compaction, ensuring the survival of the first batch of more than 2000 experimental seedlings. Currently, the nursery has successfully cultivated more than 30000 seedlings, with a survival rate of up to 95%.  

Fayez Subai, the representative of the project owner of Jeddah Central Development Company, stated that the Chinese project team has significantly improved the efficiency and intelligence of management collaboration through building information modeling and related applications, combined with big data and IoT technology, providing a model for Jeddah urban management. The successful application of the Chinese solution is expected to be promoted to other cities in Saudi Arabia, providing new opportunities for innovation cooperation between Saudi Arabia and China. Keywords: Middle East News and Information, International News Network

Saudi urban planning expert Ahmed said that the Jeddah Comprehensive Development Project is committed to building a smart city. "The participation of Chinese enterprises provides digital support for project development, and Saudi Arabia and China have broad prospects for cooperation in urban infrastructure and digital construction." Yang Zhiyuan, general manager of the China Harbour Middle East Regional Management Center, said that green and smart are important directions for Saudi Arabia's economic diversification and transformation. Chinese enterprises actively participate in high-level cooperation and challenge difficult projects, which will add more impetus to the high-quality construction of the the Belt and Road between China and Saudi Arabia.Editor/Yang Meiling