After the rain, in the mountainous area of Lingshan County, the fog has not yet dissipated, and the working face of the upper reservoir foundation is already busy. The excavator ran over the wet and soft construction access road, and the workers bent down again to clean the accumulated water and silt on the warehouse surface - this was the first time in recent times that the foundation had been cleaned repeatedly, and no one on site was willing to count it. As the first concrete truck slowly entered the warehouse and the vibrating rod was inserted and compacted, the first concrete pouring of the upper reservoir dam foundation of Qinzhou Pumped Storage Power Station in Guangxi, constructed by Hainan Branch of China Anneng Group First Engineering Bureau Co., Ltd., was successfully completed. The timely implementation of this critical milestone means that the project has officially entered the stage of tackling the construction of the main dam project.

The warehouse noodles snatched out of the rain

The dam base is the foundation for bearing and stabilizing the dam body, and can be regarded as the cornerstone of the entire dam. It is a critical foundation structure of the project. The construction process in this area is complex and the quality control standards are strict, which is crucial for the stability, durability, and anti-seepage effect of the dam body.

The first pouring of the warehouse faces multiple practical tests: there are defects in the construction geological conditions, frequent rainfall leading to repeated foundation cleaning, intensive cross operation, and difficulty in construction organization and coordination. In the face of challenges, the project department coordinated and optimized personnel and equipment material allocation, repeatedly refined special construction plans, completed technical disclosure, copper water stop welding process testing, base surface cleaning, steel reinforcement fabrication and installation and other pre processes in advance, and strictly organized warehouse surface acceptance to make sufficient preparations for smooth pouring.

A matter of truth in the slightest

The entire pouring process adheres to standardized and refined construction principles. Technical, quality, and safety management personnel are on duty throughout the entire process, strictly controlling key processes such as concrete mix ratio, warehousing temperature, layer thickness, vibration quality, and warehousing maintenance. They closely monitor every construction detail, firmly grasp the safety and quality checkpoints, effectively resolve various construction risks, and complete the first warehouse pouring task with high standards.

Charge towards the main project

The Qinzhou Pumped Storage Power Station in Guangxi is located in Lingshan County, Qinzhou City. It is a national key energy project in the 14th Five Year Plan and a key clean energy benchmark project in the national pumped storage medium and long-term plan. The total investment of the project is about 7.86 billion yuan, and the planned installed capacity is 1.2 million kilowatts. The upper reservoir is the core control project of the power station, with a normal water level of 453 meters, a total storage capacity of 12.12 million cubic meters, and a catchment area of 0.94 square kilometers. The dam body adopts a comprehensive anti-seepage system consisting of asphalt concrete core wall, concrete anti-seepage wall, and curtain grouting. The main construction content includes key and difficult sub projects such as asphalt core wall rockfill dam, inlet and outlet, reservoir bank protection, and dam foundation treatment. The technical standards are high and the construction system is strong.

After the power station is put into operation, it will fully utilize the important functions of the power grid such as peak shaving, valley filling, energy storage, and emergency supply guarantee, effectively optimize the regional energy structure, reduce carbon emission intensity, and provide reliable power support for the green, low-carbon, and high-quality development of the Beibu Gulf Economic Zone.keywords:Engineering infrastructure

Next, all builders of the project department will continue to maintain a proactive and breakthrough attitude, anchor annual construction goals, strictly adhere to the two bottom lines of safety production and engineering quality, steadily promote the construction of subsequent main projects, and make every effort to create a safe, high-quality, green and efficient high-quality clean energy project.Editor/Yang Meiling