The San Gabán 3 Hydropower Plant is located in Puno Province, southeastern Peru, and serves as the downstream cascade hydropower station on the San Gabán River. Jointly invested and constructed by China Three Gorges International, a subsidiary of China Three Gorges Corporation, and the China Hydropower and China Latin America Capacity Cooperation Fund, the project has a total installed capacity of 209.3 MW. The plant adopts a concentrated head power generation method with a low dam and long diversion system situated within the mountain body on the right bank. The rated head is 630.71 meters, with an average flow of 51.21 m³/s, reduced to 38 m³/s when operating at full capacity. The designed power generation capacity is approximately 1.25 billion kWh annually, equivalent to reducing 338,000 tons of carbon dioxide emissions, providing significant environmental benefits while addressing southern Peru’s electricity demand and promoting local economic development.
Our company was responsible for constructing the anti-seepage wall and executing foundation vibroflotation treatment works. The project achieved the following milestones:
The project commenced successfully and delivered high-quality results, meeting all design specifications and contributing to the plant’s operational efficiency and long-term stability.
The Yangtze River Main Dike Reinforcement Seepage Control Project (5th Bid Section, Hanyang C Segment) is part of the critical Wuhan Yangtze River main embankment reinforcement initiative conducted during 2000–2001. The project focuses on the seepage control works of the C section along the Hanyang riverside embankment.
The design specifications included an anti-seepage wall with a thickness of 30 cm and a depth ranging from 12 to 15.97 meters. The project site is an earth embankment section, featuring a concrete pavement on the embankment top and a wave wall on the water-facing side. The embankment section spans a total length of 3,900 meters, with a designed anti-seepage area of 45,800 m². Classified as a Class II embankment on the mainstream of the Yangtze River, the reinforcement works encompassed seepage control and related engineering tasks.
Construction commenced on February 25, 2001, and was successfully completed on May 7, 2001. Key works involved drilling 79 pilot holes with a total footage of 1,337.1 meters, constructing a deep mixing diaphragm wall along the 3,900-meter embankment, and performing high-pressure rotary jet grouting and pendulum jet grouting over an area of 2,000 m². Upon completion, the project met all design requirements and contributed significantly to the embankment’s structural stability and flood control capabilities.
