en.Wedoany.com Reported - The downstream excavation face of DT1 diversion tunnel under Package 1C of the Mendareng Hydropower Station in Indonesia was successfully completed recently. The main works of the diversion tunnel consist of two diversion tunnels with a diameter of 13 meters and a total length of 3,478.2 meters. Upon completion, the combined flood discharge capacity will reach 5,760 cubic meters per second, providing a safety guarantee for the subsequent construction of the hydropower station.

During construction, the project team developed a special construction plan and technical support measures based on the site's geological conditions and construction environment. To address challenges such as the excavation face being adjacent to the river and blasting time restrictions imposed by local community regulations, the construction team promptly adjusted the construction organization, strengthened the coordination of key processes, and strictly implemented safety and quality control requirements to ensure orderly blasting operations. Additionally, in response to the unsatisfactory progress of drilling and blasting by the local joint venture partner, Company CU, the project team coordinated resource allocation, provided technical guidance, and arranged existing equipment to assist with drilling, ultimately overcoming difficulties and successfully achieving the diversion tunnel breakthrough.

The completion of the downstream excavation of the DT1 diversion tunnel has laid a solid foundation for the subsequent transition to concrete construction.

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