Key Technology of Dam Cofferdam filling Construction of Sanghe II

The upstream and downstream Cofferdams of phase II of Sanghe hydropower station have large filling quantities, tight construction period, high filling intensity and strict quality requirements. Therefore, it is very important to pay close attention to the filling construction control. Based on this, combined with the actual cofferdam filling construction of the project, this paper makes a detailed exploration on the key technologies of dam cofferdam filling construction of hydropower station for reference.