Page - 1300 - in Book of Full Papers - Symposium Hydro Engineering

Changheba Power Station dam and describes the key technology adopted during the dam filling works, which has a reference value on the construction of similar projects. CONCLUSION The application of the new technologies and new techniques in Chang-he Dam project efficiently guarantees the construction quality. The dam was filled to the crest on 10th September, 2016, which is 4 months ahead of the contract construction period. After 13 times quality inspection carried out by quality monitoring station, it shows that the dam filling is totally under control and the quality is well received by experts. At present the dam seepage controlling and deformation both meet the design requirement and the dam is in good operation condition. The systematical construction and quality controlling technology developed from the research on Chang-he Dam construction key technology and engineering practices, the engineering problems in 300m high core wall rock fill dam constructed on thick overburden have been solved and the engineering quality and anti-seepage safety have also been guaranteed. 3 industrial standards are formed, more than 50 national patents are obtained and many national and provincial-level construction methods are also formed. The relevant technologies have been applied in some large-scaled hydropower projects, such as the Lianghekou project and the Shuangjiangkou project. It brings remarkable economic and social and environmental benefits and has wide application prospect. KEY WORDS Core wall rock-fill dam; construction; key technology; new process 1300