Scientific and Technological Achievements Evaluation Meeting held by the CSRME 

From April 21 to 22, 2021, three scientific and technological achievements evaluation meetings were held under the organization of the CSRME.  On April 21, the evaluation meeting was held on the project of "Key Technology and Application of Monitoring, Warning and Control of Collapsing and Seepage Disaster of tunnel surrounding rocks in complex stratums. This project studied the major engineering challenges for collapse and seepage monitoring, warning and control in complex tunnel surrounding rock, through engineering research, theoretical analysis, indoor tests, numerical simulation and on-site trial. It provided an effective guarantee for the safety of tunnel construction, had significant economic and social benefits, and also played a positive role in disaster prevention and control for similar tunnel constructions in China.  On April 22, The evaluation meeting on "Key Technology of Stability Control of Surrounding Rock of Giant Underground Powerhouse under Complex and Extreme Geological Conditions in Wudongde" was held. The project conducted an in-depth research based on Wudongde Hydropower Station. Through theoretical analysis and on-site testing, this project systematically studied the key technologies for the excavation, support, surrounding rock stabilization of the Wudongde giant underground powerhouse, to ensure the surrounding rock safety and stability of the underground powerhouse cavern group. The study was authorized more than 80 patents and 31 construction methods, and published more than 50 papers. The research results provided key technical support for the safe construction and operation of giant underground cavern group in China.

On April 22, the evaluation meeting on "Key Technologies for the Utilization of Rocks in the Confined Space of Kaifuxia Hydropower Station". Through comprehensive means of aerial survey, numerical analysis, indoor trial, on-site testing and monitoring feedback, this project systematically studied the key technologies of the precise survey, dynamic design, and fine construction for hydropower hub building under environment and space restrictions. The study developed a complete set of control methods and technologies for China's overseas hydropower construction, including precise survey, dynamic design and fine construction.