ABSTRACT

’ Hydroctric

Song Changshen

(China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, 300222)

Optimization Design of Memve’ele Hydroelectric Project

Xi Yanlin, Chang Yulong

(China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, 300222)

Powerhouse Rear Slope Stability Analysis of Memve’ele Hydroelectric Project

Wang Jincheng, Xu Jianmin, Hu Ning, Zhang Xuedong

(China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, 300222)

Secondary Electricity Design of Memve’ele Hydroelectric Project

Cheng Xiaokun, Song Lianzhuang, Ma Fei, Sun Lining

(China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, 300222)

ReviewofInvestigationandDesignProcessofMemve’eleHydroelectricProject

Song Changshen

(China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, 300222)

Guided by the ‘going out’ strategy of China, Memve’ele Hydroelectric Project is one of the foreign projects which are financed by Chinese enterprises using domestic loans. Through detailed and careful organization and planning, the designers explore an effective way for project investigation and design, and accumulate some experience for foreign projects. Construction of the project is progressing smoothly, and has achieved good economic and social benefits.

Memve’ele Hydroelectric Project , design process, experience.

OptimizationDesignofMemve’eleHydroelectricProject

Xi Yanlin, Chang Yulong

(China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, 300222)

As a run-of-river power station, Memve’ele Hydroelectric Project adopts EPC contracting mode. During the process of project execution, with the gradual deepening of the understanding of objective natural conditions, the change of external conditions and the development of engineering technology, the project layout, foundation treatment, dam type scheme and design of open channel have been optimized, it gets multiple effects of increasing the installed capacity, reducing the construction risk and saving the cost, the Employer and Contractor have reached a win-win goal.

Keywords:Memve’ele Hydroelectric Project, project layout, optimization design.

PowerhouseRearSlopeStabilityAnalysisofMemve’eleHydroelectricProject

Wang Jincheng, Xu Jianmin, Hu Ning, Zhang Xuedong

(China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, 300222)

Penstock of Memve’ele Hydroelectric Project includes upper anchor block section, inclined pipe section and lower anchor block section. It adopts open pavement and backfill. After excavation of foundation pit, a 52.5 m high slope is formed between the upper anchor block section and lower anchor block section. The rock is mainly gneiss, hard and good in quality; no fault develops at the slope, and it is medium developed or not developed in rock crevice, taking priority to type IV and V structural face, stability of rock mainly depends on the development feature of structural face and its combination relation with the excavated slope.

Keywords:Lujiaba reservoir, slope excavation, structural face, unfavorable combination, stability, shotcrete with mesh reinforcement, deformation monitoring.

SecondaryElectricityDesignofMemve’eleHydroelectricProject

Cheng Xiaokun, Song Lianzhuang, Ma Fei, Sun Lining

(China Water Resources Beifang Investigation, Design and Research Co. Ltd., Tianjin, 300222)

Memve’ele Hydroelectric Project is located on Ntem River in the southern part of Cameroon. It is a run-of-river power station, the powerhouse is of ground and shore type, 4 turbines are installed, with unit capacity of 52.75MW and total installed capacity of 211MW. The external transmission voltage of the power station is 225kV. In combination with the actual conditions in Africa, and considering the comments of Consultation Engineers, it has some different features in design compared with domestic projects.

Keywords:Memve’ele Hydroelectric Project, computer monitoring, relay protection.