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The Research of Seismic for Semi-underground Hydropower House Strategy

Author: LiangChengYan
Tutor: SunMingQuan
School: North China Institute of Water Resources and Hydropower
Course: Hydraulic Structure Engineering
Keywords: Semi-Underground Powerhouse Seism Spectrum method Later pour band Additive mass Stiffness check
CLC: TV312
Type: Master's thesis
Year: 2011
Downloads: 55
Quote: 1
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Abstract


With the consumption of the earth resources, It is paid attention to develop the water resource. Many countries are all developing hydropower institution. The scale of the hydropower station is increasing. Powerhouse can convert the water power into electrical energy. It is very important. There are many electrical and hydraulic equipments. The vibration of equipments and earthquake can give hidden trouble to powerhouse. So, the problem of dynamics for hydropower plant is very important.The paper is about semi-underground hydropower plant of Djiploho in Equatorial Guinea. The two design program for the plant are parting program and Later pour band program. It researched dynamic property and seismic response by model analysis method and seism spectrum method. Then It analysed the effect of boundary conditions of surrounding rock and water addition quality for the dynamic property and seismic response of the plant. In the end, it checked the stiffness of unit brace structure via static and harmonic response method. The conclusion: The later pour band program can reduce the displacement of seismic response for plant, increase the capability of anti-seismic for plant. The stiffness of unit brace structure can meet requirement. The later pour band program is better than parting program for the plant. It is adverse to consider the vibration of surrounding rock and water addition quality for the seismic response of plant. It can react the the seismic response of plant more better, and give more exact reference and theoretical basis for the anti-seismic design of hydropower station plant.

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CLC: > Industrial Technology > Hydraulic Engineering > Hydraulic structures > Structural theory and computational > Structural Dynamics
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