scholarly journals Meticulous simulation and evaluation of seepage control effects at right bank dam foundation and underground powerhouse of Jinping I hydropower station

2018 ◽  
Vol 189 ◽  
pp. 022021
Author(s):  
Wenjia Tang ◽  
Jiamin Hong ◽  
Xinzhou Huang
Keyword(s):  
Hydropower Station ◽  
Dam Foundation ◽  
Underground Powerhouse ◽  
Seepage Control ◽  
Jinping I Hydropower Station ◽  
Simulation And Evaluation

Study on Seepage Control in Complicated Hydrogeological Conditions on the Right Bank of JinPing-I Hydropower Station

2014 ◽  
Vol 686 ◽  
pp. 132-141
Author(s):  
Yan Wu
Keyword(s):  
Three Dimensional ◽  
Control Measures ◽  
Hydropower Station ◽  
Element Analysis ◽  
Underground Powerhouse ◽  
Factors Affecting ◽  
Seepage Control ◽  
Hydrogeological Conditions ◽  
Jinping I Hydropower Station ◽  
The Right

With consideration of the special hydrogeological conditions and layout characteristics of the hydraulic structures, the seepage control measures of dam abutment and underground powerhouse on the right bank of JinPing-I hydropower station is drawn up. Based on the three dimensional finite element analysis of seepage control with dry area virtual flow constant mesh analysis method, the rationality of the seepage control measures of dam abutment and underground powerhouse has been verified and the key factors affecting the effect of seepage have been compared. In combination with the curtain of dam abutment, the curtain of underground powerhouse is reasonable. The results showed that the steel liner of penstock after the curtain is necessary.

scholarly journals Engineering rock mechanics practices in the underground powerhouse at Jinping I hydropower station

2016 ◽  
Vol 8 (5) ◽  
pp. 640-650 ◽  
Author(s):  
Aiqing Wu ◽  
Jimin Wang ◽  
Zhong Zhou ◽  
Shuling Huang ◽  
Xiuli Ding ◽  
...  
Keyword(s):  
Rock Mechanics ◽  
Hydropower Station ◽  
Underground Powerhouse ◽  
Jinping I Hydropower Station

Research on the Optimization of Dam Foundation Seepage Control System

2012 ◽  
Vol 594-597 ◽  
pp. 1143-1148
Author(s):  
Jun Wang
Keyword(s):  
Control System ◽  
Optimization Design ◽  
Hydropower Station ◽  
Sand Layer ◽  
Dam Foundation ◽  
Stage Design ◽  
Processing Scheme ◽  
Seepage Control ◽  
Curtain Grouting ◽  
The Right

The starting time of Dragonite hydropower station in Dadu River Sichuan delayed, which led to the depth of the cofferdam cut-off wall reduced in actual construction. In order to adapt to this situation, it’s necessary to optimize the processing scheme of sand layer dam foundation which is put forward in the feasibility study stage. Combined with the characteristics of engineering, considering to reduce or cancel the curtain grouting in coarse grain granite foundation of riverbed on the right bank in the feasibility stage design, this paper is aimed to study on the optimization design of Dragonite hydropower station dam foundation. The paper has not only a great guiding significance in engineering construction process, but also gives references to the similar earth-rock dam project for treatment of sand layer dam foundation and the arrangement of dam foundation seepage control system.

scholarly journals Deformation analysis of underground powerhouse of a large hydropower station based on FLAC3D

2021 ◽  
Vol 632 ◽  
pp. 042033
Author(s):  
Shuai Ma ◽  
Taosheng Huang ◽  
Xiaojun Bao ◽  
Zhiyuan Wang ◽  
Haotian Zhang ◽  
...  
Keyword(s):  
Hydropower Station ◽  
Deformation Analysis ◽  
Underground Powerhouse

scholarly journals Study on Vibration Transmission among Units in Underground Powerhouse of a Hydropower Station

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3015 ◽  
Author(s):  
Jijian Lian ◽  
Hongzhen Wang ◽  
Haijun Wang
Keyword(s):  
Low Frequency ◽  
Field Tests ◽  
Vertical Vibration ◽  
Transmission Mechanism ◽  
Structural Vibration ◽  
Hydropower Station ◽  
Fe Model ◽  
Vibration Transmission ◽  
Underground Powerhouse ◽  
Mechanical Models

Research on the safety of powerhouse in a hydropower station is mostly concentrated on the vibration of machinery structure and concrete structure within a single unit. However, few studies have been focused on the vibration transmission among units. Due to the integrity of the powerhouse and the interaction, it is necessary to study the vibration transmission mechanism of powerhouse structure among units. In this paper, field structural vibration tests are conducted in an underground powerhouse of a hydropower station on Yalong River. Additionally, the simplified mechanical models are established to explain the transmission mechanism theoretically. Moreover, a complementary finite element (FE) model is built to replicate the testing conditions for comprehensive analysis. The field tests results show that: (1) the transmission of lateral-river vibration is greater than those of longitude-river vibration and vertical vibration; (2) the vibration transmission of the vibrations that is caused by the low frequency tail fluctuation is basically equal to that of the vibrations caused by rotation of hydraulic generator. The transmission mechanism is demonstrated by the simplified mechanical models and is verified by the FE results. This study can provide guidance for further research on the vibration of underground powerhouse structure.

Sign in / Sign up

Export Citation Format

Share Document