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Study on the Seepage Control Schemes of the Dagang Mountain High Arch Dam and Underground Powerhouse

Author: DuanBin
Tutor: HeJiangDa
School: Sichuan University
Course: Geotechnical Engineering
Keywords: Seepage Seepage control scheme Fractured rock mass High arch dam Underground powerhouse Drainage holes Three-dimensional finite element Dagangshan hydropower station
CLC: TV223.6
Type: Master's thesis
Year: 2006
Downloads: 201
Quote: 1
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Abstract


Seepage analysis and control technology engineering safety and economic rationality , an important part of Seepage Control Scheme of hydraulic building design . The object of this paper Dagangshan hydropower station is located in the Sichuan Shimian territory , is one of the Dadu River planning the recent development of large-scale hydroelectric projects , the use of concrete arch dam Layout Scheme combination of underground plant , power station normal water level is 1130m , maximum dam height of about 210m, the storage capacity of the normal water level of about 7.42 × 108m3 , power station installed capacity of 2,600 MW . Various types of dykes and faults of the hydropower plant dam area is developed , and the rock mass are also developed in 5 fracture group , controlled by these factors , complex hydrogeological conditions in the factory of rock mass permeability characteristics in space has obvious partition banding and anisotropic characteristics . Therefore, only by calculation and analysis of Dagangshan hydropower plant dam area of seepage field , in order to reflect more realistically the plant dam area of ​​natural seepage field characteristics as well as construction and operation of different anti - seepage and drainage measures changes in seepage field , which seepage control scheme Dagangshan hydropower decision-making is essential. In this paper, ANSYS software platform, using three-dimensional finite element method plant dam area seepage field and seepage control measures for quantitative evaluation and optimization of the construction period and operation period of the Dadu River Dagangshan hydropower plant dam area the different seepage control measures and programs , effect , the main work and characteristics are as follows : (1) according to the the factory dam area engineering geological and hydrogeological conditions , natural seepage field of plant dam area inversion analysis , to determine the natural seepage field percolation model , infiltration parameters and boundary conditions , as the construction period and operation period seepage Control Scheme of the basis . (2) the research plant dam area and construction of three-dimensional seepage field , analysis of seepage field characteristics of the construction period , the effect of the evaluation of the construction of seepage control measures and make appropriate proposals for work . 3 study at the dam area of operation of the overall model of the hub different seepage control program of three-dimensional seepage field by comparing

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CLC: > Industrial Technology > Hydraulic Engineering > Hydraulic investigation of hydraulic design > Foundation and its reinforcement > Foundation penetration calculation and test
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