Analysis of Surge Shaft Excavation Process Based on 3-Dimensional Finite Difference Method

Zhen Zhong Shen; Ning Wang; Nan Yao; Chao Xin Shao

doi:10.4028/www.scientific.net/AMM.620.69

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 620Analysis of Surge Shaft Excavation Process Based...

Analysis of Surge Shaft Excavation Process Based on 3-Dimensional Finite Difference Method

Abstract:

As an important part of the structure of hydroelectric power station, surge shaft is embedded in the rock mass, whose body size and loading conditions are typically complex. Thus, it is necessary to evaluate safety of the design scheme in order to ensure construction safety. With upper background, three dimensional finite difference model of the surge shaft and surrounding rock of a hydroelectric project in Zambia were established based on three dimensional nonlinear finite difference analysis method. Calculation of the surge shaft stepped excavation with supporting at all levels of the construction process was done. The deformation and stress state of the surrounding rock of surge shaft and its variation law in excavation process was analyzed. Furthermore, the stability of surrounding rocks and rationality of the designed support measures were evaluated.

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Periodical:

Applied Mechanics and Materials (Volume 620)

Pages:

69-74

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.620.69

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Online since:

August 2014

Authors:

Zhen Zhong Shen*, Ning Wang, Nan Yao, Chao Xin Shao

Keywords:

Deformation, Excavation Process, Finite Difference Method, Stress, Surge Shaft

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