NDLI: Research on Optimization Method for Underground Cavern Excavation

Content Provider	IEEE Xplore Digital Library
Author	Kang Bian Ming Xiao
Copyright Year	2009
Abstract	Base on elasto-plastic finite element method (FEM), the excavation methods for underground caverns are researched and optimized. The plastic dissipated energy of surrounding rock is presented as a general factor to judge the rock stability. The more plastic dissipated energy is produced, the more the surrounding rock is disturbed by the excavation, the worse the stability of the rock will become. Furthermore, the volumes of cracked zone, the plastic zone and the rebound zone of rock are also important criterions to evaluate the advantages and disadvantages of different excavation methods. Afterward, the proposed method of excavation is applied in Changheba Hydropower Project. The results of numerical computation show that the excavation time of the upper part of the surge chamber will influence the whole surrounding rock stability. The proposed method provides an effective way for the optimization analysis of underground cavern excavation.
Starting Page	269
Ending Page	272
File Size	687483
Page Count	4
File Format	PDF
ISBN	9780769538044
DOI	10.1109/ICICTA.2009.532
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stability underground cavern Laboratories Optimization methods Hydroelectric power generation excavation method Capacitive sensors Finite element methods Tensile stress optimization analysis plastic dissipated energy Plastics Water resources Power engineering and energy
Content Type	Text
Resource Type	Article

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