›› 2009, Vol. 30 ›› Issue (S1): 175-179.

• Geotechnical Engineering • Previous Articles     Next Articles

Intelligent optimization analysis of excavation and support sequence of tailrace tunnel for Shuibuya Project

LI Hong-dong   

  1. College of Architecture and Civil Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027, China
  • Received:2009-05-10 Online:2009-08-10 Published:2011-03-16

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Abstract:

For electing tailrace tunnel area in Qingjiang Shuibuya underground power plant, a 3-D numerical model is established; multiexcavation and multireinforcement construction scheme are designed by orthogonal design; excavation and support are simulated; displacement and plastic zone in surrounding rocks of large cavern group under complicated geological conditions are studied. Evolutionary neural network is used to predict the other schemes and optimize global schemes; integral stability criterion is constructed ; and the global stability of large cavern group is analyzed. As a result, the most optimal scheme is obtained, which provides references for design and construction.

Key words: orthogonal design, numerical simulation, evolutionary neural network, integral stability

CLC Number: 

  • O 242
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