›› 2011, Vol. 32 ›› Issue (4): 1035-1039.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study of similarity theory of geomechanical model test in electromagnetic field

LUO Xian-qi1，CHENG Sheng-guo2，ZHANG Zhen-hua2，TANG Kai2   

  1. 1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, China; 2. Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, China Three Gorges University, Yichang, Hubei 443002, China
  • Received:2010-07-15 Online:2011-04-10 Published:2011-04-29

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Abstract:

Geomechanical model test based on electromagnetic force is one of the newest efforts. Its theory and method test are established with electromagnetic force to simulate gravity or electromagnetic field to simulate gravity field. Geomechanical problem can be studied by the model test of electromagnetic force. Based on three principles of the similarity theory, the similarity criterion of test can be deduced. Using dimensional analysis and equation deduction, similarity criteria of the parameters are obtained as follows: , , , , , , . In the model, the time t and the geometrical dimension l reduce n times; the acceleration of gravity g amplifies n times; the similarity ratios of the other basic material physico-mechanical parameters such as ?，?，?，?，E，c，k，v，q，? are all 1. The geomechanical model test based on electromagnet force can use prototype material of the structure, which can provide convenience in model test operating.

Key words: geomechanics, model test, electromagnetical field, gravity field, similarity theory, similarity criterion

CLC Number: 

  • P 642.22
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