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Optimal arrangement for pressure measurement points in working chamber of earth pressure balance shield

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Abstract

In order to exactly provide scientific basis for pressure dynamic balance control of working chamber of earth pressure balance shield (EPBS), study on optimal arrangement of pressure measurement points in working chamber was conducted. Based on mathematical description of optimal arrangement for pressure measurement points, fuzzy clustering analysis and discriminant analysis were used to divide pressure regions of nodes on bulkhead. Finally, the selection method of optimal measurement points was proposed, and by selecting d6.28 m EPBS as study object, the case study was conducted. By contrast, based on optimal arrangement scheme of pressure measurement points, through adopting weighted algorithm, the absolute error mean of equivalent pressure of working chamber is the smallest. In addition, pressure curve of optimal arrangement points presents parabola, and it can show the state of pressure distribution on bulkhead truly. It is concluded that the optimal arrangement method of pressure measurement points in working chamber is effective and feasible, and the method can provide basis for realizing high precision pressure control of EPBS.

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Authors and Affiliations

  1. School of Mechanical Engineering, Dalian University of Technology, Dalian, 116024, China

    Chang Liu  (刘畅), Fu-zheng Qu  (屈福政) & Qing-lin Meng  (孟庆琳)

  2. State Key Laboratory of Structural Analysis of Industrial Equipment (Dalian University of Technology), Dalian, 116024, China

    Shou-ju Li  (李守巨)

Authors
  1. Chang Liu  (刘畅)
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  2. Fu-zheng Qu  (屈福政)
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  3. Shou-ju Li  (李守巨)
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  4. Qing-lin Meng  (孟庆琳)
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Correspondence to Chang Liu  (刘畅).

Additional information

Foundation item: Project(2007CB714006) supported by the National Basic Research Program of China

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Liu, C., Qu, Fz., Li, Sj. et al. Optimal arrangement for pressure measurement points in working chamber of earth pressure balance shield. J. Cent. South Univ. 19, 1883–1891 (2012). https://doi.org/10.1007/s11771-012-1222-z

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  • DOI: https://doi.org/10.1007/s11771-012-1222-z

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