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Vol 211
Pages:
53
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The development of prediction method of earth-pressure balance and earth surface settlement during tunneling with mechanized tunnel boring machines

Authors:
A. G. Protosenya1
N. A. Belyakov2
Ngok Tkhai Do3
About authors
  • 1 — National Mineral Resources University (Mining University)
  • 2 — National Mineral Resources University (Mining University)
  • 3 — National Mineral Resources University (Mining University)
Date submitted:
2014-07-14
Date accepted:
2014-09-06
Date published:
2015-01-01

Abstract

The development of prediction method of earth surface settlement during the tunneling in heavy geological conditions of megalopolises was the purpose of the article.   The experimental-analytical and numerical prediction methods of earth surface settlement during tunneling by mechanized tunnel boring machines are proposed and justified.   The volume balance of earth surface settlement and volume of additionally excavated soil during tunneling are accepted as initial condition for experimental-analytical prediction method. The comparison of predicted and experimental data of earth surface settlement in different countries is performed. The prediction with numerical methods is produced in 3D with application of elastic-plastic soil body model. The matching of numerical calculations data and data of experiments and analytical calculation is revealed. The proposed prediction methods may be used for geotechnical substantiation of projects of tunneling in heavy geological conditions.

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References

  1. Механика подземных сооружений. Пространственные модели и мониторинг / А.Г.Протосеня, Ю.Н.Огородников, П.А.Деменков, М.А.Карасев, Д.А.Потемкин, Е.Г.Козин. СПб, 2011. 355 с.
  2. Attewell P.B., Woodman J.P. Predicting the dynamics of ground settlement and its derivatives caused by tunnelling in soil // Ground Engineering, 1982. N 15 (8). P.13-22.
  3. Mechanized Tunnelling in Urban Areas: Design methodology and construction control / Vittorio Guglielmetti, Pier-giorgio Grasso, Shulin Xu; Taylor&Francis e-Library, 2007. 504 p.

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