Close proximity tunnelling and measures adopted in MRTA Orange Line – East project

Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 62)


As much as urbanization, transportation systems are crucial to consider in order to meet the demand for public transportation in huge and crowded cities. In the Bangkok downtown area, not only the aboveground space is very limited and blocked, but also the underground space is congested. Consequently, proximity tunnelling cannot be evaded. Furthermore, since the number of metro lines grows and underground usage becomes intricate, a system of stacked twin tunnels is frequently selected to be designed and constructed. The proximity tunnelling of the stacked twin tunnel system may cause significant structural integrity and excessive lining deformation of proceeding tunnel. In this paper, an evaluation of the close proximity tunnelling was conducted by using empirical analysis and numerical modelling. The empirical analysis was conducted using Peck’s Ground Distribution Curve, and the numerical modelling was conducted using the PLAXIS 3D program. Comparison of the results obtained from both analyses was discussed in the paper.


Close proximity tunnelling Stacked tunnel configuration Structural integrity 


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The author would like to appreciate Mass Rapid Transit Authority of Thailand (MRTA) and CKST Joint Venture for providing their project data and opinions for our analyses.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Asian Institute of TechnologyPathum ThaniThailand
  2. 2.Geotechnical & Foundation Engineering Co., LtdBangkokThailand

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