STUDY ON THE SETTLEMENT OF TUNNEL BOTTOM AND PRESSURE OF ROCK MASS BASED ON CURVED BEAM ON ELASTIC FOUNDATION THEORY

Authors

  • Haobo Fan China Railway Eryuan Engineering Group Co.Ltd, Chengdu 610031,China
  • Siyue He School of Highway, Chang'an University, Xi'an 710064, China
  • Dongping Zhao China Railway Eryuan Engineering Group Co.Ltd, Chengdu 610031,China
  • Xiuling Wang School of Highway, Chang'an University, Xi'an 710064, China
  • Hao Wang School of Civil & Construction Engineering, Oregon State University, 101 Kearney Hall, Corvallis, OR 97331 USA
  • Hao Ding School of Highway, Chang'an University, Xi'an 710064, China

DOI:

https://doi.org/10.14311/CEJ.2019.01.0010

Keywords:

Tunnel invert, Curved beam, Elastic foundation, Displacement equation, Pressure of rock mass

Abstract

Tunnel invert is the weak section of curved beam on tunnel foundation, and it is easy to break down. Based on the curved beam theory on elastic foundation, the curved beam model of tunnel invert was established, the displacement equations of tunnel invert under external load were deduced, and the formulas of settlement of tunnel bottom and the pressure of rock mass were presented. By means of the calculating formulas, the distribution laws of settlement of tunnel bottom and pressure of rock mass were obtained when tunnel bottom was strengthened and not strengthened by high pressure jet grouting piles. The final formulas in the paper are precise to predict the settlement of tunnel bottom and pressure of rock mass, so they are of great value for tunnel design and construction.

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Published

2019-04-30

How to Cite

Fan, H., He, S., Zhao, D., Wang, X., Wang, H., & Ding, H. (2019). STUDY ON THE SETTLEMENT OF TUNNEL BOTTOM AND PRESSURE OF ROCK MASS BASED ON CURVED BEAM ON ELASTIC FOUNDATION THEORY. Stavební Obzor - Civil Engineering Journal, 28(1). https://doi.org/10.14311/CEJ.2019.01.0010

Issue

Vol. 28 No. 1 (2019)

Section

Articles

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