›› 2006, Vol. 27 ›› Issue (1): 11-16.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Simulating study on construction process of tunnels with small spacing for different classes of surrounding rocks

LI Yun-peng1, WANG Zhi-yin1, HAN Chang-ling2, HUO Ming2, AI Chuan-zhi1   

  1. 1.School of Mechanical and Electrical Engineering, China University of Petroleum, Beijing 102249, China; 2 First Highway Investigation Design and Research Institute, Ministry of Communications, Xi’an 710075, China
  • Received:2004-08-17 Online:2006-01-10 Published:2013-10-31

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Abstract: Based on different classes of surrounding rocks, the numerical simulation of construction process is studied for three roadway tunnels with small spacing, adopting the typical method of double side excavation. The damage characteristic and the deformation law of surrounding rocks are given in the construction process for the different classes of surrounding rocks of three driveway tunnels. The comparability of the distributive law of deformation along the tunnel boundary is indicated for different classes of surrounding rocks; and the relative ratio of maximum displacement is obtained. By comparing the deformation and the plastic damage law in the interval wall between tunnels, the minimum spacing is selected for engineering design reference in three roadway tunnels. It is shown from analysis that the reasonable spacing is more than 0.45B for surrounding rock class II and between 0.35B and 0.45B for surrounding rock class III and between 0.20B and 0.35B for surrounding rock classification IV and V. The key locations of measurement and control are given for the feedback information construction, and these provide the reference data and the theoretical basis for the development and construction design of highway tunnels with small spacing.

Key words: highway, tunnels with small spacing, classes of surrounding rocks, numerical simulation

CLC Number: 

  • TU 457
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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