›› 2006, Vol. 27 ›› Issue (11): 2061-2065.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Site monitoring and analytical research on mechanical characteristics under construction partial press in double-arch tunnel

SHEN Yu-sheng, GAO Bo   

  1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2004-11-09 Online:2006-11-10 Published:2013-12-04

Abstract: According to the Xiedipo double-arch tunnel engineering of the Yishui(Yibin—Shuifu) Highway, the key parts of structure force are monitored and analyzed by setting testing component in the tunnel; and during each period of construction the stress state of surrounding rock, bolt axial force, internal force of the middle-wall and internal forces of tunnel supporting structure are obtained under the condition of the constructional partial press. By analyzing tunnel mechanical characteristic under constructional partial press, the conclusions are drawn as follows: the most dangerous construction procedure of the tunnel structure force is from one side to the other side in the construction of the tunnel, that the bending moment direction of the middle-wall is always from one tunnel constructed lastly to the other tunnel constructed firstly in the double-arch tunnel. The monitored data and the experience can be for reference in the design, construction and research of similar tunnels.

Key words: tunnel engineering, mechanical characteristics, constructional partial press, double-arch tunnel

CLC Number: 

  • U 456
  • 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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