Numerical Model of Road Tunnel with Void between the Liner and Surrounding Rock and its Application

Abstract:

Article Preview

Void between road tunnel liner and surrounding rock is one of the most frequent defects in tunnel engineering. In this paper, contact method is introduced into the numerical model to simulate the interaction between tunnel liner and surrounding rock. The relationship between the key parameters of void and safety factor of the structure is systematically studied with the numerical model. Results show that position and width of void are the key parameters, while depth and shape of void are unimportant and negligible. It can also be concluded that the decrease rate of safety factor to the increase of circular width is almost the same while void is in different position. Conclusions gained are helpful for inspection, operation status assessment and rehabilitation of road tunnel in future.

Info:

Periodical:

Advanced Materials Research (Volumes 261-263)

Edited by:

Jingying Zhao

Pages:

1257-1260

DOI:

10.4028/www.scientific.net/AMR.261-263.1257

Citation:

J. Y. Zheng and H. J. Liu, "Numerical Model of Road Tunnel with Void between the Liner and Surrounding Rock and its Application", Advanced Materials Research, Vols. 261-263, pp. 1257-1260, 2011

Online since:

May 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.