The research about Secondary liner supporting time In soft rock highway tunnel

›› 2017, Vol. 31 ›› Issue (4): 406-409.

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The research about Secondary liner supporting time In soft rock highway tunnel

WU Qingquan, LI Haohui, HUANG Jiahua， HUANG Baosheng

(Guangxi Traffic Planning Survey and Design Institute Co.Ltd., Nanning 530011)

Received:2017-05-11 Revised:2017-05-24 Online:2017-08-20 Published:2017-08-22

Abstract

Abstract: In the process of construction of carbonaceous rock road tunnel, it is of great significance to determine the optimal timing of the second lining support, and the reference standard given in the highway specification is one-sided and not targeted. A highway tunnel in Guangxi Carbonaceous Area is the object of study Considering the characteristics of collapse, expansion and creep of surrounding rock, FALC3D software is used for numerical analysis, combined with on-site monitoring data to determine the best timing of the second lining support and guide the construction.

Key words: Highway Tunnels, Carbonaceous, Secondary Lining Support Time, Numerical Analysis

WU Qingquan, LI Haohui, HUANG Jiahua， HUANG Baosheng. The research about Secondary liner supporting time In soft rock highway tunnel[J]. , 2017, 31(4): 406-409.

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The research about Secondary liner supporting time In soft rock highway tunnel

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