|Table of Contents|

Grade division system of existing tunnel’s freeze injury based on event tree theory

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年06期
Page:
60-65
Research Field:
Publishing date:
2011-12-20

Info

Title:
Grade division system of existing tunnel’s freeze injury based on event tree theory
Author(s):
LUO Yan-bin1;  CHEN Jian-xun1;  WANG Meng-shu2;  QIAO Xiong3
1. School of Highway, Chang'an University,Xi'an 710064, Shaanxi, China; 2. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China; 3. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
Keywords:
tunnel engineering;  freeze injury;  event tree;  grade division
PACS:
U457.2
DOI:
-
Abstract:
In order to provide management measure for freeze injury of tunnel, based on the event tree theory, taking the occurrence of freeze injury to the tunnel as the initial fault event, the development of the tunnel's freeze injury, such as the lining peeling and breaking, water overflowing and freezing on the pavements, and water leakage and freezing of the lining, as the subsequent events, the inner link of every hidden danger was analyzed, the losses and rectification costs were estimated, the freeze injury degree of existing tunnel was divided into five grades, a general table was designed on the expansion and evolution of the freeze injury in highway tunnel at cold regions, then, a grade division system of highway tunnel's freeze injury was established. An example of a highway tunnel is given to verify the practicality of this system. It is found that an effective guide for the treatment work of tunnel 's freeze injury is provided by this system, the freeze injury degree which is judged by experience is avoided, and the validity and scientificity of providing management measure for freeze injury tunnel is improved. 3 figs, 12 refs.

References:

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Last Update: 2011-12-20