Experimental study on infrared characteristic recognition for water leakage of tunnel cracked lining

被引:0
|
作者
Zheng A. [1 ,2 ]
He Z. [1 ]
Li J. [1 ]
Zhang R. [1 ,2 ]
Tan B. [1 ,2 ]
Huang F. [1 ,2 ]
机构
[1] School of Civil Engineering, Chongqing Jiaotong University, Chongqing
[2] State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing
关键词
Concrete lining; Crack form; Infrared characteristics; Temperature field; Tunnel water leakage;
D O I
10.3969/j.issn.1001-0505.2022.01.014
中图分类号
学科分类号
摘要
To investigate the influence of crack damage form and leakage speed on the infrared characteristics of tunnel lining leakage, a test device was developed to simulate the humidity, temperature and illumination environment of tunnel, and the infrared characteristics of tunnel leakage were systematically studied. The experimental results show that the defect form has an important influence on the geometric distribution of the seepage zone (especially near outlet hole). With the increase of the leakage rate, the control effect of the defect form on the geometric form of the seepage zone will decrease. The geometric shape and spatial position of the water outlet can be preliminarily determined by the geometric shape and the centroid function curve of the isotherm in the high temperature zone of the water leakage. In general, the areas of water leakage for different defect forms increase linearly with the water leakage rate. The conclusions provide a theoretical basis for the disease identification standard and rapid identification method in the infrared detection technology of tunnel water leakage. © 2022, Editorial Department of Journal of Southeast University. All right reserved.
引用
收藏
页码:109 / 116
页数:7
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