Causes and Classification Methods of Tunnel Unusual Phenomena in Taiwan
Date Issued
2006
Date
2006
Author(s)
Chi-chuan, Liu
DOI
zh-TW
Abstract
The Purpose of this paper is to establish the processes of unusual phenomena classification by collecting cases of tunnel inspection in Taiwan. Taiwan in circum-Pacific orogenic zone, the tunnels face hard environment conditions such as plate tectonic forces, faulted rocks, earthquakes, and abundant groundwater. For efficient maintenances of tunnel structures need a systematic methods of inspections built by local experiments.
This paper include four main parts which are the in-situ unusual phenomena, causes interpretation, the processes for decision of causes, and a case study. The unusual phenomena of tunnel lining cause damages , and could be divided to four types: (1)cracks, spalling, and collapse of lining material, (2)deformation of lining, (3)water leakage, (4)material deterioration of lining.
The processes of tunnel inspection as several steps are described (1) inside tunnel inspection, including lining’s surface, lining and the interface between ling and ground, (2)deciding damage scales as part or whole of the lining section, (3)deciding the causes crudely by inside tunnel inspection and the types of crack distribution or lining deformation, (4)checking causes by environment conditions ,(5)making the strategy of damage repair.
As through the case applied, the suggest procedure in this paper would make the tunnel inspection more systematically and is helpful to collect long-term monitoring data for reliability study of tunnel in Taiwan statistically.
Subjects
隧道檢測
隧道異狀
隧道異狀成因
tunnel inspection
Tunnel Unusual Phenomena
Causes of Tunnel Unusual Phenomena
Type
thesis
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