| In recent years, with China’s large-scale construction of the highway tunnel, its mileageincreases gradually and the tunnel damage problems are more serious. However, there is noscientific or rational evaluation model and methods of tunnels’ health status in china currently.Therefore, this paper based on the research on the diagnostic health status of highway tunnels,carries out the following research for comprehensive diagnosis of the health status in thehighway tunnel.1.Fully analysis the major structural damage morphology of the highway tunnel,determine the diagnostic indicators of the health status of highway tunnel diagnostic indicatorsystem, establish diagnostic indicators’ qualitative and quantitative criteria of lining crack,leakage of water, deterioration of the lining material, voids between the liners, liningdeformation and subsidence, lining flaking.2.On the basis of the research on the characteristics of diagnostic index weight, adoptanalytic hierarchy process to establish criteria and index weights, while through the studyabout the theory of fuzzy comprehensive evaluation, set up fuzzy comprehensive evaluationmodel of the highway tunnel’s the health status.3.Relying on Liu pan shan tunnel engineering, which is on the secondary roads, use theestablished comprehensive evaluation model of the health status in the highway tunnel tomake analysis and evaluation in the selected damages tunnel section and sections within thetypical damage sectional and the corresponding control measures are put forward.4.Under the tunnels’ actual damage, frame lining structure security calculation modelbased on the load-structure method. By calculating and analyzing the influence degree ofsingle and composed damages, such as lining cracking, shortage of thickness and strength,voids between the liners and so on, on the safety performance of the lining structure,obtaining corresponding damages affect discipline for the safety performance of the tunnellining. |
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