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中文摘要：
针对目前世界最大直径的长距离盾构隧道,基于可拓学理论的物元可拓性和菱形思维方法,将研究对象、评判指标和指标特征值结合成为物元,通过物元表述关系式建立隧道健康诊断的物元模型,确立健康诊断指标体系和指标评判基准,提出了基于熵和乘积标度的融合赋权方法,并依据非对称贴近度原则进行了上海长江隧道（崇明越江通道）健康诊断的研究工作,同时也给出了可拓学健康诊断方法的具体实现步骤.研究结果表明：隧道健康诊断的可拓学法能全面系统地反映隧道结构的整体健康状态,且健康诊断结果可靠合理,其作为新的健康诊断思路和方法可为隧道长期健康服役和及时合理的养护维修提供科学的理论支撑与技术指导.
英文摘要：
Based on rhombus thought and extension theory that matter element is of extension nature,research objects and judging indexes as well as the index characteristic values are considered as matter element.Matter-element model is established in accordance with the relationships between matter-elements,health diagnosis indexes system and the criterion for evaluating indexes are also determined.Fusion index weight method based on Shannon entropy and multiplication scale method is proposed.Then taking the Shanghai Yangze River Tunnel,which is a long-distance shield tunnel with the largest diameter in the world at present,as an object,in light of the principle of unsymmetrical nearness degree,the evaluation of the tunnel health conditions carries out according to theories mentioned above and the processes of the health diagnosing method based on extension theory are presented.According to the results,it is demonstrated that the health diagnosing method based on extension theory can be adopted to evaluate health state of tunnel structure,and the evaluating results is reasonable and reliable.As a new health diagnosing method,it will provide scientific theory foundation and valuable technology instruction for durable health state and timely maintenance of tunnel.
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