【摘要】 综合考虑全生命周期内隧道结构工作性能重要影响因素，结合再次利用实际需求，建立了包括外部环境、衬砌结构和运营维护3个方面17项底层指标的利旧判断综合定量评价体系，将评价等级划分为Ⅰ级（充分利旧）、Ⅱ级（可利旧）、Ⅲ级（局部加固后可利旧）及Ⅳ级（不可利旧），并给出了等级特征描述；基于改进层次分析法赋予了指标体系权重，利用理论计算与数值模拟手段，并引入应力相对变化程度归一化多类型数据差异，确定了底层指标的分级标准及对应的赋分区间。为增加实际应用的便利性，基于上述评价体系，开发了利旧判断评价软件，并对某实际工程进行了利旧判断应用。更多还原

【Abstract】 Aiming at this problem, considering the important influencing factors of the working performance of the tunnel structure in the whole life cycle, combined with the actual demand of reuse, a comprehensive quantitative evaluation system of 17 underlying indicators including external environment, lining structure and operation and maintenance is established. The evaluation grade is divided into grade Ⅰ( fully utilized), grade Ⅱ( available), grade Ⅲ( available after local reinforcement) and grade Ⅳ( not available), and the grade feature description is given. Based on the improved analytic hierarchy process, the weight of the index system is given. Using theoretical calculation and numerical simulation methods, and introducing the relative change degree of stress to normalize the difference of multi-type data, the classification standard of the underlying index and the corresponding assignment interval are determined. In order to increase the convenience of practical application, based on the above evaluation system, a software for judging and evaluating the old-age is developed, and the application of the oldage judgment in a practical project is carried out.更多还原