中东铁路砖石建筑遗产冻融循环风险研究

STUDY ON THE FREEZE-THAW CYCLE RISK OF THE MASONRY HERITAGE OF THE CHINESE EASTERN RAILWAY

针对冻融循环对砖石建筑遗产病害与老化的作用机理,以位于严寒地区的中东铁路建筑遗产为例,探索跨区域群体性文化遗产冻融循环风险的识别、评价与管控方法。确定砖石建筑遗产两种主要病害的测量方法与指标权重,量化评估遗产个体脆弱性,耦合以温度与湿度为基本参数的环境风险因子,得到遗产冻融循环风险水平。根据风险特征,提出建立多尺度工具平台,逐级渗透的保护教育方式及分级巡查维护等应对策略。

Concerning the mechanism of freeze-thaw cycle effects on disease and aging of masonry heritage,we explore the identification,the evaluation,and control methods of freeze-thaw cycle risks of cross-regional cultural heritage.Taking Chinese Eastern Railway architectural heritage located in a severe cold region as the case,we developed the measurement methods for the two major diseases of the masonry heritage.The weights of the diseases were calculated and a quantitative assessment of the individual vulnerability of the building heritage based on these data was carried out.The vulnerability indices are coupled with environmental risk factors including temperature and humidity as basic parameters to obtain the level of freeze-thaw cycle risk.According to the risk characteristics,we propose risk response strategies such as establishing a multi-scale platform,protection education by level penetration,and graded inspection and maintenance.