摘要
空鼓是山西大学堂围墙的主要病害之一,会导致表层水泥砂浆抹面的剥离和内部砌体结构的风化,因此合理评估空鼓的严重程度是开展科学保护与修复的前提.在用手动敲击方法对围墙空鼓病害进行初步判别的基础上,综合采用相控阵超声成像以及红外热成像两种无损检测技术对局部病害开展精细探查,确定其分布范围和面积.结果表明:①手动敲击和两种检测技术这3种方法均可不同程度地反映空鼓病害的分布规律;②无损检测技术所得结果基本一致,局部误差与缺陷类型和环境因素有关;③围墙表面水泥砂浆抹面的空鼓状况总体比较严重,具体可划分为4个病害等级.研究成果对文物建筑表面空鼓病害探查与修复效果评估具有一定的借鉴和参考价值.
Surface detachment is one of the main defects of the Shanxi Academy walls,and it can lead to the peeling of cement mortar plaster and the weathering of interior masonry structures.Thus,it is necessary to evaluate its severity before conducting detailed conservation and restoration work.In this study,manual percussion was first performed for the preliminary detection of surface detachment defect.Next,two non-destructive testing techniques,i.e.phased-array ultrasonic imaging and infrared thermal imaging,were combined to measure the scope and area of distribution in detail.The results showed that(1)all methods could reflect the surface detachment distribution to different degrees,(2)data obtained using different non-destructive techniques were comparable to some minor errors correlated with defect types and environmental factors,(3)the detachment of cement mortar plaster from the wall surface was generally severe,and its defect rating could be divided into four specific grades.Tht research results are useful for detecting and evaluating surface detachment in cultural heritage buildings.
作者
黄继忠
章云梦
张悦
赵朋
HUANG Jizhong;ZHANG Yunmeng;ZHANG Yue;ZHAO Peng(Institute for the Conservation of Cultural Heritage,Shanghai University,Shanghai 200444,China;School of Mechanics and Engineering Science,Shanghai University,Shanghai 200444,China;Shanxi Ancient Architecture Engineering Supervision Co.Ltd.,Taiyuan 030012,Shanxi,China)
出处
《上海大学学报（自然科学版）》
CAS
CSCD
北大核心
2022年第4期656-667,共12页
Journal of Shanghai University:Natural Science Edition
基金
国家重点研发计划资助项目(2019YFC1520500)
山西省重点研发计划资助项目(201803D31080)
上海市文教结合资助项目。
关键词
空鼓病害
无损检测技术
超声成像
红外热成像
文物保护
detachment
non-destructive testing technique
ultrasonic imaging
infrared thermal imaging
heritage conservation
