工程地质学报
工程地質學報
공정지질학보
2015年
3期
533-538
,共6页
砂岩%石质文物%风化病害%风化机理
砂巖%石質文物%風化病害%風化機理
사암%석질문물%풍화병해%풍화궤리
Sandstone%Stone culture relics%Weathering diseases%Deterioration mechanics
世界文化遗产地承德避暑山庄内有大量的砂岩文物。在长期风化作用下，很多砂岩文物发生了严重的风化病害，亟须保护。通过现场调查，发现避暑山庄砂岩文物的风化病害主要为开裂、剥落、粉化、生物寄生等。通过室内测试，得出了该砂岩的矿物学、岩石学性质和物理、力学性质。在此基础上，分析了该砂岩的风化机理，认为钙质胶结物的溶解、干湿交替和盐分结晶膨胀是造成该砂岩粉化、剥落风化的主要原因。相关研究为该砂岩文物的修复保护提供科学支撑。
世界文化遺產地承德避暑山莊內有大量的砂巖文物。在長期風化作用下，很多砂巖文物髮生瞭嚴重的風化病害，亟鬚保護。通過現場調查，髮現避暑山莊砂巖文物的風化病害主要為開裂、剝落、粉化、生物寄生等。通過室內測試，得齣瞭該砂巖的礦物學、巖石學性質和物理、力學性質。在此基礎上，分析瞭該砂巖的風化機理，認為鈣質膠結物的溶解、榦濕交替和鹽分結晶膨脹是造成該砂巖粉化、剝落風化的主要原因。相關研究為該砂巖文物的脩複保護提供科學支撐。
세계문화유산지승덕피서산장내유대량적사암문물。재장기풍화작용하，흔다사암문물발생료엄중적풍화병해，극수보호。통과현장조사，발현피서산장사암문물적풍화병해주요위개렬、박락、분화、생물기생등。통과실내측시，득출료해사암적광물학、암석학성질화물리、역학성질。재차기출상，분석료해사암적풍화궤리，인위개질효결물적용해、간습교체화염분결정팽창시조성해사암분화、박락풍화적주요원인。상관연구위해사암문물적수복보호제공과학지탱。
The mountain resort and its outlying temples,Chengde,located 250km northeast to Beijing,were built between 1703 and 1792.They are the Qing dynasty’s royal gardens and temples.In 1994,it was listed as a World Heritage Site by UNESCO.Sandstone blocks were extensively used for the buildings.Many stone relics have been suffered from various weathering diseases including crack,scaling,disintegration,and biological invasion due to long-term weathering.In the paper, properties of mineralogy, physical and mechanical of weathered and unweathered sandstone samples are analyzed using petrographical and petrophysical methods.On this basis, deterioration mechanism is analyzed.The main causes of the sandstone weathering (main including scaling and disintegration)are dissolution calcareous cement,drying-wetting cycle and salt crystallization.The results can facilitate the choice of the most suitable conservation method.
