石牌楼的化学加固

朱氏牌楼位于山西省原平县城西北15公里处的北阳武村，始建于清代咸丰五年九月（公元1855年），是中议大夫、陕西延榆绥道加盐运使衔武芳畴奉敕为其母朱氏雕造石质节孝牌坊。朱氏牌楼由于年久失修，加上人为破坏和风雨侵蚀，石头表面都有不同程度的风化剥落。屋顶构件摇摇欲坠，石檐下垂、断裂，下层南次楼前后外角塌落，明楼前檐二块飞椽从檐桁处断裂掉落。根据上述情况对朱氏牌楼进行化学加固维修，本文介绍各部位的修缮施工情况。

Chemical Reinforcement of a Stone Pailou

Located in Beiyangwu Village, 15 kilometers northwest of the city of Yuanping County, Shanxi Province, Zhu''s Archway was built in September of the fifth year of Xianfeng in the Qing Dynasty (1855 AD), and was built by Wu Fang chou as his mother Zhu''s . Due to the disrepair of the Archway , coupled with man-made destruction and wind and rain erosion, the stone surface has been weathered and peeled off to varying degrees. The roof components are crumbling, the stone eaves are drooping and broken. According to the above situation, the Zhu''s Archway is chemically reinforced and repaired, and this article introduces the repair and construction of each part.