南京报恩寺遗址模拟地宫开挖中及成型后的井体特征

Characteristic of well body during and after excavation of simulating underground palace in the site of Baoensi Monastery Nanjing

南京报恩寺地宫考古发掘完成后,地宫出现了众多病害,直接危及到遗址保存。国内外还无针对地宫类遗址保护的成熟经验,而地宫遗址的加固迫在眉睫。在研究对象附近开挖了一个相同岩土条件、等尺寸的模拟地宫,通过对模拟地宫开挖中和成型后井体变形、含水量、井内水位的监测,查明了模拟地宫井体的变化特征。研究成果有效地揭示了地宫遗址发掘过程中及发掘后井体的动态响应过程,再现了地宫遗址破坏过程,为保护加固地宫的方案设计奠定了科学的地质基础。

After excavation of the underground palace in the site of Baoensi Monastery Nanjing,numerous appearing diseases directly endanger the preserved ruins.There are no mature experiences on the protection of underground palaces.however,the research object needs urgently being conserved.Near the research object,a similar simulating underground palace as the same size and geotechnical conditions to the research object was excavated.By use of monitoring well deformation,moisture,and water level during and after excavation of simulating underground palace,changing characteristics of simulating underground palace is obtained.Research result efficiently reveals the dynamitic response characteristics of the same process in research object,and reproduces the damage process during archaeological excavation.Geological basis is established scientifically for the conservation scheme design of underground palace.