石窟寺及石刻类文化遗产由于长期在自然营力的作用下，极易受构造应力、裂隙扩张、雨水侵蚀等因素影响，产生严重的岩体失稳现象。以大足石刻石篆山摩崖造像为例，通过对石窟区的工程地质条件及区域岩石的宏观力学特性进行综合性分析，在此基础上分别对两处倾倒式（R1）和滑移式（R2）破坏模式下的危岩体进行量化评价，计算结果表明在考虑地震因素影响作用下，R1、R2危岩体的稳定性安全系数分别为1.39和1.20。鉴于石窟区文物保存现状和游客参观服务的特殊性，采取“锚杆加固+条石砌筑+裂隙灌浆+做旧处理”综合性加固措施，及时消除了石篆山摩崖造像重大险情，确保游客和文物安全。进一步通过位移和应力监测数据，发现加固后R1和R2危岩体的变形量控制在3 mm和6 mm范围内，验证了加固方案的有效性，为石窟区危岩体病害防治与加固提供一定理论依据。

Due to the long-term action of natural forces, the cultural heritages of grotto temples and stone carving are extremely vulnerable to tectonic stress, crack expansion, rainwater erosion, etc., resulting in serious rock mass instability. Taking the Cliff Statues of Shizhuan Mountain in Dazu Rock Carvings as an example, through a comprehensive analysis of the engineering geological conditions of the stone carving area and the macro mechanical properties of regional rock. On this basis, the quantitative evaluation of the dangerous rock masses under the two dumping (R1) and slipping (R2) failure modes is carried out respectively, the calculation results show that the stability safety factors of R1 and R2 dangerous rock mass are 1.39 and 1.20 respectively under the influence of seismic factors. Considering the particularity of preservation status of cultural relics and the tourist visit services in the grotto area, a comprehensive treatment of "bolt reinforcement + stone masonry + crack grouting + old treatment" is adopted, which eliminates the major danger of Shizhuan Mountain cliff statues in time to ensure the safety of tourists and cultural relics. By monitoring the displacement and stress, the deformation of R1 and R2 dangerous rock masses are controlled within the range of 3 mm and 6 mm after reinforcement, which verifies the effectiveness of the reinforcement scheme. It provides a certain theoretical basis for the prevention and reinforcement of disease of dangerous rock mass in the grotto area.