Abstract
Yuanjue Cave is the core exquisite cultural relic of the Dazu Stone Carvings World Cultural Heritage Site. For hundreds of years, with the continuous effect of natural forces and the erosion of various deterioration factors, the sidewall and roof rock mass of Yuanjue Cave were eroded, some parts of supporting rock mass were fragmented, and the boundary conditions of the rock mass have deteriorated, which have seriously endangered the Yuanjue Cave; once the roof collapses, the national treasure in the cave will be destroyed. In order to preevaluate the stability characteristics of the Yuanjue Cave rock mass and provide key parameters for the preventive protection of the Yuanjue Cave, this paper firstly established a refined database of key parameters of Yuanjue Cave and adjacent areas (geometry, geology, physical properties) based on three-dimensional laser point cloud scanning, a fine survey of adjacent areas, engineering geophysical prospecting, and indoor multifactor coupling tests. Then, based on FLAC3D finite difference numerical simulation technology, an accurate three-dimensional numerical calculation model of Yuanjue Cave was constructed. Finally, the model was used to analyze the roof stability of Yuanjue Cavern, revealing the deformation laws of the Yuanjue Cave roof under static load conditions, and the numerical calculation results were compared with the on-site measured results, verifying the feasibility of the high-precision modeling method, and the reliability of the numerical calculation results provided a reference for the preventive protection of the cultural relics of the cave temple.
Highlights
Most of the stone carvings of the cave temple are attached to the mountain
Stone materials are the main material carriers of the cave temple cultural relics, which can be used as the artistic carrier of carving and painting and as the carrier of the cave temple structures and buildings. e historical value and artistic value of cultural relics reside in the stone material carrier
In view of this, based on the results of the preliminary protection of the roof of Yuanjue cave, the author first adopted three-dimensional laser point cloud scanning, refined survey of adjacent areas, engineering geophysical exploration, and indoor multifactor coupling experiments, and other methods to obtain a refined database of key parameters of Yuanjue cave and adjacent areas; based on FLAC3D finite difference numerical simulation technology, an accurate three-dimensional numerical calculation model of Yuanjue cave was constructed; the model was used to analyze the deformation law of roof rock mass in Yuanjue cave and provide a reference for the preventive protection of the cave temple cultural relics
Summary
Most of the stone carvings of the cave temple are attached to the mountain. Cultural relics are directly carved on the cliff wall and connected with the mountain. In view of this, based on the results of the preliminary protection of the roof of Yuanjue cave, the author first adopted three-dimensional laser point cloud scanning, refined survey of adjacent areas, engineering geophysical exploration, and indoor multifactor coupling experiments, and other methods to obtain a refined database of key parameters of Yuanjue cave and adjacent areas; based on FLAC3D finite difference numerical simulation technology, an accurate three-dimensional numerical calculation model of Yuanjue cave was constructed; the model was used to analyze the deformation law of roof rock mass in Yuanjue cave and provide a reference for the preventive protection of the cave temple cultural relics
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
