Stonework excavation is based on stone type, weathering degree and joint develop degree.
① 石方开挖根据岩石类别、风化程度和节理发育程度，确定开挖方法。
2
The main formation that causes water percolation into the cave is the unloading joint and the trivial cracks by weathering.
造成洞窟渗漏水的主要构造是卸荷节理和风化微裂缝。
3
Tectonic movements, granite joint systems, rock textures and structures, water erosion and weathering are basic factors responsible for the formation of granite landscapes.