Table 2 Classification of the causes of structural crack-related damage
From: Crack propagation risk threshold of classical garden rockeries based on LEFM
Damage causes | Damage characterization |
|---|---|
A. Foundation settlement | Rockery sinks or shifts under the action of gravity as a whole |
B. Peak rock tilt | The false mountain rock inclines and displaces due to external forces |
C. Adhesive detachment | Powder off: The adhesive powder between the rockery stone body is peeled off |
Whole piece off: The adhesive between the rockery stone body is broken off | |
D. Stress crack | The partial stone structure of the rockery is cracked and the depth is deep |
E. Plant–root splitting | Plants grow in the gap between rockeries and destroy rockeries through root splitting, resulting in cracking of rockeries |
