Genesis Analysis and Stability Evaluation of Karst Area in the Mudengdong Village Based on the Geological Investigation and Numerical Simulation Methods
Table 1
Features of the karst collapse points (or funnels) in the study area.
Observation point
Location
Morphology and characteristics
Causes
LT1
Gentle slope platform
An ellipse with a length of 2 m and a width of 3 m, and a vertical settlement of 1.5 m
Dissolution, mainly by surface rainwater infiltration
LT9
Foot of slope
An ellipse with a length of 0.5 m and a width of 0.4 m, and a vertical settlement of 0.9 m
Dissolution, but predominantly induced by earthquakes
LT5
Gentle slope platform
An ellipse with a length of 4 m in length and a width of 3 m, and a vertical settlement of 2-3 m
Dissolution, but predominantly induced by earthquakes
LT8
A basin surrounded by mountains on all sides
An ellipse with a length of 0.5 m and a width of 0.4 m, and a vertical settlement of 0.5 m
Dissolution, mainly by surface rainwater infiltration
LT15
Foot of the halfway hill slope
An oval shape with a length of 1.5 m and a width of 0.8 m, and a depth of about 8m
Dissolution, mainly by surface rainwater infiltration