Genesis Analysis and Stability Evaluation of Karst Area in the Mudengdong Village Based on the Geological Investigation and Numerical Simulation Methods
Table 2
Karst development degree characteristics and indicators.
Karst development degree
Karst phenomenon
Karst density (number/km2)
Maximum spring flow (l/s)
Karst rate of boreholes (%)
Extremely intense
Surface: a large cave Underground: a large-scale underground river system dominated by piped water
>15
>50
>10
Intense
Surface: karst caves, sinkholes, funnels, and depressions Underground: smaller-scale underground river, mainly containing pipe water and some fissure water
5∼15
10∼50
5∼10
Moderately intense
Surface: small scale caves, additional sinkholes, and funnels Underground: fissure-shaped underground river, dominated by fissure water
1∼5
5∼10
2∼5
Faint
Numerous dissolved fissures, a small number of sinkholes, funnels and karst springs, and multilayered aquifers dominated by fissure water
