Analysis of the Influence of Whipstock Point Position of Directional Drilling through Embankment on the Stability of Embankment Slope against Sliding

Table 1

Layered statistical table of geological characteristics of foundation soil.

Soil layer number	Name of soil layer	Feature description
1	Embankment filling	Gray-yellow, slightly wet, loose state, poor uniformity, mainly clay soil, containing a small number of plant rhizomes, local plain fill, medium-high compressibility
2	Silt with silty clay	Gray-yellow, very wet, loose-slightly dense state, local silt, low dry strength, low toughness, rapid shaking reaction, lusterless; silty clay, soft-plastic state, medium compressibility, medium-dry strength, medium toughness, no shaking reaction, slightly shiny
3	Clay	Grayish yellow, plastic-hard plastic state, containing ferromanganese nodules and calcareous nodules, locally silty clay, medium compressibility, high dry strength, high toughness, no rocking reaction, and smooth section
4	Silty clay	Gray-yellow, brown-yellow, plastic-hard plastic state, iron-manganese nodules and calcareous nodules, local clay, medium compressibility, medium-dry strength, medium toughness, no shaking reaction, slightly shiny