Study on the Method of Automatically Drawing Multiscale Engineering Geotechnical (Geological) Sections Step by Step of Engineering Layers including Lenses

Table 3

The layer code of strata and its coarsen results on a regional scale.

1st stratigraphical column	2nd stratigraphical column	Lithology
2	2–1	Silty clay
	2–2	Silt
	2–3	Silt
	2–4	Silty clay
	2–5	Silt
4	4–1	Silty clay
	4–2	Silt
	4–3	Silt
	4–4	Silt-fine sand
	4–5	Silt
5	5–1	Silty clay
	5–2	Silt
	5–3	Silt
	5–4	Silt-fine sand
	5–5	Silt
	5–6	Silty clay
5	5–7	Silty clay
	5–8	Silt sand
	5–9	Silty clay
6	6–1	Silt-fine sand
	6–2	Silty clay
7	7–1	Silty clay
	7–2	Silt
	7–3	Clay
	7–4	Silt-fine sand
8	8–1	Silt-fine sand
	8–2	Medium sand
9	9–1	Silt
	9–2	Silty clay
	9–3	Silty clay
	9–4	Silt-fine sand
	9–5	Silt-fine sand

Note: The 2nd stratigraphical column has been modified by the organization rules of this study.