Method and Application of Urban 3D Rapid Modeling of Geology Based on CAD Borehole Logs

Table 3

Borehole verification.

Borehole no	Raw data		Model data		Error	Error analysis
	Bottom elevation/m	Lithology	Bottom elevation/m	Lithology
ZK126	72.85	Silt	72.38	Silt	0.47	Stratigraphic correspondence
ZK126	71.15	Silty soil	71.48	Silty soil	0.33
ZK126	69.95	Silty clay	70.08	Silty clay	0.13
ZK126	69.15	Silty soil	68.38	Silty soil	0.77
ZK126	66.75	Silty clay	66.18	Silty clay	0.57
ZK126	64.65	Silty soil	/	/	/	Stratigraphic amalgamation
ZK126	62.45	Silty soil	62.98	Silty soil	0.53
ZK126	60.95	Silty clay	/	/	/
ZK126	58.65	Silty clay	59.58	Silty clay	0.93
ZK126	57.45	Silty soil	57.68	Silty soil	0.23	Stratigraphic correspondence
ZK126	53.35	Fine sand	52.98	Fine sand	0.37
ZK126	51.15	Silty clay	50.68	Silty clay	0.47
ZK126	27.45	Fine sand	28.03	Fine sand	0.58