[Retracted] 3D Stratum Interpolation Algorithm of Metro Tunnel Based on BIM and Data Fusion

Table 3

Comparison of the original data and the data obtained by each interpolation.

ID	Original coordinates		Original elevation	Ordinary kriging	Improve kriging
	A	B	C	C	C
1	512	0	−3032.55	−3035.19	−3038.47
2	0	522.64	−3045.63	−3045.22	−3056.13
3	0	15542.84	−3051.17	−3059.85	−3088.29
4	0	2821.26	−3060.46	−3071.63	−3132.68
5	0	3830.96	−3170.27	−3211.24	−3255.60
…	…	…	…	…	…
812	762.44	25882.1	424.65	418.42	419.06
813	1523.17	26262.4	477.92	478.10	479.33
814	2260.83	2677.6	524.51	520.51	532.44
815	3744.22	2893.5	543.16	589.27	609.53