Potential shaft lengths of complex shafts in case of a vadose zone thickness of 100 m if the shaft sections along bedding plane and fracture developed in a zone with a thickness of 50-50 m.

Table 4: Potential shaft lengths of complex shafts in case of a vadose zone thickness of 100 m if the shaft sections along bedding plane and fracture developed in a zone with a thickness of 50-50 m.

α₁	α₂	f.a.h.	α₂	f.a.h.	α₂	f.a.h.	α₂	f.a.h.
α₁	10^°		20^°		30^°		40^°
30^°	394.00	3.94	247.06	2.47	200	2.00	178.12	1.78
40^°	372.12	3.72	225.18	2.25	178.12	1.78	156.24	1.56
50^°	358.94	3.59	212.00	2.12	164.94	1.65	143.06	1.43
60^°	351.47	3.51	204.00	2.04	157.47	1.57	135.59	1.36
70^°	345.55	3.46	200.25	2.00	151.55	1.52	129.67	1.30
80^°	345	3.45	198.08	1.98	151.02	1.51	129.14	1.29
90^°	344	3.44	197.06	1.97	150.00	1.50	128.12	1.28

α₁ : Inclination of fracture and fault; α₂ : Bed inclination; f.a.h.: Specific shaft length.