Research Article
Permeability Properties of Jointed Rock with Periodic Partially Filled Fractures
Table 1
Results of the penetration test for sand.
| | Number | Time (s) | Water head difference of piezometer tube (cm) | Water head difference (cm) | Hydraulic gradient | Volume (cm3) | Permeability coefficient (cm/s) | Average value (cm/s) | | I | II | III | | | Average value |
| | — | (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | | — | — | — | — | — | (2)-(3) | (3)-(4) | | | — | | — | | 1 | 25 | 251 | 178 | 101 | 73 | 77 | 75 | 7.5 | 215 | | | | 2 | 25 | 228 | 145 | 50 | 83 | 95 | 89 | 8.9 | 220 | | | 3 | 25 | 218 | 133 | 36 | 85 | 97 | 91 | 9.1 | 245 | | | 4 | 25 | 205 | 117 | 20 | 88 | 97 | 92.5 | 9.25 | 256 | |
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