Research Article
Vertical Shaft Support Improvement Studies by Strata Grouting at Aquifer Zone
Table 1
The mechanical parameters of the aquifer, the shaft lining and the interface [
12,
27].
| Element type | Shaft lining | Aquifer | Interface |
| Elastic modulus (MPa) | 20,000 | 42 | Normal modulus (MPa) | 100 | Poisson’s ratio | 0.15 | 0.3 | Shear modulus (MPa) | 100 | Interior friction angle | 35° | 20° | 20° | | Cohesion (MPa) | 35 | 0.04 | 0.03 | |
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