Research Article
A Biological Immune Mechanism-Based Quantum PSO Algorithm and Its Application in Back Analysis for Seepage Parameters
Table 3
Permeability coefficient of the dam body and dam foundation (cm/s).
| | Inversion material | Range of permeability coefficient | Determined material | Value of permeability coefficient |
| | Relative impermeable layer | 3 × 10−6∼3 × 10−4 | Upstream face slab | 1 × 10−7 | | Aquitard layer | 6 × 10−6∼6 × 10−4 | Bedding material | 5 × 10−4 | | Weak weathered layer | 8 × 10−5∼8 × 10−3 | Transition material | 3 × 10−1 | | Primary rock-fill | 1 × 10−1∼1 × 101 | Secondary rock-fill | 1 × 10−1 | | Impervious curtain | 3 × 10−6∼3 × 10−4 | Upstream blanket | 1 × 10−2 | | | | Upstream arbitrary fill material | 1 × 100 | | | | Downstream slope | 5 × 10−2 | | | | Dam crest material | 3.5 × 10−7 |
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