Research Article
Local Stability of Trench for Diaphragm Walls Passing through Deep Weak Interlayer
Table 1
Physical and mechanical parameters of strata.
| | Strata | Thickness, z (m) | Gravity, γ (kN/m3) | Cohesion, c (kPa) | Friction angle, φ (°) |
| | ① filled soil | 2.63 | 19.0 | – | – | | ② sandy silt | 1.56 | 19.0 | 6.9 | 29.5 | | ③ silty sand | 7.61 | 19.3 | 6.4 | 30.0 | | ④1 silty clay | 11.40 | 17.6 | 17.9 | 18.6 | | ④2 muddy clay | 3.00 | 17.7 | 13.8 | 13.1 | | ⑤1 silt | 2.00 | 18.4 | 6.1 | 12.8 | | ⑤2 silty clay with sand | 5.36 | 17.8 | 22.1 | 13.8 |
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