From: Use of a 10.22 m diameter EPB shield: a case study in Beijing subway construction
BIR of the 8% bentonite slurry (%) | 4.0 | 6.0 | 8.0 |
---|---|---|---|
FIR of the foam liquid (5% of Concn and 10 of FER) (%) | |||
10 | 105 | 140 | 179 |
15 | 124 | 166 | 199 |
30 | 151 | 189 | 215 |
FIR of the foam liquid (5% of Concn and 12 of FER) (%) | |||
10 | 102 | 137 | 175 |
15 | 117 | 165 | 192 |
30 | 143 | 185 | 211 |
FIR of the foam liquid (5% of Concn and 15 of FER) (%) | |||
10 | 98 | 130 | 164 |
15 | 103 | 138 | 176 |
30 | 118 | 155 | 190 |