Table 2 Rock properties before and after reinforcement with synthetic organosilicone and acrylic compounds (polymers)
Parameters | Unit | Untreated Rock | Eucoseal (Acrylic) | Tegosivin HL 100 + Wacker OH (TEOS) | Wacker BS 15 + MTMOS | Wacker 280 + Rhodorsil 11309 |
|---|---|---|---|---|---|---|
Rock unit weight above phreatic level | γunsat kN/m3 | 18 | 20.3 | 19.1 | 21.4 | 19.5 |
Rock unit weight below phreatic level | γsat kN/m3 | 22 | 22.4 | 22.1 | 23.2 | 21.7 |
Young’s modulus | E ref kN/m2 | 2.270E + 06 | 3.365E + 06 | 3.000E + 06 | 4.290E + 06 | 2.650E + 06 |
Shear modulus | G ref kN/m2 | 8.867E + 05 | 1.277E + 06 | 1.181E + 06 | 1.681E + 06 | 1.035E + 06 |
Oedometer modulus | E oed kN/m2 | 2.902E + 06 | 4.180E + 06 | 3.749E + 06 | 5.336E + 06 | 3.388E + 06 |
Poisson’s ratio | ν (nu) | 0.28 | 0.28 | 0.27 | 0.28 | 0.28 |
Cohesion | C ref kN/m2 | 500 | – | 650 | 800 | – |
Friction angle | φO | 35 | – | 36 | 39 | – |
Shear wave velocity | Vs m/s | 715 | 785 | 778 | 877 | 721 |
Longitudinal wave velocity | Vp m/s | 1293 | 1421 | 1387 | 1563 | 1305 |
Uniaxial compressive strength | UCS kN/m2 | 2400 | 4800 | 4300 | 6200 | 3500 |
Bending strength | Bending strength σy kN/m2 | 560 | 1540 | 1220 | 3970 | 800 |
Shear strength | Τf kN/m2 | 400 | – | 700 | 750 | – |
