... excavation fluid property modeled pore pressure modeled pressure sequence groundwater flow time sandstone 1 pressure change piezometer sandstone unit recovery shear moduli model case modified rock sensitivity ARMA 23 0562 Numerical investigation of mining-induced, hydromechanically-coupled...

... sandstone unit near the top of both abutments, (2) a middle sandstone unit with numerous interbeds of argillite and siltstone, (3) a thick argillite designated unit M extending to near the base of both abut- ments, (4) a lower sandstone unit which forms most of the foundation, and (5) a small but continuous...