Adaptability of a Reinforced Concrete Diaphragm Wall Cut by Disc Cutter

On the background of a subway project in Suzhou City Jiangsu Province and targeting engineering difficulty disc cutters cutting reinforced concrete walls, this paper illustrates adaptability diaphragm wall cut by cutter through conducting related laboratory tests numerical simulations. When wall, should use low-penetration depth excavation pattern with penetration kept within 10 mm/r. In order to keep torque small floating range, cutterhead driving speed thrust be strictly controlled during period. Three types fracture surface after operation, namely, single-side rolling destroy, double-sided brittle destroy. The percentage length steel bar smaller than 60 cm can reach 44.2% when parameters are well regulated. simulation results show that deeper penetration, more unstable load. relationship between normal force was linear, trend simulated value comparable experimental one, which ensures rationality pattern. spacing had little impact on it wider 80 mm.