Stability Analysis of Grouting Strengthening in the Goaf Underlying a Canal
In this paper an old mining goaf in Henan province is studied with the application of 3D nonlinear finite element method. The excavation and backfilling construction and water conveyance operation of the canal upper the old mining goaf is analyzed. Simulation results show that after the grouting strengthening, no layers exceed corresponding strength limit under both canal construction and operation conditions, meanwhile the surface movement and the size of the deformation are within the scope of the standard and won’t affect the construction and safety operation of the canal.
W. Y. Lu et al., "Stability Analysis of Grouting Strengthening in the Goaf Underlying a Canal", Advanced Materials Research, Vols. 588-589, pp. 1914-1917, 2012