| 摘要 |
PURPOSE:To raise the safety of soil degradation by determining the number of anchor rods to be driven and the shape of cross section from measured values of bending stress and shearing stress to be received by the anchor rods driven in the slope ground. CONSTITUTION:Plural anchor rods 5 are driven into a graded slope ground 1 where the degradation of soil lumps 4 could occur. The ends of the ground surface are connected in a tensed state by a connector 6, e.g., turnbuckle, etc., and by the clamping force, the portion near the surface of the sloped ground is fixed to prevent small degradation of soil. Strain guages are attached to the places corresponding to points A and B at which the axes of the anchor rods and landslide face 3 are crossed with each other. Bending stress and shearing stress acting on the points A and B of dispersion load DELTAP(=P/2) to be received by the anchor rods 5 are exactly and quickly measured by measurers provided on the outside in order to determine the number of rods to be driven and cross section and shape of the rods. |
