Welding ground anchor construction manner null of lurch

摘要

PURPOSE:To prevent disruption of a steep inclined land and permit afforestation on a normal plane to reduce construction cost by arranging an exhaust pipe comprising an outer pipe and an inner pipe at a portion corresponding to the tensile portion of an anchor to remove ground water and infiltrated water. CONSTITUTION:An exhaust pipe 27, comprising a pipe with holes and a pipe without hole which are made as a synthetic-resin-made outer pipe with water running holes in its periphery and an iron-made inner pipe respectively, is joined with part of the tensile portion 22 of a tensile material 26, the tip portion of which has an exhaust anchor 42, with injection of grout 23a, constituted. Then, the anchor 42 is arranged on an slope 43 in a somewhat lower direction than a level to hold back a pressure supporting wall 41 for every block provided on the slope 43. An exhaust pipe 27 is fitted into a steady ground 28 by 1-2m to prevent dislocation of the cross sections of an anchor portion and an exhaust pipe portion, and collects water from a ground water area 46 and exhausts it via a space of the inner and the outer pipes. The exhausted water is removed through a side groove 45 to the outside of a disruption area, together with ground-level water.