Ribbed column anchor rod retaining wall without notch groove

Abstract

The invention discloses a ribbed column anchor rod retaining wall without a notch groove. The ribbed column anchor rod retaining wall comprises a grid, a supporting retaining structure, and a coping beam, wherein the grid is formed by ribbed columns and beams connected in a staggered mode, the supporting retaining structure is arranged in the grid, the coping beam is connected to the top of the grid, a plurality of anchor rods are connected to the grid and anchor into the side slope, shear resistant structures are connected to the grid at regular intervals and extend into the side slope, an installation hole is formed in the grid, the shear resistant structures are arranged in the installation hole in a penetrating mode and are fixedly connected with the grid, and an included angle betweenthe shear resistant structures and the grid and an included angle between the anchor rods and the grid are in the same size. The ribbed column anchor rod retaining wall without the notch groove has remarkable effects that the dark rib or semi-dark rib construction structure is replaced by designing the shear resistant structures, labor and the construction period are effectively saved, the project cost is reduced, the construction efficiency is improved, and deformation of an anchorage steel bar caused by shear stress is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of rock slope support, in particular to a rib-column type bolt retaining wall without grooves. Background technique [0002] Rock slope support projects often use rib column or lattice anchor retaining wall, which is composed of anchor (or cable), rib column (or lattice) and panel, that is, the anchor is set in the rock body, The outer end of the anchor rod is connected with a rib column to form a body. The rib column strengthens the overall stress effect of the anchor rod and improves the overall stability of the slope. In the design of the rib column, the rib column should be embedded in the rock slope by 100mm-300mm according to the specification requirements, and even the highway subgrade design specification "JTGD30-2015" and other specifications have made clear requirements that it is necessary to carve a depth of 100mm-300mm on the rock slope, and a width of 100mm. The 300mm~600mm slots, on the one ...

AI Technical Summary

Problems solved by technology

However, the mechanical construction of the grooving process is difficult, and often requires a lot of labor and construction period, and the project cost is high and the efficiency is low

Especially in projects with high time requirements, it is impossible to provide sufficient time limit for groove construction

Therefore, the traditional rib column design has certain defects in the actual high and steep rock slope treatment engineering.

[0004] In addition, due to the high height of the rib column 1 (usually greater than 15.0m) in the treatment project, the self-weight of the large height will generate a large shear stress, but the anchor reinforcement cannot provide shear strength and can only be subjected to Tension or compression, if this stress will deform the anchoring steel bar, it will lead to a sharp decrease in the tensile performance of the steel bar, resulting in defects in the self-stability of the rib column

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