Anchoring reinforced soil retaining wall suitable for plateau area

Abstract

The utility model relates to an anchoring reinforced soil retaining wall suitable for a plateau area. The anchoring reinforced soil retaining wall comprises a plurality of panels, geogrids, connecting strips, anchor cables, anchor cable connecting bodies, inhaul cables and filling soil. The anchoring type reinforced soil retaining wall can be suitable for plateau areas such as the Qinghai-Tibet plateau and the Yunnan-Guizhou plateau, is safe in construction and economical, and solves the problems that a traditional reinforced soil retaining wall is large in occupied area, and the tensile capacity, the shear resistance and the anti-freezing capacity cannot be considered at the same time.

Description

Technical Field

[0001] The utility model relates to a retaining wall structure. Background Art

[0002] The commonly used reinforced earth retaining wall is to pile up panels one by one, and add geogrids in layers behind them. The length of the geogrid is generally equivalent to the height of the slope to ensure the overall stability of the reinforced earth retaining wall. The defects of the above-mentioned prior art are: the traditional reinforced earth retaining wall has a high requirement for the length of the geogrid, occupies a large area, and has limited space at the foot of the slope area. Especially in plateau areas such as the Qinghai-Tibet Plateau and the Yunnan-Guizhou Plateau, many slope mountain sections are narrow at the bottom and wide at the top, and the lower space is not enough to lay the geogrid or the laying length cannot meet the standard requirements. Therefore, the geogrid has insufficient tension, which leads to the overall stability of the reinforced earth retaining wall cannot meet the requirements, and there is a large safety hazard. Plateau areas are often located in plateaus, with narrow roads, limited available construction areas, and great temperature changes. Natural disasters such as landslides are frequent. In the process of slope management, the retaining wall has high requirements for tensile, shear, high temperature and frost resistance. Summary of the invention

[0003] The utility model aims to overcome the problems that traditional reinforced earth retaining walls occupy a large area and cannot simultaneously take into account the tensile strength, shear strength and frost resistance, and to provide an anchored reinforced earth retaining wall that can be used in plateau areas such as the Qinghai-Tibet Plateau and the Yunnan-Guizhou Plateau, and is safe and economical to construct.

[0004] The purpose of the utility model is achieved by the following technical scheme: an anchored reinforced earth retaining wall suitable for plateau areas, comprising a plurality of panels, geogrids, connecting strips, anchor cables, anchor cable connectors, cables, and backfill; characterized in that a plurality of the anchor cables are respectively anchored in the slope soil and arranged at intervals in the horizontal and vertical directions, a plurality of the anchor cables are connected by cables, and an anchor cable connector is formed at the connection between the anchor cables and the cables; backfill is layered and compacted above the anchor cable connector, and geogrids are layered above the backfill, one end of the geogrid is fixed to the cables and the anchor cables by an annular connecting strip, and the other end is connected to the panel to form a whole, and the geogrids on each panel are interconnected with the anchor cables.

[0005] The geogrid adopts a biaxially stretched glass fiber geogrid with a mesh size of approximately 30mm*40mm, a rectangular rib cross-section, a laying width of 1.5m to 2m, a distance between each layer of 0.6m, and its surface is impregnated with asphalt and coated with an antifreeze agent; the anchor cable adopts a high-strength, low-relaxation, non-bonded steel strand, and the arrangement spacing is the same as the laying width of the geogrid, which is 1.5m to 2m, presenting a plum blossom-shaped frame structure, and the cross-sectional dimensions of the horizontal and vertical anchor cables are both 0.6m×0.6m. The anchor cable is connected to the geogrid and the cable to form a stable structure.

[0006] Compared with the prior art, the advantages of the present invention are: anchor cables are implanted in the rock and soil slope to form an anchor body, which not only occupies a small area, but also can provide a large pull-out resistance. The geogrid is connected to the anchor cables and the cables, which can provide a large pulling force for the reinforcement belt, thereby solving the problem of insufficient overall stability of the reinforced earth retaining wall on the slope. The anchor cables are arranged at intervals horizontally and vertically, and multiple anchor cables are connected by cables. The connection forms an anchor cable connector, which forms a stable structure with the slope, effectively preventing thermal expansion and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the utility model;

[0008] Figure 2 It is a top view schematic diagram of the utility model;

[0009] In the figure: 1. Panel; 2. Geogrid; 3. Geogrid and anchor cable connection strip

[0010] 4. Anchor cable; 5. Anchor cable connector; 6. Horizontal and vertical connecting cables; 7. Filling DETAILED DESCRIPTION

[0011] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solution of the present invention in detail.

[0012] like Figure 1 , 2 As shown: the utility model is composed of a plurality of panels 1, a geogrid 2, a connecting strip 3 between the geogrid and the anchor cable, an anchor cable 4, an anchor cable connector 5, transverse and vertical connecting cables 6, and fill 7.

[0013] A plurality of anchor cables 4 are anchored in the slope soil, and arranged at intervals in the horizontal and vertical directions. A plurality of anchor cables 4 are connected by cables 6, and an anchor cable connector 5 is formed at the connection between the anchor cables 4 and the cables 6; backfill 7 is layered and compacted above the anchor cable connector 5, and geogrid 2 is layered above the fill 7. One end of the geogrid 2 is tied and fixed to the cables 6 and the anchor cables 4 by connecting strips 3, and the other end is connected to the panel 1 to form a whole. The geogrid 2 on each panel 1 is interconnected with the anchor cables 4. This implementation scheme occupies a small area and has low cost, and can be effectively used in the process of treating smaller slopes in mountainous areas. By implanting anchor cables 4 in the rock and soil slope to form an anchor body, the anchor body can provide a large pull-out resistance, and the geogrid 2 is connected to the anchor cables 4 and the cables 6, which can provide a large pulling force for the reinforcement belt, thereby solving the problem of insufficient overall stability of the reinforced earth retaining wall in the slope section.

[0014] The geogrid 2 adopts a biaxially stretched glass fiber geogrid with a mesh size of approximately 30mm*40mm, a rectangular rib cross-section, a laying width of 1.5m to 2m, a distance between each layer of 0.6m, and its surface is impregnated with asphalt and coated with an antifreeze agent, so that it has better thermal stability and anti-freezing properties, and effectively prevents thermal expansion and contraction and freeze-thaw phenomena; the anchor cable 4 adopts high-strength, low-relaxation, non-bonded steel strands, and the arrangement spacing is the same as the laying width of the geogrid 2, which is 1.5m to 2m, presenting a plum blossom-shaped frame structure, and the cross-sectional dimensions of the horizontal and vertical anchor cables are both 0.6m×0.6m. The anchor cable 4 is connected to the geogrid 2 and the cable 6 to form a stable structure, which can provide a large pulling force for the reinforcement belt, thereby solving the problem of insufficient overall stability of the reinforced earth retaining wall on the slope section, and effectively preventing thermal expansion and contraction.

Claims

1. An anchored reinforced earth retaining wall suitable for plateau areas, comprising a plurality of panels (1), geogrids (2), connecting strips (3), anchor cables (4), anchor cable connectors (5), cables (6), and fill (7); characterized in that: A plurality of anchor cables (4) are anchored in the slope soil, and are arranged at intervals in the horizontal and vertical directions. The plurality of anchor cables (4) are connected by cables (6), and an anchor cable connector (5) is formed at the connection between the anchor cables (4) and the cables (6). Backfill (7) is backfilled and compacted in layers above the anchor cable connector (5), and geogrids (2) are laid in layers above the fill (7). One end of the geogrid (2) is fixed to the cables (6) and the anchor cables (4) by an annular connecting strip (3), and the other end is connected to the panel (1) to form a whole. The geogrid (2) on each panel (1) is interconnected with the anchor cables (4).

2. The anchored reinforced earth retaining wall suitable for plateau areas as claimed in claim 1, characterized in that: The geogrid (2) is a biaxially stretched glass fiber geogrid with a mesh size of approximately 30 mm*40 mm, a rectangular rib cross-section, a laying width of 1.5 m to 2 m, a distance between each layer of 0.6 m, and a surface impregnated with asphalt and coated with an antifreeze agent; the anchor cable (4) is a high-strength, low-relaxation, non-bonded steel strand with an arrangement spacing that is the same as the laying width of the geogrid (2), which is 1.5 m to 2 m, presenting a plum blossom frame structure, with the cross-sectional dimensions of the transverse and vertical anchor cables both being 0.6 m×0.6 m. The anchor cable (4) is connected to the geogrid (2) and the cable (6) to form a stable structure.

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