Anchor rod retaining wall structure

Abstract

The utility model discloses an anchor rod retaining wall structure which comprises a side slope, a retaining wall body, a plurality of grouting holes formed in the side slope and a plurality of anchor rods penetrating through the retaining wall body and nailed into the grouting holes respectively. The retaining wall body comprises a plurality of vertical rib columns arranged between the anchor rods at intervals, soil retaining plates installed between the rib columns and filler filled between the soil retaining plates and a side slope. A reinforcing and fixing layer is arranged between the soil retaining plate and the filler and comprises a plurality of reinforcing rib plates attached to the surface of the slope, and a plurality of anchor rod penetrating holes are evenly distributed in each reinforcing rib plate. By changing the combined connection mode of the anchor rods and the retaining wall, the connection strength of the anchor rods is enhanced, and the problem of failure of the retaining wall is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to an anchor rod retaining wall structure. Background Art

[0002] In the field of construction and road construction, many aspects involve retaining wall slope support systems. Retaining walls refer to structures that support roadbed fill or hillside soil and prevent fill or soil from deforming and becoming unstable. In the cross section of a retaining wall, the part that is in direct contact with the supported soil is called the wall back; the part facing the air opposite to the wall back is called the wall surface; the part that is in direct contact with the foundation is called the base; the top surface of the wall opposite to the base is called the wall top; the front end of the base is called the wall toe; and the rear end of the base is called the wall heel.

[0003] The anchor retaining wall is one type of retaining wall, which is mainly composed of a wall surface consisting of prefabricated reinforced concrete columns and retaining boards, combined with horizontal or inclined steel anchors. One end of the anchor is connected to the column, and the other end is anchored in the rock or soil layer deep in the hillside. The pressure on the back side of the wall is transmitted to the column by the retaining board, and the wall is stabilized by the anchoring force between the anchor and the rock mass, that is, the pull-out resistance of the anchor. In the prior art, anchors are prone to quality problems such as insufficient anchor strength, loose connection with rib columns, unqualified prefabricated components, improper construction technology, loose grouting of anchor holes, etc. during construction, and even cause the retaining wall to fail. Utility Model Content

[0004] The utility model aims to provide an anchor rod retaining wall structure, which can enhance the connection strength of the anchor rod and avoid the problem of retaining wall failure by changing the combined connection mode of the anchor rod and the retaining wall.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is specifically as follows:

[0006] An anchor rod retaining wall structure comprises a slope, a retaining wall body, a plurality of grouting holes arranged in the slope, and a plurality of anchor rods passing through the retaining wall body and nailed into the grouting holes respectively; the retaining wall body comprises a plurality of vertical rib columns arranged at intervals between the anchor rods, a retaining plate installed between the rib columns, and a filler filled between the retaining plate and the slope; a reinforcing fixing layer is arranged between the retaining plate and the filler, the reinforcing fixing layer comprises a plurality of reinforcing rib plates attached to the surface of the slope, and a plurality of anchor rod through holes are evenly distributed on each reinforcing rib plate.

[0007] Furthermore, vertical anchor rods are arranged at intervals in the filler, and the vertical anchor rods pass through the reinforcing ribs.

[0008] Furthermore, the retaining plate is composed of multiple pieces, and each retaining plate is sequentially spliced ​​between two adjacent rib columns.

[0009] Furthermore, a drainage hole is provided on the rib column.

[0010] Furthermore, a concrete bottom plate is arranged below the rib column.

[0011] Furthermore, the plurality of anchor rods respectively pass through the reinforcing rib plates and are connected to the rib columns at corresponding positions.

[0012] Compared with the prior art, the advantages of the utility model are: on the basis of the traditional plate-column anchor retaining wall, the utility model sets a reinforcing fixing layer on one side of the slope, and makes the same anchor pass through the reinforcing ribs in the reinforcing fixing layer respectively and be connected to the rib columns, thereby further strengthening the connection strength of the anchor; at the same time, multiple anchors are passed through the same reinforcing rib so that the multiple anchors are stressed together, thereby avoiding corrosion and other problems such as retaining plate falling off and retaining wall failure during long-term use, thereby effectively enhancing the long-term stability of the retaining wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 The utility model is a structural schematic diagram of an anchor rod retaining wall structure provided by the utility model.

[0015] Figure 2 The utility model is a structural schematic diagram of a reinforcing rib plate of an anchor rod retaining wall structure provided by the utility model.

[0016] Reference numerals:

[0017] 1. Bottom plate; 2. Rib column; 3. Retaining plate; 4. Anchor rod; 5. Vertical anchor rod; 6. Reinforced rib plate; 7. Anchor rod hole. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0021] In addition, the terms “first”, “second”, “third”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0022] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0025] like Figure 1-Figure 2 As shown, an anchor retaining wall structure includes a slope, a retaining wall body, a plurality of grouting holes arranged in the slope, and a plurality of anchor rods 4 passing through the retaining wall body and nailed into the grouting holes respectively; the retaining wall body includes a plurality of vertical rib columns 2 arranged at intervals between the anchor rods 4, a retaining plate 3 installed between the rib columns 2, and a filler filled between the retaining plate 3 and the slope; a reinforcing fixing layer is arranged between the retaining plate 3 and the filler, and the reinforcing fixing layer includes a plurality of reinforcing rib plates 6 attached to the surface of the slope, and a plurality of anchor rod through holes 7 are evenly distributed on each reinforcing rib plate 6.

[0026] Compared with the prior art, in the prior art, the anchor type retaining wall is a light retaining wall, which is composed of a reinforced concrete slab and an anchor rod 4, and relies on the horizontal tension of the anchor rod 4 anchored in the rock and soil layer to withstand the lateral pressure of the soil. The anchor type retaining wall is suitable for roadbed retaining walls with anchoring conditions in areas with large wall height, lack of stone or difficult foundation excavation, and is generally used for road cutting retaining walls. In order to facilitate the installation of columns and baffles, vertical walls are mostly used. The column spacing is 2.5 to 3.5m, and each column is arranged with 2 to 3 anchor rods 4 depending on its height. The position of the anchor rod 4 should try to make the column bending distribution uniform. The anchor rod 4 is generally tilted horizontally downward by 10° to 45°, and the length of the anchor rod 4 is as short as possible. The effective anchoring length of the anchor rod 4 is generally not less than 4m in the rock layer, and should be 9 to 10m in the stable soil layer. The anchor hole is filled with expanded cement mortar; a section of the anchor rod 4 between the anchor hole and the wall surface is wrapped with asphalt to prevent rust. However, since the anchor-type retaining wall is a new type of protection implementation with a simple structure and special force, it is easy to have quality problems such as insufficient strength of the anchor rod 4, loose connection with the rib column 2, unqualified quality of prefabricated components, improper construction technology, loose grouting of the anchor hole, etc. during construction, and even cause the retaining wall to fail. In the utility model, a plurality of anchor rods 4 are respectively passed through the reinforcing ribs 6, and then respectively connected to the corresponding rib columns 2. The coordination of the reinforcing ribs 6 is used to strengthen the connection stability between the anchor rods 4 and the rib columns 2. Even if a few anchor rods 4 are insufficient in strength, they can still play a good hand-pulling ability.

[0027] Vertical anchor rods 5 are arranged at intervals in the filler, and the vertical anchor rods 5 pass through the reinforcing ribs 6. The vertical anchor rods 5 pass through the filler and are fixed to the reinforcing ribs 6, so that the reinforcing ribs 6 are stable when subjected to force.

[0028] The retaining plate 3 is composed of multiple pieces, and each retaining plate 3 is spliced ​​between two adjacent rib columns 2 in sequence.

[0029] The rib column 2 is provided with a drain hole. A concrete bottom plate 1 is provided below the rib column 2.

[0030] A plurality of anchor rods 4 respectively pass through the reinforcing ribs 6 and are connected to the rib columns 2 at corresponding positions.

[0031] During the specific construction, construction preparation should be given priority, and a preset number of anchor rods 4 should be prepared. Specifically, the anchor rod 4 should preferably use threaded steel bars of grade 2 or above, which can be composed of one or two roots, with a diameter of 18 to 32 mm. In order to facilitate the connection with the rib column 2, the end rod part should be threaded as required and equipped with corresponding nuts and gaskets. If necessary, prestressed anchoring can also be performed with steel wire bundles. The anchor rod 4 must have anti-rust measures, such as galvanizing, anti-rust paint, asphalt hemp, asphalt glass cloth, etc. If conditions permit, the anchor rod 4 can also be sleeved, with an inner diameter 4 to 5 mm larger than the outer diameter of the anchor rod 4, and epoxy resin can be poured for sealing and protection. The mortar grade used for the grouting hole should be greater than M3.0, and the cement used to prepare the cement mortar should be silicate expansion cement or self-stress cement to prevent shrinkage. Try to use a mixer to stir to ensure that the mortar has high pumpability and low grouting properties. Then the foundation pit is excavated and the foundation is poured to form a concrete bottom plate 1, etc. Then the side slope is drilled, and the pre-prepared anchor rods 4 are passed through the grouting holes and grouting anchored, and the reinforcing ribs 6 are installed. After further exploration, the rib columns 2 are made and installed, and the rib columns 2 are connected to the anchored anchor rods 4 in turn and the retaining plates 3 are installed. Finally, after connecting the vertical anchor rods 5 to the reinforcing ribs 6, fill the space between the retaining plates 3 and the reinforcing ribs 6 and compact them.

[0032] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An anchor retaining wall structure, characterized by: The invention comprises a side slope, a retaining wall body, a plurality of grouting holes arranged in the side slope, and a plurality of anchor rods (4) passing through the retaining wall body and nailed into the grouting holes respectively; the retaining wall body comprises a plurality of vertical ribs (2) arranged at intervals between the anchor rods (4), a retaining plate (3) installed between the ribs (2), and a filler filled between the retaining plate (3) and the side slope; a reinforcing fixing layer is provided between the retaining plate (3) and the filler, the reinforcing fixing layer comprising a plurality of reinforcing ribs (6) attached to the side slope surface, and a plurality of anchor rod through holes (7) evenly distributed on each reinforcing rib (6).

2. The anchor retaining wall structure according to claim 1, characterized in that: Vertical anchor rods (5) are arranged at intervals in the filler, and the vertical anchor rods (5) pass through the reinforcing ribs (6).

3. The anchor retaining wall structure according to claim 1, characterized in that: The retaining plate (3) is composed of multiple pieces, and each retaining plate (3) is sequentially spliced ​​between two adjacent rib columns (2).

4. The anchor retaining wall structure according to claim 1, characterized in that: The rib column (2) is provided with a water drainage hole.

5. The anchor retaining wall structure according to claim 4, characterized in that: A concrete bottom plate (1) is provided below the rib column (2).

6. The anchor retaining wall structure according to claim 1, characterized in that: The plurality of anchor rods (4) respectively pass through the reinforcing ribs (6) and are connected to the rib columns (2) at corresponding positions.

Images