Prefabricated retaining wall structure

Abstract

The utility model discloses a prefabricated retaining wall structure, and belongs to the field of building components. According to the technical scheme, the prefabricated retaining wall structure comprises a base and a vertical wall perpendicularly arranged on the base, a plurality of buttresses are arranged between the side wall of the vertical wall and the base at intervals, a first connecting part used for being connected with the vertical wall is arranged on the base, and a second connecting part used for being connected with the vertical wall is arranged on the base. The side wall of the vertical wall is provided with a second connecting part used for being connected with the buttress, and a reinforcing part used for reinforcing the strength of the connecting position of the base and the vertical wall is arranged between the base and the vertical wall. The base, the vertical wall and the buttress are all made of reinforced concrete prefabricated parts, after installation, the strength of the first connecting part, the strength of the second connecting part and the strength of the reinforcing part meet the standard requirement, the construction period is greatly shortened, and the construction progress is promoted.

Description

Technical Field

[0001] The utility model belongs to the technical field of building components, and in particular relates to a prefabricated assembled retaining wall structure. Background Art

[0002] Common retaining wall types in the construction field are divided into gravity retaining wall, cantilever retaining wall and buttress retaining wall, among which buttress retaining wall refers to a retaining wall that connects the vertical wall and the heel plate with a buttress at a certain distance along the vertical arm of the cantilever retaining wall. It is generally a reinforced concrete structure. Buttress retaining wall is a reinforced concrete thin-wall retaining wall. Its main features are simple structure, convenient construction, small wall section, light weight, better performance of material strength, and can adapt to foundations with low bearing capacity. It is suitable for areas lacking stone materials and earthquakes. It is generally used in higher fill sections to stabilize embankments to reduce earthwork and floor space. Buttress retaining wall has a small cross-sectional size. The weight of the soil on the heel plate can effectively resist overturning and sliding. The vertical plate and buttress jointly bear the bending moment and shear force generated by the soil pressure, which is better than the cantilever retaining wall. It is suitable for fill slopes with a height of 6 to 12 meters and can effectively prevent the sliding of fill slopes.

[0003] Existing buttress retaining walls are generally cast-in-place structures. The retaining wall construction project includes reinforcement engineering, formwork engineering, pouring engineering and maintenance engineering, etc. There are many construction steps and a long construction period, which is not conducive to the rapid advancement of the overall project. If prefabricated components are used for retaining wall construction, the positioning process between prefabricated components is complicated, the hoisting process requires frequent proofreading, and the stability of the connection is poor. Utility Model Content

[0004] The utility model provides a prefabricated assembled retaining wall structure to solve at least one of the above technical problems.

[0005] The technical solution adopted by the utility model is:

[0006] A prefabricated and assembled retaining wall structure comprises a base and a vertical wall arranged vertically on the base, a plurality of buttresses are arranged between the side wall of the vertical wall and the base, a first connecting portion for connecting the vertical wall is provided on the base, a second connecting portion for connecting the buttresses is provided on the side wall of the vertical wall, and a reinforcing portion for reinforcing the strength of the connection between the base and the vertical wall is provided between the base and the vertical wall.

[0007] Preferably, the first connecting portion includes a plurality of first columns preset on the base, the bottom of the vertical wall is provided with a plurality of first connecting grooves cooperating with the first columns, and the side wall of the vertical wall is provided with first grouting holes penetrating with the first connecting grooves.

[0008] Preferably, the second connecting portion includes a plurality of second columns arranged vertically at intervals and preset on the side walls of the vertical wall, the side walls of the buttresses are provided with a plurality of groups of second connecting grooves arranged vertically at intervals and cooperating with the second columns, and the side walls of the vertical wall are provided with second grouting holes connected to the second connecting grooves.

[0009] Preferably, the reinforcement part includes a plurality of V-shaped angle steel plates arranged at intervals along the length direction of the connection seam between the base and the vertical wall, the V-shaped angle steel plate has two connecting support arms, the two connecting support arms are respectively fixedly connected to the vertical wall and the base by bolts, and a connecting stiffening plate is welded between the two connecting support arms.

[0010] Preferably, the longitudinal cross-section of the vertical wall is a trapezoid that is narrow at the top and wide at the bottom.

[0011] Preferably, a plurality of limiting bosses are arranged at intervals on the base, and a limiting groove structure cooperating with the buttress is formed between two adjacent groups of limiting bosses.

[0012] Preferably, a first connecting flange is provided on a side wall of the base, and a first positioning groove cooperating with the first connecting flange is provided on a side of the base opposite to the first connecting flange.

[0013] Preferably, the side wall of the vertical wall is provided with a second connecting flange, and a second positioning groove cooperating with the second connecting flange is provided on a side of the vertical wall opposite to the second connecting flange.

[0014] Preferably, it is characterized in that a positioning boss is provided on the base, and a third positioning groove for cooperating with the positioning boss is provided at the bottom of the buttress.

[0015] Preferably, the first grouting hole and the second grouting hole are both inclined channels.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0017] 1. In this application, the base, vertical wall and buttress are all made of reinforced concrete prefabricated components. The prefabricated components are produced in the prefabricated component factory, and after maintenance, they are delivered to the construction site. After installation, they can wait until the strength of the first connection part, the second connection part, and the reinforcement part meet the specification requirements, which greatly shortens the construction period and promotes the construction progress. Moreover, the base, vertical wall and buttress can be processed by different manufacturers respectively, which can greatly shorten the production cycle and further speed up the delivery progress of the finished products, thereby further shortening the construction period.

[0018] 2. As a preferred embodiment of the utility model, the first column is matched with the first connecting groove by plugging, and then the connecting seam is blocked by a template and sealed by foam glue, and the gap between the first connecting groove and the first column is poured with grouting material through the first grouting hole, and the template can be removed after the grouting material solidifies.

[0019] In order to make the transportation of the base more convenient, only the lap steel bars and the steel cage structure inside the first column can be reserved at the position of the first column. When the base is brought into the site, the reserved lap steel bars are welded to the main bars of the steel cage structure of the first column. After welding, the steel cage structure inside the first column of the first column is inserted into the first connecting groove, and then the connecting seam is blocked by the template and sealed with foam glue. The gap between the first connecting groove and the first column is poured with grouting material through the first grouting hole, and the template can be removed after the grouting material solidifies. The connection method between the second column and the second connecting groove is the same as that between the first column and the first connecting groove. The construction difficulty is low, the construction steps are significantly simplified, and the construction efficiency is greatly improved.

[0020] 3. As a preferred embodiment of the utility model, the V-shaped angle steel plate and the stiffening plate can increase the structural strength of the joint between the vertical wall and the base, support and limit the lower end connection of the vertical wall, and prevent the vertical wall from tipping over under the pressure of the soil layer. The stiffening plate can increase the structural strength of the V-shaped angle steel plate.

[0021] 4. As a preferred embodiment of the utility model, the vertical wall has a longitudinal cross-section that is narrow at the top and wide at the bottom. This design can gradually increase the compressive strength of the vertical wall from top to bottom, adapt to the pressure of the corresponding soil layer depth, increase the retaining effect and safety, and increase the rationality of the design.

[0022] 5. As a preferred embodiment of the utility model, the setting of the limiting boss can cooperate with the V-shaped angle steel plate to support the vertical wall, thereby increasing the stability of the vertical wall. At the same time, the limiting groove structure formed between adjacent limiting bosses can position and limit the buttresses, so that the buttresses can be installed accurately and stably. In addition, the setting of the limiting boss can also increase the structural strength of the base to prevent the base from being damaged during transportation, lifting and laying.

[0023] 6. As a preferred embodiment of the present utility model, the first connecting flange and the first positioning groove are provided to provide a positioning mark when the two bases are connected end to end. After the first connecting flange and the first positioning groove cooperate with each other, the two bases are connected into a whole by filling grouting material into the connecting gap, thereby increasing the stability of the overall structure of the retaining wall.

[0024] 7. As a preferred embodiment of the present utility model, the second connecting flange and the second positioning groove are provided to provide a positioning mark when adjacent vertical walls are connected end to end. After the second connecting flange and the second positioning groove cooperate with each other, the two bases are connected into a whole by filling grouting material into the connecting gap, thereby further increasing the stability of the overall structure of the retaining wall.

[0025] 8. As a preferred embodiment of the present invention, the positioning boss and the third positioning groove are provided to facilitate the limiting and positioning of the buttress during the installation of the buttress, thereby increasing the stability of the buttress during the installation process.

[0026] 9. As a preferred embodiment of the present invention, the inclined channel is provided to facilitate the diversion of the grouting material, so that the grouting material flows by itself and fills the first connecting groove and the second connecting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is one of the three-dimensional structural schematic diagrams of a specific implementation method of the utility model;

[0028] Figure 2 This is one of the schematic diagrams of the cross-sectional structure of the utility model;

[0029] Figure 3 This is the second schematic diagram of the cross-sectional structure of the utility model;

[0030] Figure 4 This is the second schematic diagram of the three-dimensional structure of a specific implementation method of the utility model;

[0031] Figure 5 It is a top view of the utility model;

[0032] Figure 6 It is a rear view of the utility model.

[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0034] In the attached picture:

[0035] 1. Base; 101. First column; 102. First connecting flange; 1021. First positioning groove; 103. Positioning boss; 2. Vertical wall; 201. First connecting groove; 2011. First grouting hole; 202. Second column; 2021. Second grouting hole; 203. Second connecting flange; 2031. Second positioning groove; 3. Buttress; 301. Third positioning groove; 302. Second connecting groove; 4. Limiting boss; 5. V-shaped angle steel plate. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0038] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 invention.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0041] Reference Figure 1-Figure 6A prefabricated and assembled retaining wall structure includes a base 1 and a vertical wall 2 vertically arranged on the base 1, a plurality of buttresses 3 are arranged between the side wall of the vertical wall 2 and the base 1, a first connecting portion for connecting the vertical wall 2 is provided on the base 1, a second connecting portion for connecting the buttress 3 is provided on the side wall of the vertical wall 2, and a reinforcing portion for strengthening the strength of the connection between the base 1 and the vertical wall 2 is provided between the base 1 and the vertical wall 2.

[0042] It can be understood by those skilled in the art that during the construction of the retaining wall, the base 1 needs to be hoisted at a designated position on the soil foundation to provide a stable installation position for the vertical wall 2 and the buttress 3. The base of the entire retaining wall is formed by splicing a number of bases 1 end to end. After the installation and construction of the base of the retaining wall is completed, the vertical wall 2 and the buttress 3 are installed on each base 1. The base 1, the vertical wall 2 and the buttress 3 are all made of reinforced concrete prefabricated components. The prefabricated parts are produced in the prefabricated parts factory, and are delivered to the construction site after maintenance. After installation, wait for the strength of the first connection part, the second connection part, and the reinforcement part to meet the specification requirements, which greatly shortens the construction period and promotes the construction progress. Moreover, the base 1, the vertical wall 2, and the buttress 3 can be processed by different manufacturers respectively, which can greatly shorten the production cycle and further speed up the delivery progress of the finished parts, thereby further shortening the construction period.

[0043] The first connection part includes a plurality of first columns 101 preset on the base 1, a plurality of first connection grooves 201 matched with the first columns 101 are provided at the bottom of the vertical wall 2, and a first grouting hole 2011 penetrating the first connection groove 201 is provided on the side wall of the vertical wall 2. The first column 101 is matched with the first connection groove 201 by plugging, and then the connection seam is blocked by a template and sealed by foam glue, and the gap between the first connection groove 201 and the first column 101 is filled with grouting material through the first grouting hole 2011, and the template can be removed after the grouting material solidifies.

[0044] In order to make the transportation of the base 1 more convenient, only overlapping steel bars and a steel cage structure inside the first column 101 can be reserved at the position of the first column 101. When the base 1 is delivered to the site, the reserved overlapping steel bars are welded to the main bars of the steel cage structure of the first column 101. After the welding is completed, the steel cage structure inside the first column 101 of the first column 101 is inserted into the first connecting groove 201, and then the connecting seam is blocked by a template and sealed with foam glue, and grouting material is poured into the gap between the first connecting groove 201 and the first column 101 through the first grouting hole 2011. After the grouting material solidifies, the template can be removed.

[0045] The second connection part includes a plurality of second columns 202 arranged at intervals in a vertical direction and preset on the side wall of the vertical wall 2, a plurality of second connection grooves 302 arranged at intervals in a vertical direction and matched with the second columns 202 are provided on the side wall of the buttress 3, and a second grouting hole 2021 communicating with the second connection grooves 302 is provided on the side wall of the vertical wall 2. The connection mode between the second column 202 and the second connection groove 302 is the same as the connection mode between the first column 101 and the first connection groove 201, and no further details are given here.

[0046] As a specific implementation of the reinforcement part in this application, refer to Figure 1 , Figure 5 And 6, the reinforcement part includes a plurality of V-shaped angle steel plates 5 arranged at intervals along the length direction of the connection seam between the base 1 and the vertical wall 2, the V-shaped angle steel plate 5 has two connecting support arms, the two connecting support arms are respectively fixedly connected to the vertical wall 2 and the base 1 by bolts, and a connecting stiffening plate is welded between the two connecting support arms.

[0047] The V-shaped angle steel plate 5 and the stiffening plate can increase the structural strength of the joint between the vertical wall 2 and the base 1, support and limit the lower end connection of the vertical wall 2, and prevent the vertical wall 2 from tipping over under the pressure of the soil layer. The stiffening plate can increase the structural strength of the V-shaped angle steel plate 5.

[0048] As a preferred embodiment of the vertical wall 2, the vertical cross section of the vertical wall 2 is a trapezoidal shape that is narrow at the top and wide at the bottom. This design can gradually increase the compressive strength of the vertical wall 2 from top to bottom, adapt to the pressure of the corresponding soil layer depth, increase the retaining effect and safety, and increase the rationality of the design.

[0049] As a preferred embodiment of the present application, refer to Figure 3-Figure 5 A plurality of limiting bosses 4 are arranged at intervals on the base 1 , and a limiting groove structure cooperating with the buttress 3 is formed between two adjacent groups of limiting bosses 4 .

[0050] The setting of the limiting boss 4 can cooperate with the V-shaped angle steel plate 5 to support the vertical wall 2, thereby increasing the stability of the vertical wall 2. At the same time, the limiting groove structure formed between adjacent limiting bosses 4 can position and limit the buttress 3, so that the buttress 3 can be installed accurately and stably. In addition, the setting of the limiting boss 4 can also increase the structural strength of the base 1 to prevent the base 1 from being damaged during transportation, lifting and laying.

[0051] As another preferred embodiment of the present application, refer to Figure 1The side wall of the base 1 is provided with a first connection flange 102, and the side of the base 1 opposite to the first connection flange 102 is provided with a first positioning groove 1021 that matches the first connection flange 102. The first connection flange 102 and the first positioning groove 1021 are provided to provide a positioning mark when the two bases 1 are connected end to end. After the first connection flange 102 and the first positioning groove 1021 cooperate with each other, the two bases 1 are connected as a whole by filling grouting material into the connection gap, thereby increasing the stability of the overall structure of the retaining wall.

[0052] The side wall of the vertical wall 2 is provided with a second connection flange 203, and the side of the vertical wall 2 opposite to the second connection flange 203 is provided with a second positioning groove 2031 that matches the second connection flange 203. The second connection flange 203 and the second positioning groove 2031 are provided to provide a positioning mark when the adjacent vertical walls 2 are connected end to end. After the second connection flange 203 and the second positioning groove 2031 cooperate with each other, the two bases 1 are connected as a whole by filling the connection gap with grouting material, thereby further increasing the stability of the overall structure of the retaining wall.

[0053] As a preferred example of this application, refer to Figure 2 and Figure 4 A positioning boss 103 is provided on the base 1 , and a third positioning groove 301 for matching the positioning boss 103 is provided at the bottom of the buttress 3 .

[0054] The positioning boss 103 and the third positioning groove 301 are provided to facilitate limiting and positioning of the buttress 3 during installation of the buttress 3 , thereby increasing the stability of the buttress 3 during installation.

[0055] As another preferred example of the present application, refer to Figure 2 and Figure 3 The first grouting hole 2011 and the second grouting hole 2021 are both inclined channels. The inclined channels are arranged to facilitate the flow of the grouting material, so that the grouting material flows by itself and fills the first connecting groove 201 and the second connecting groove 302.

[0056] It should be noted that the grouting material in the present application adopts high-strength, self-compacting grouting material, which does not require vibration or curing during the pouring process and can solidify quickly, thereby shortening the construction period and improving construction efficiency.

[0057] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0058] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0059] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A prefabricated retaining wall structure, comprising a base (1) and a vertical wall (2) vertically arranged on the base (1), wherein a plurality of buttresses (3) are arranged between the side wall of the vertical wall (2) and the base (1), characterized in that: The base (1) is provided with a first connection portion for connecting to the vertical wall (2), the side wall of the vertical wall (2) is provided with a second connection portion for connecting to the buttress (3), and a reinforcement portion for strengthening the strength of the connection between the base (1) and the vertical wall (2) is provided between the base (1) and the vertical wall (2).

2. A prefabricated retaining wall structure according to claim 1, characterized in that: The first connection portion comprises a plurality of first columns (101) preset on the base (1); a plurality of first connection grooves (201) matching with the first columns (101) are provided at the bottom of the vertical wall (2); and a first grouting hole (2011) penetrating with the first connection grooves (201) is provided on the side wall of the vertical wall (2).

3. The prefabricated retaining wall structure according to claim 2, characterized in that: The second connecting portion comprises a plurality of second columns (202) arranged at intervals in a vertical direction and preset on the side wall of the vertical wall (2); the side wall of the buttress (3) is provided with a plurality of groups of second connecting grooves (302) arranged at intervals in a vertical direction and cooperating with the second columns (202); and the side wall of the vertical wall (2) is provided with a second grouting hole (2021) communicating with the second connecting grooves (302).

4. The prefabricated retaining wall structure according to claim 1, characterized in that: The reinforcement portion comprises a plurality of V-shaped angle steel plates (5) arranged at intervals along the length direction of the connection seam between the base (1) and the vertical wall (2), the V-shaped angle steel plates (5) having two connection support arms, the two connection support arms being fixedly connected to the vertical wall (2) and the base (1) respectively by bolts, and a connection stiffening plate being welded between the two connection support arms.

5. The prefabricated retaining wall structure according to claim 4, characterized in that: The vertical wall (2) has a trapezoidal cross section that is narrow at the top and wide at the bottom.

6. The prefabricated retaining wall structure according to claim 5, characterized in that: A plurality of limiting bosses (4) are arranged at intervals on the base (1), and a limiting groove structure cooperating with the buttress (3) is formed between two adjacent groups of limiting bosses (4).

7. The prefabricated retaining wall structure according to claim 1, characterized in that: The side wall of the base (1) is provided with a first connecting flange (102), and the side of the base (1) opposite to the first connecting flange (102) is provided with a first positioning groove (1021) that matches the first connecting flange (102).

8. The prefabricated retaining wall structure according to claim 7, characterized in that: The side wall of the vertical wall (2) is provided with a second connecting flange (203), and the side of the vertical wall (2) opposite to the second connecting flange (203) is provided with a second positioning groove (2031) matched with the second connecting flange (203).

9. A prefabricated retaining wall structure according to any one of claims 1 to 8, characterized in that: The base (1) is provided with a positioning boss (103), and the bottom of the buttress (3) is provided with a third positioning groove (301) for matching the positioning boss (103).

10. The prefabricated retaining wall structure according to claim 3, characterized in that: The first grouting hole (2011) and the second grouting hole (2021) are both inclined channels.

Images